************************************ * QUANTUM OPTICS AND ATOM OPTICS * * IN AUSTRALASIA * * * * * * * * MONTHLY NEWSLETTER * * VOL VII, NO 4 * * * * April 1998 * * * * ISSN 1325-6467 * * * Edited by: Bill Munro * \ | / * Physics, University of Queensland, * \__|__/ * QLD 4072, Australia. * | * email: billm@physics.uq.edu.au * | * phone: +61 7 3365 2422 * | * fax: +61 7 3365 1242 Available on WWW at: http://www.physics.uq.edu.au/people/billm/qo.html ------------------------------------------------------------------------------ CONTENTS 0. PROBLEMS 1. ABSTRACTS 2. CONFERENCE ANNOUNCEMENTS 3. WANTED TO BUY/SELL 4. SITUATIONS VACANT 5. MISC NEWS ______________________________________________________________________________ ******************************************************************************* 0. EDITORIAL NOTE Welcome to the fourth newsletter of the new year. Please keep sending the abstracts in. ******************************************************************************* 1. ABSTRACTS "Sharp edged silicon structures generated using atom lithography with metastable helium atoms" W. Lu, K.G.H. Baldwin, M.D. Hoogerland, S.J. Buckman, T.J. Senden, T.E. Sheridan and R.W. Boswell, Published in J. Vac. Sci. Technol. 16 (6), 3846 - 3849 (1998). Research School of Physical Sciences and Engineering, Australian National University, Canberra, ACT 0200, Australia Abstract By combining atom lithography and plasma etching technology in a two step process, we demonstrate the transfer of sharp edged structures into silicon with a depth of 580 nm and an inclination of better than 86 degrees. A Self-Assembled Monolayer (SAM) resist deposited on a Au coated Si surface is damaged by a beam of metastable helium atoms through a physical mask. A wet etching process removes the Au in the damaged regions, resulting in an intermediate mask of patterned Au on Si. Low pressure plasma etching is then used to transfer the pattern of the Au mask into the Si. This plasma etching process shows a selectivity greater than 19 with respect to the Au mask. ______________________________________________________________________________ Title: Phase shifts in multilayer dielectric beamsplitters Author:MW Hamilton Address: Department of Physics and Mathematical Physics University of Adelaide Adelaide SA 5005 Sth Australia email mwh@physics.adelaide.edu.au Journal: American Journal of Physics Status: submitted Abstract: Some properties of the reflectivity and transmissivity of multilayer dielectric optical coatings are derived from energy conservation applied to a beam splitter acting as a beam combiner. It is shown that dispersion in the phase shifts of the beamsplitter coatings influences which quadrature is measured in a homodyne detector, and, in a Michelson interferometer, how the white-light fringe pattern is disposed about the zero-path-difference condition. The functions of reflectivity and transmissivity that determine these properties are shown not to be completely constrained by considerations of energy conservation and time reversibility, in contrast to commonly employed models for beam splitter reflectivity and transmissivity. Some representative beamsplitter coating designs are used to illustrate this point. ******************************************************************************* 2. CONFERENCES / WORKSHOPS FIRST ANNOUNCEMENT *********************** Bose-Einstein Condensation: atomic physics to quantum liquids. The ANU 13th Physics Summer School. January 17-28, 2000 A two week school aimed at PhD students. Contact: Craig Savage, Physics, Faculties, ANU, ACT 0200 http://rsphysse.anu.edu.au/~ss0105/ss2000.html ****************************************************************************** 4. SITUATIONS VACANT POSTDOCTORAL FELLOWSHIP IN THEORETICAL CONDENSED MATTER PHYSICS. ADVERTISEMENT A vacancy exists for a Research Associate, to work with Professor G.J. Milburn on the project "Strongly coupled mesoscopic electronic systems for quantum computation" . The project will form part of a collaboration with the Semiconductor Nanofabrication Facility at the University of New South Wales to fabricate a solid state nuclear spin, quantum computer. The successful applicant must have a PhD in theoretical condensed matter physics with particular skills in the theory of mesoscopic electronics, or postdoctoral experience in this area. Salary is in the range A$41,199 - A$42,769. Appointment will be for an initial period of two years with a possible extension for a further two years. Applications, with two letters of reference, should be sent to Professor G.J. Milburn, Centre for Laser Science, The University of Queensland, St Lucia 4067, by May 1. Further details, including selection criteria, may be obtained from milburn@physics.uq.edu.au. SELECTION CRITERIA. The successful applicant must have - A PhD in theoretical condensed matter physics or a related field. - Demonstrated research record in mesoscopic electronics including the following: quantum transport, many-body fermionic systems, single electronics, Landauer-Buttiker theory, quantum dots. - A good publication record in these or related areas. A record of successful collaboration with experimentalists is desirable but not essential. DUTY STATEMENT. The successful applicant will - work under the supervision of Professor Gerard Milburn in support of the project to investigate mesoscopic quantum systems and coupled quantum dots for quantum computing. The project involves a collaboration between The University of Queensland, The University of New South Wales (Sydney) and The University of Melbourne. Travel between Brisbane and Sydney will be required. - be a member of the Centre for Laser Science in the Department of Physics at the university of Queensland and will be expected to participate in the supervision of postgraduate students in the centre. - be expected to give regular seminars on his/her research. Contact Details: Gerard J. Milburn Head, Department of Physics Director, Centre for Laser Science. The University of Queensland St Lucia 4072 Australia TEL: +61-(0)7-33653405 FAX: +61-(0)7-33651242 EMAIL: milburn@physics.uq.edu.au WWW: http://www.physics.uq.edu.au/people/milburn/ _________________________________________________________________________ The Australian National University Institute of Advanced Studies Research School of Physical Sciences and Engineering Atomic and Molecular Physics Laboratories Experimental Atom Optics/Atomic Physics Research Fellow/Fellow (Level B/Level C - Fixed Term Applications are invited for a Research Fellowship within the Atom Manipulation Project of the Atomic and Molecular Physics Laboratories, Research School of Physical Sciences and Engineering.