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Welcome to the February 2012 Division of Laser Science (DLS) Newsletter! The Table of Contents shown above illustrates the wide variety of information contained in this issue of the newsletter. Thank you for taking the time to read the newsletter and to stay informed about recent and upcoming events that affect members of the APS Division of Laser Science. Feel free to contact me with comments, questions, or items for inclusion in the next newsletter, which should come out in July or August.
Amy VanEngen Spivey, editor
Dear DLS Members,
The unique role of the Division of Laser Science (DLS) is already implicit in the ambiguity of its name. The laser is a device invented just over fifty years ago, and while there is still a great deal of science in the engineering task of building better lasers (science that has a home in DLS) there is a far greater range of science in the application of lasers to an ever increasing range of important problems, both fundamental and applied. It is the science of these applications that is the primary focus of our division. Lasers are an indispensable tool in atomic and molecular physics, in medicine, in condensed matter physics, in quantum information, in attosecond physics, in high energy density physics and even in x-ray physics. I am convinced that this range of problems which are appropriately addressed by our division is going to grow rapidly for at least another twenty years as lasers become more compact and extend the range of intensities available beyond 1020 W/cm2, pulse durations below 10-17seconds, and wavelengths into the hard x-ray region. The rapid development of nanometer scale devices also provides an extremely promising area for exploitation of laser science.
If we are to serve this rapidly changing field, we really must be flexible and willing to reach out rapidly and provide a home for the new areas of laser science as they are developed. Our principal meetings at CLEO:QELS and FiO/LS are ideal for this outreach as they are jointly sponsored meetings in which we reach out and interact with the engineering communities of OSA and IEEE. Many of these attendees are not members of APS and are attracted to our sessions at these meetings. If we serve their needs they will soon be new members of DLS. Even within APS there is a very large group which is getting more and more into laser science, and that is the condensed matter community. At the APS March Meeting this year, DLS sponsored a session organized by Steve Cundiff and Nicholas Vamivakas on the topic of quantum optics in condensed matter. Nick is organizing another symposium on this topic at FiO/LS 2012 in Rochester, New York. With this sort of initiative, we can make DLS meetings the home of this growing new research area.
Of course, another way to be sure that we remain at the forefront of the field is to attract and serve young scientists. We have several programs that reach out to those just entering our field or who might enter it in the near future. We sponsor the New Laser Scientist Conference in which new university and college faculty members come together to present their research and network with their cohort and with program officers from various funding agencies. The 7th NLSC will be coordinated by Dan Stamper-Kurn. It will take place in conjunction with the 2012 FiO/LS meeting. We also sponsor the Undergraduate Research Symposium every year at FiO/LS, a program ably, nay nobly, run for several years by Hal Metcalf. Every year this symposium attracts about 40 undergraduates to present their first conference paper and get excited about a career in laser science. We reach out to even more undergraduates and even high school students through our Distinguished Traveling Lecturer Program in which one of a group of lecturers goes out to spend two days visiting a physics program at an undergraduate college, giving a series of technical and public general interest lectures. Often the public lectures associated with these visits attract one to three hundred people to hear about the exciting things going on in laser science. Rainer Grobe has done an excellent job of running this program for several years.
I am honored to serve as the Chair of DLS this year. The range of activities and the energy of the Division officers and volunteers has really impressed me. I hope that I have conveyed my enthusiasm for the promising future of the field and the daunting task of keeping up with it. We can only do it with dedicated volunteers to organize conference sessions and symposia as well as serve on committees and as officers. Please send along your suggestions, and let us know that you are willing to help.
Chair, APS Division of Laser Science
Congratulations to the recently elected members of the Division of Laser Science Executive Committee! As of the DLS election in October 2011, Randy Bartels and Gregory Engel join the Executive Committee as members-at-large. They will serve through the close of the 2014 Laser Science meeting. In addition, Antoinette Taylor was elected Vice-Chair of the Division. She will serve for one year in that office and then move up to the Chair-Elect position. Anne Kelley was re-elected to another three-year term as Secretary / Treasurer. Many thanks go to all of the candidates who agreed to be nominated and to the members who participated in the election, as well as to the outgoing officers of the division.