Ê The position is for an experimentalist who can make major contributions to the DepartmentÕs experimental activities based on the laser control of metastable helium atoms for experiments in atom optics and atomic collision physics.Ê The research program is centred around a "bright" metastable helium beam line and atom trap facility.Ê Experiments are conducted in a range of fields including atom lithography, atom waveguides, atom-atom and electron-atom collisions and atomic spectroscopy. The applicant would be expected to assume the day-to-day responsibilities for the operation of the beam line and associated experiments as well as providing high level input to the scientific direction of the project and supervision of research students.Ê A preference will be given to applicants with specific experience in laser cooling and trapping techniques and experience in several of the other project fields would be a distinct advantage. The successful applicant can take up appointment in September 1999. Appointment: Fixed term contract for five years. Enquiries:Ê Dr Stephen Buckman, Head, Atomic and Molecular Physics Laboratories, Tel: (02) 6249 2484, Fax: (02) 6249 2452 or email: stephen.buckman@anu.edu.au or from Dr Kenneth Baldwin, email: Kenneth.Baldwin@anu.edu.au or Web site: http://rsphysse.anu.edu.au/ampl Contact:Ê Further particulars including selection criteria must be obtained before applying from Gayle Samuel, Tel: (02) 6249 5196, fax: (02) 6249 1884 or email Gayle.Samuel@rsphysse.anu.edu.au Salary: Research Fellow (Level B) $47,435 - $55,966pa Fellow (Level C) $57,671 - $66,204pa Closing date: 16 April 1999 Ref: PSE 1/99 Information on how to apply may be obtained from the ANU Web page Ð http://www.anu.edu.au/hr/jobs or by telephoning/emailing the contact. ______________________________________________________________________________ Post-doc position in experimental quantum computing/atom trapping. I have an opening for a post-doc position in my laboratory to work on an atom trapping and cavity QED experiment. The experiment will utilize atom cooling and trapping techniques to trap atoms inside a optical cavity using a dipole force trap. The quantum field of the cavity will then be used to generate atom-atom entanglements for quantum logic gates. We are in the final stages of building up this experiment, and the post-doc should be able to contribute to new results shortly. Direct experience in the atomic physics/quantum optics not required, but preference will be given to motivated candidates with strong technical and experimental background. One or two year position. Competitive salary. Georgia Tech is an equal opportunity employer. Send vitae and letters to Michael Chapman, School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430 or contact me at (404) 894-5223. Interested persons attending the APS Centennial meeting in Atlanta this month should contact me to arrange a lab visit. ______________________________________________________________________________ Postdoctoral Position in theoretical atomic physics at Georgia Tech. A postdoctoral position is available for a recent theory Ph.D to work on the physics of atomic Bose-Einstein condensation and trapped degenerate Fermi gases. Additional opportunity also exists to work on the problem of quantum computing in atomic systems. The candidate should have solid background in theoretical atomic physics and/or quantum optics. Preference will be given to motivated candidates with experience in laser cooling, atomic trapped systems, and low energy atomic collisions. Georgia Tech is an equal opportunity employer. Send vitae and letters to Li You, School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430 or contact me at (404) 894-2107. (Li.You@physics.gatech.edu). Interested persons attending the APS Centennial meeting in Atlanta this month should contact me to arrange a visit of my group. ______________________________________________________________________________ POSTDOCTORAL POSITIONS: Universitaet Konstanz, Germany (Academic) postdoctoral positions available in the following research directions: atom optics - quantum metrology - nano optics - polymer physics Contact details Web Page: http://quantum-optics.physik.uni-konstanz.de/ Applications with a full C.V. giving the names and addresses of two referees should be sent to: Contact Name: Professor J. Mlynek Fakultaet fuer Physik Universitaet Konstanz Fach M 695, D-78457 Konstanz Germany ______________________________________________________________________________ LECTURESHIPS IN APPLIED MATHEMATICS AND THEORETICAL PHYSICS The Queen146s University of Belfast, Belfast, UK (Academic) Salary scale for all posts (except where indicated) Lecturer Grade A: #16,656-#21,816 per annum with eligibility for USS. Assistance with relocation as appropriate. Investing in Excellence As part of a major programme of expansion, the University is supporting the School of Mathematics and Physics with a major investment of posts to enhance its research and teaching activities. The School, which achieved Grade 5 in the last Research Assessment Exercise, wishes to appoint people with a record of publication in quality, peer-reviewed