Including the newly elected officers, the current members of the DLS Executive Committee are as follows:
University of Rochester
University of Colorado at Boulder
Los Alamos National Laboratory
JILA, NIST and University of Colorado
Secretary / Treasurer
University of California – Merced
Univ. of Maryland - Baltimore County
University of Pisa
University of Michigan - Ann Arbor
Western Michigan University
California Institute of Technology
Colorado State University
University of Chicago
Amy VanEngen Spivey
University of Puget Sound
Congratulations to the 2012 recipient of the Arthur Schawlow Prize: Michael Fayer of Stanford University! Dr. Fayer is the David Mulvane Ehrsam and Edward Curtis Franklin Professor of Chemistry at Stanford University. According to the APS web site, he is being recognized “for seminal contributions to laser science in the development of ultrafast nonlinear and multidimensional vibrational spectroscopy.”
(from Anne Kelley, DLS Secretary/Treasurer)
Due to the weak return on investments over the last few years, the endowment for the Schawlow Prize has dropped below the level needed to be self-sustaining. Accordingly, members of the Division are being asked to consider making donations to the Schawlow Prize fund. Thus far (through 2011) $2675 has been raised, which is being matched dollar for dollar by a group of former prize winners as well as family members and associates of Arthur Schawlow. This is an excellent start, but further donations are still needed to address the shortfall.
To contribute, please go to the APS website. At the right, there is a link entitled "Contribute Online". If you follow it, you can check a box to select the Schawlow Prize endowment as the recipient of your contributions.
The 2010 LaserFest celebration brought together organizations from around the world to celebrate the 50th anniversary of the invention of the laser. One of the outcomes of LaserFest was the development of the LaserFest web site. Thanks to ongoing support from the sponsoring organizations, the LaserFest web site will continue to be updated and maintained over the next few years. Some features of the site that could be incorporated into teaching, outreach, or other activities include the following:
(photos and information courtesy the Optical Society and Harold Metcalf)
Laser Science XXVII, the annual meeting of the American Physical Society (APS) Division of Laser Science (DLS), was held in San Jose, California, on October 16 - 20, 2011. As in years past, the Laser Science meeting was co-located with the Frontiers in Optics conference organized by the Optical Society of America (OSA). The joint conference featured five days of cutting-edge research presentations, powerful networking opportunities, and engaging educational programs.
Headlining the Plenary and Awards Session at FiO/LS were four optics luminaries speaking on a range of topics. Ferenc Krausz of Ludwig-Maximilian's University in Germany spoke on the latest developments in attosecond science. Sir John Pendry of Imperial College London spoke on sub-wavelength optics and the idea of a "perfect lens." Ivan Kaminow, winner of the Optical Society’s Frederic Ives Medal/Jarus W. Quinn Endowment, gave an interesting look at the early days of lightwave communications, and Jorge Rocca, winner of the APS Division of Laser Science Arthur L. Schawlow Prize, discussed current efforts in compact soft x-ray laser research.
This year’s conference featured more than 850 technical presentations on topics ranging from digital holography and optical microfabrication to optical signal processing and metamaterials. World-renowned researchers spoke about the world's first temporal cloak, a novel way to tag brain tumors with gold nanoparticles, using the nanostructures of bird feathers to develop lasers, and transforming an iPhone into a high-quality medical imaging device.
The Symposium on Undergraduate Research was another highlight of the FiO/LS meeting. This year, more than 40 undergraduate students from around the country presented posters or gave talks about their work. The symposium began at noon on Monday, Oct. 17, with participants meeting over lunch with FiO/LS plenary speakers Professor Sir John Pendry and Professor Ferenc Krausz. Lunch was followed by the poster session and two consecutive oral sessions as well as a dinner. The detailed symposium program can be found here. The 2011 symposium was sponsored by the Division of Laser Science of the American Physical Society, the Optical Society of America, the National Science Foundation, East Coast Optical Technologies, Thorlabs, Fibertek, and Photonics Industries International.
APS March Meeting
Dates: February 27 – March 2, 2012
Location: Boston Convention Center, Boston, Massachusetts, USA
This year at the March Meeting, in addition to sessions related to lasers and optical physics organized by other APS divisions and forums, the Division of Laser Science sponsored an invited session (L10) entitled “Quantum Optics in Condensed Matter” on Tuesday afternoon, Feb. 28. More details about this session can be found here.
CLEO: 2012 (Conference on Lasers and Electro-optics)
Dates: May 6 - 11, 2012
Location: San Jose Convention Center, San Jose, California
Abstract submission deadline: December 5, 2011
Advance registration deadline: March 19, 2012
CLEO is co-sponsored by the APS Division of Laser Science, the Optical Society, and the IEEE Photonics Society. Highlights of CLEO: 2012 will include plenary sessions, short courses, tutorials, and poster sessions, as well as:
The plenary speakers (and their talk titles) for CLEO: 2012 will be:
Dr. Robert Boyd, University of Ottawa, Canada - “Nonlinear optics: past successes and future challenges”
Dr. Steven DenBaars, University of California at Santa Barbara – “Development of nonpolar and semipolar InGaN/GaN light-emitting diodes (LEDs) and laser diodes”
Dr. Mathias Fink, Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI), France – “Time-reversed waves and subwavelength focusing”
Dr. Yurii Vlasov, IBM T.J. Watson Research Center, USA, “Silicon integrated nanophotonics: road from scientific explorations to practical applications”
CLEO: 2012 will feature a number of symposia on special topics, including:
Travel grants from the APS Division of Laser Science are available for students planning to attend CLEO: 2012. See the details below.
Workshop on Super-Intense Laser-Atom Physics (SILAP)
Dates: September 23-25, 2012
Location: Suzhou city, Jiangsu, China
Abstract submission deadline: July 1, 2012
Abstract acceptance notification: July 15, 2012
Early registration deadline: August 1, 2012
This workshop will be organized by Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences. Prior meetings of this conference series have been held in Rochester (1989), Big Sky (1991), Belgium (1993), Volga River (1995), Washington DC (1999), Han-sur-Lesse (2000), Dallas (2003), Salamanca (2006) and Zion National Park (2009).
Frontiers in Optics 2012 and Laser Science XXVIII (FiO/LS)
Dates: October 14-18, 2012
Location: Rochester, New York, USA
Abstract submission deadline: May 15, 2012
Program chairs: David Villeneuve (National Research Council of Canada) and Philippe Fauchet (University of Rochester)
This conference serves as the annual meeting of the APS Division of Laser Science and is co-located with the Optical Society’s Frontiers in Optics conference. More details will be forthcoming.
(application deadline: April 1, 2012)
We are now accepting applications for student travel grants to assist with travel costs to CLEO:2012 in San Jose, CA, May 6-11, 2012. The deadline for receipt of complete applications is April 1, 2012.
Through this program, DLS will provide partial funding (up to $500) for a limited number of graduate students to attend and participate in the CLEO:2012 conference. To be eligible, an applicant must be a full-time graduate student, a member of the Division of Laser Science, and the presenting author on an oral or poster paper. Normally, the recommending faculty mentor must also be a member of DLS. For further information and application forms, please see the DLS website here.
(application deadline: April 1, 2012)
Grants of up to $300 are available to assist DLS members who are bringing children to CLEO:2012 (May 6-11, 2012, San Jose, CA) or who incur extra expenses in leaving them at home (e.g., extra daycare or babysitting services). Eligible costs include babysitters (onsite at the conference location or at home) and airfare/hotel for a caregiver to accompany the child to the conference location. Meals, toys, onsite transportation and tickets to museums or other attractions are not eligible for reimbursement. Grant recipients are solely responsible for their choice of child care provider, and the APS Division of Laser Science does not endorse any child care providers.
Applications must be received by April 1, 2012. For further information and an application form, please see the DLS web site here.
Congratulations to the following members of the Division of Laser Science who were named Fellows of the American Physical Society in 2011! These people were nominated through the Division of Laser Science.
Alexander Balandin (University of California, Riverside)
Citation: For pioneering optothermal studies of phonon transport in graphene and outstanding contributions to investigation of spatially confined phonons and excitons in semiconductor nanostructures.
Andrea Cavalleri (Oxford University)
Citation: For pioneer advances in the understanding of the ultrafast dynamics of strongly correlated electron materials using ultrafast lasers and x-ray pulses.
Peter Delfyett (University of Central Florida)
Citation: For pioneering contributions to the understanding of the physics and implementation of ultrafast diode lasers.
Thomas Elsaesser (Max Born Institute, Berlin)
Citation: For contributions to ultrafast phenomena in condensed matter, including generation and application of ultrashort pulses from THz to hard x-rays, combining ultrafast techniques with optical near-field methods and x-ray diffraction, nonequilibrium dynamics of elementary excitations in solids, and ultrafast processes in molecular systems.
Mark Kuzyk (Washington State University)
Citation: For outstanding contributions to the development of an understanding of the origins of the nonlinear optical response and applying this understanding to the development of novel organic nonlinear optical materials.
Colin McKinstrie (Alcatel-Lucent / Bell Laboratories)
Citation: For diverse contributions to laser science, ranging from relativistic laser-plasma interactions to nonlinear and quantum optics in fibers.
Eric Van Stryland (University of Central Florida)
Citation: For seminal contributions to the measurement, understanding and application of optical nonlinearities.
George Wong (University of Science & Technology, Hong Kong)
Citation: For his seminal contributions to discoveries of new optical materials for lasers, nonlinear optics and optical detectors.
Congratulations to the following members of the Division of Laser Science who were named Fellows of the American Physical Society in 2011! These people were nominated through other APS divisions.
Mette B. Gaarde (Louisiana State University)
Citation: For important contributions to the macroscopic theory of high harmonic generation and attosecond light formation.
Nominated by: Division of Atomic, Molecular & Optical Physics
Christopher Gerry (CUNY Lehman College)
Citation: For pioneering work in quantum optical interferometry using photon number parity measurements, quantum state engineering for superpositions of macroscopically distinguishable states, and application of group theoretical methods to quantum optics.
Nominated by: Division of Atomic, Molecular & Optical Physics
Johann Rafelski (University of Arizona)
Citation: For path-breaking research on the properties of hot, dense hadronic matter, especially strangeness enhancement in the search for quark deconfinement, and seminal research into the vacuum state in supercritical fields.
Nominated by: Division of Nuclear Physics
Barry Walker (University of Delaware)
Citation: For investigations of multiple ionization in the non-relativistic and relativistic regimes that have contributed to the understanding of intense laser-atom interactions.
Nominated by: Division of Atomic, Molecular & Optical Physics
Howard Wiseman (Griffith University)
Citation: For his seminal contributions to the quantum theory of measurement, particularly to the formulation of continuous measurement, feedback, and control.
Nominated by: Topical Group on Quantum Information
Shiyao Zhu (Hong Kong Baptist University)
Citation: For pioneering contributions in quantum optics, particularly work on spontaneous noise quenching and lasing without inversion, and for championing Chinese-American collaborations in quantum optics and physics in general.
Nominated by: Division of Atomic, Molecular & Optical Physics
(next deadline: April 2)
(from Anne Meyers Kelley, DLS Secretary / Treasurer)
I would like to encourage you to nominate deserving DLS members for Fellowship in the APS. Fellowship is a distinct honor signifying recognition by one's professional peers. The next deadline for nominations is April 2, 2012.
Information on the nominating process can be found on the Fellowships portion of the APS web page. If you are not sure whether a potential nominee is already a Fellow or whether they are a DLS member, you can check the APS member directory on the APS web site by selecting “Member Directory” under the “Membership” tab. Alternatively, you can find a membership list for each APS unit, with Fellows noted as such, here.
(next deadline: July 1, 2012)
The Arthur L. Schawlow Prize in Laser Science is sponsored by the Division of Laser Science. It recognizes outstanding contributions to basic research which uses lasers to advance our knowledge of the fundamental physical properties of materials and their interaction with light. Nominations are open to candidates who have made outstanding contributions to basic research using lasers. To nominate a colleague for the 2013 Schawlow Prize, please refer to the nomination guidelines found here.
The International Travel Grant Award Program (ITGAP) was established by APS to promote international scientific collaborations between members of “participating” APS Divisions, including the Division of Laser Science, and physicists in developing countries. Grant recipients receive up to $2,000 for travel and lodging expenses for international travel while visiting a collaborator for at least one month.
For further information and application instructions, please see the ITGAP web site here. The most recent application deadline was January 17, 2012, and awards are made on 6-month competitive cycles.
(next deadline for proposals: May 30, 2012)
The Distinguished Traveling Lecturer (DTL) Program is sponsored by the DLS, and its goal is to bring distinguished scientists to speak at colleges and departments that might not otherwise have the resources to invite them. The program covers the speaker’s honorarium and travel expenses, while the host institution is responsible for the speaker’s local expenses. Application deadlines occur on May 30 and November 30 each year. The current distinguished lecturers are:
Laurie Butler (University of Chicago)
Hui Cao (Yale University)
Eric Cornell (University of Colorado and NIST)
Fleming Crim (University of Wisconsin)
Jim Kafka (Spectra-Physics / Newport)
Chris Monroe (University of Maryland)
Luis Orozco (University of Maryland)
Carlos Stroud (University of Rochester)
Ron Walsworth (Harvard University)
Linda Young (Argonne National Laboratory)
Santa Cruz Room, Hotel St. Claire, San Jose, CA
October 18, 2011
Present: Steve Cundiff (chair), Carlos Stroud (chair-elect), Henry Kapteyn (vice-chair), Warren Warren (past chair), Anne Kelley (secretary-treasurer), Anthony Johnson (councilor), David Reitze (member-at-large), Maria Allegrini (member-at-large), Amy VanEngen Spivey (newsletter editor).
Steve Cundiff called the meeting to order at 9:15 am.
The minutes from the last Executive Committee meeting at CLEO/QELS were approved.
Anne Kelley presented a treasurer’s report. The Division’s net assets have held relatively flat over the past few years following an earlier period of rapid growth when CLEO brought in more revenue and our return on investments was much higher. The APS ledger for the Schawlow prize shows investment income but no new contributions. Henry Kapteyn has convinced some previous winners and others to pledge matching funds, but apparently nothing has been contributed yet for them to match. Steve volunteered to send an e-mail to members suggesting contributions of $50 to the Schawlow prize fund.
Anne reported on the Student Travel Grant and Child Care Grant programs. 13 applications were received for the student grants, of which ten were funded at $500 each; the three not funded either did not meet the stated criteria or, in one case, was from a research group already receiving two other grants. There was discussion about whether more than one grant should be made to a single research group. The consensus was that this should be allowed, but priority should be given to a single applicant per group. Also, the advisor should be required to be an APS member unless he is from outside the U.S. Only one application was received for the child care grant program, but it is hoped that more will be received once the program becomes better established. The committee voted to allocate $5000 per meeting (CLEO and FiO/LS) for the student travel grant program for next year, and $1200 total for both meetings for the child care grant program.
Anne reported on the DLS elections. The voting period closes on Friday, Oct. 21. Because Anne is running for re-election, Steve will tally and report the votes.
A request from 2012 chair Dan Stamper-Kurn for funding for 2012 New Laser Scientists Conference (Rochester) was discussed. The committee voted to approve $5000 for expenses associated with the New Laser Scientists meeting.
Steve and Warren Warren led a discussion of CLEO and its future including a rather detailed report from CLEO Steering representative Dan Heinzen. The negotiations accompanying renewal of the CLEO management contract with OSA, with Kate Kirby negotiating on our behalf, resulted in a contract that is a considerable improvement. The new contract more closely ties the management fee to conference revenue, making it less likely that the meeting will go into the red. The 2015 meeting has been moved from Baltimore to San Jose so as not to compete so directly with Lasers Munich. There was a brief discussion about the diversity of the program committee, and the small number of women was identified as an issue.
Hal Metcalf reported on the Symposium on Undergraduate Research, which took place Sunday night and Monday. The symposium continues to be a great success and the number of participants continues to grow, now into the mid-40s. The whole event costs $30K-$40K, but much of the cost is offset by grants ($7K from NSF, $5K from industry) and by the students’ institutions paying travel costs, so typically the cost to DLS has been only about $5K. However, this year the cost to DLS will likely be higher because of the increase in the student registration fee from $165 to $200. The committee voted to allocate $8000 for the Symposium on Undergraduate Research in conjunction with FiO/LS in Rochester next year.
John Dudley (European Physical Society) gave an update on the International Year of Light. Only the UN General Assembly can declare an “International Year” of anything, and a long planning horizon is required. The proposed IYL will be 2015. There are four themes: Science of Light, Tools for the Future, Pioneers of Light, and Light for Development. It involves outreach and educational activities at international, national, and local levels for each theme. Serious planning starts next year, with an expected budget of $15M-$20M globally. The committee voted to add the DLS name to one of the statements of support already provided by another society.
Chad Stark (OSA meetings manager) and Liz Rogan (OSA CEO) joined the committee for a discussion of Laser Science 2011 and beyond. The numbers of contributed papers for both LS and FiO are about the same as they were in San Jose in 2009. Chad provided some other statistics indicating that the meeting is roughly holding even. There were some issues related to staff performance this year that caused problems in conference organization, but most of these appear to have been corrected prior to the meeting. Future sites are Rochester 2012, Orlando 2013, Tucson 2014, and San Jose 2015. Student registration fees were discussed, and Chad agreed to consider a lower fee for undergrads, possibly just for those in the symposium because student IDs may not distinguish graduate students from undergrads. The lack of signage (e.g. badge ribbons) for designating APS Fellows, award winners, etc. at FiO/LS was discussed. OSA agreed to ask us what we want in this regard prior to the next meeting.
The program chairs have been appointed for the 2012 Laser Science conference: David Villeneuve (NRCC) and Philippe Fauchet (Rochester). In general, LS has suffered from lack of continuity in getting chairs appointed early enough. It was proposed that each year’s chairs be asked to stay on for 3 years so that there would be a rolling 6-person committee to advise on the program. Another suggestion was to name the chairs for 2013 very soon, and the 2014 chairs next summer, so both sets of chairs could participate in program planning. It was left to Carlos and Henry to decide. The committee voted to allocate $12,000 for Laser Science 2012, to be used by the program chairs for registration fee remission and/or travel support.
Anne received an inquiry from a Japanese member about DLS promotional materials that he might give away at an event. Several possibilities for promotional materials in general were discussed, including pens or laser pointers on a keychain. It was also pointed out that OSA members who do not belong to APS may be our best potential source of new members and that the CLEO and OSA bags should at least include some promotional materials with information about membership, even if just a photocopied sheet. Steve will contact Kate Kirby about help with obtaining materials as well as possible cost-sharing with APS.
A written report from Paul Berman on the APS International Travel Grant Program was discussed. DLS is currently supporting this program, which allows us to have a member on the selection committee. It was decided that we should send information on this program to Amy for inclusion in the Newsletter, and also send out a general e-mail to DLS members soliciting nominations.
Steve filled in the committee on March meeting participation. DLS is listed as a sponsoring division, but had done nothing for several years. A new person at APS, Christine Lenihan, is our contact for March meeting programming. This year Steve, Carlos, and Nick Vamivakas (Rochester) put together an all-invited session with five speakers for upcoming March meeting. We need to tell Christine each year who is the DLS contact person, normally the chair-elect, and she will get in touch with that person about programming. The number of sessions we’re allocated is determined by the number of DLS members who attend.
APS President-Elect Bob Byer visited with the committee regarding the ongoing APS long-range strategic planning process. Three main components are being examined: publications, meetings, and “member services”. Open-access laws that could jeopardize the peer-reviewed publication structure are being addressed by providing access to journals through local libraries and high schools. There is discussion of decoupling the annual APS convocation from Congressional Day to make it more useful as an orientation for the new group of unit leaders. There was considerable discussion of making APS more international by offering cross memberships with other societies and inviting more international members to participate in the APS leadership. APS sees a need to build up its meetings department so it can do the money management it’s legally required to do and provide needed services without getting too expensive.
A request from Gordon Drake to suggest new members for the Phys. Rev. A editorial board was discussed. A number of names were suggested; they will be forwarded by Steve.
The Newsletter format and timing were discussed. The main suggestion was that the e-mail informing members of the availability of the Newsletter should contain headers of all the sections and some brief information about what’s in it, to make people more inclined to read it.
Steve summarized the status of next year’s committees. The Schawlow committee will consist of Jorge Rocca (this year’s winner), Frank Wise (chair), and three others to be named. The Fellowship committee will be the newly elected vice-chair, Henry, Nancy Levinger, Fred Raab, and one more person to be named. For the Nominating committee, we appoint two members and APS nominally appoints the third member, but they may ask us for suggestions.
There was a brief discussion of offering the option of remote participation via teleconference or Skype for future EC meetings. Anne will look into this.
The meeting was adjourned at 3:45 pm.
The articles in this newsletter represent the views of their author(s) and are not necessarily those of the Unit or APS.