journals, commensurate with age and experience. It is also looking for a lively and innovative teaching capability as part of the Universitys policy of balanced excellence. Lectureship in Applied Mathematics and Theoretical Physics (Ref: 99/137C) Required to lecture in applied mathematics and theoretical physics and to carry out and publish original research in Quantum Optics in the Theoretical and Computational Physics Research Division. Applicants must hold at least an upper second class honours degree, or equivalent primary qualification in mathematics /physics or contiguous area to enable the teaching of a range of applied mathematics and theoretical physics courses at all levels. Possession of a PhD in theoretical physics or contiguous subject is essential. A strong peer- reviewed research publication record in quantum optics commensurate with experience is essential. Postdoctoral experience in quantum optics research is desirable, as is teaching and lecturing experience at undergraduate and/or postgraduate level in applied mathematics and theoretical physics, including tutorials, problem classes and supervision. Committed to an Equal Opportunities policy and selection on merit the University welcomes applications from all sections of the community. Under its affirmative action programme it particularly welcomes applications from women for academic posts. Contact details Contact Name: Professor K. T. Taylor K.Taylor@qub.ac.uk Telephone:(01232) 335049 ______________________________________________________________________________ Photonics Research Opportunity The Optical Fibre Technology Centre, at the University of Sydney, is a leading partner in Australian Photonics Cooperative Research Centre and seeks candidates for the positions of Post-Doctoral Fellow / Research Fellow reporting to the technical director, Dr Simon Fleming. A new research project is commencing on gain flattened EDFAs based on a novel design using gratings and specialty fibre. The OFTC has state-of-the-art facilities for fabrication of gratings and specialty fibres and has active research projects in these and other fields. You will be joining a dynamic research group of approximately 30 people at OFTC and participating in one of the worldâs largest photonics research groups, The Australian Photonics CRC. This successful candidate will design and conduct experiments, analyse data, present reports and conduct specific research with minimal direction on optical fibre and fibre devices, especially amplifiers and/or gratings. Applicants should have a demonstrated knowledge of and experimental research experience in optical fibre and optical fibre devices, preferably including amplifiers and/or gratings. Furthermore, the successful candidate will have a demonstrated record of innovative research on fibre and fibre devices; knowledge of LabView and other programming languages such as Pascal; mathematical modelling techniques and some electronics. Other desirable skills and experience are the following: grating design and manufacture; modelling and experimental experience of long period gratings; knowledgeable about the properties of rare earths on gain flattening and control; optical signal processing; experimental experience in gain flattened erbium doped amplifiers; analysis and modelling of optical amplifiers or fibre lasers; analysis, handling, design and characterisation of application specific optical fibre; and theoretical knowledge of and experimental experience of lasers. The ability to think laterally to solve complex problems; to work to deadlines; to produce a wide range of clear and concise written documents; to use and develop [where required] a range of technical and other computer programs in a networked environment; and to manage small sub-projects without supervision is necessary. Candidates are expected to be team-players in a multidisciplinary group, work under minimal guidance and under pressure in an entrepreneurial environment. Good interpersonal communication skills, appropriate professional conduct, and willingness to contribute to the teaching program within the field of expertise are required. Essential qualifications are PhD in Photonics, Electrical Engineering or Physics and a record of publications in refereed international research journals, conference papers, and reports. Salary within the range: $ 42,869 - $57,523 p.a. All applications should be sent to: the Technical Director of the Optical Fibre Technology Centre Ð Australian Photonics CRC, University of Sydney Ð Dr Simon Fleming email: info@oftc.usyd.edu.au or telephone: +61 2 9351 1930, facsimile: +61 2 9351 1910 or mail address: Dr Simon Fleming, Technical Director, Optical Fibre Technology Centre, 101 National Innovation Centre, Australian Technology Park, Eveleigh, NSW 1430, Australia Deadline for applications: 6 April 1999 ****************************************************************************** 5. MISC NEWS Australian Postgraduate Award (Industry) in Optical Fibre Technology. Applications are invited for a new, full-time Australian Postgraduate Award (Industry) Ph.D. position. The position will be funded by ARC/DETYA for three years. The successful candidate will work on a project involving the modelling, drawing and characterisation of geometrically precise optical fibres at the Optical Fibre Technology Centre, University of Sydney. Collaboration will be with Redfern Fibres P/L and Nextrom Technologies of Finland. Applicants should have a good honours degree in engineering or the physical sciences and must be an Australian Citizen or permanent resident. The successful candidate will be expected to undertake the full range of scientific activity from theoretical modelling through to hands-on experimental work. For more information contact: Linda Shboul, Division Administrator, telephone: (02) 9351 1931; or fax: (02) 9351 1910; or email: info@oftc.usyd.edu.au. All applications including a CV and copies of transcripts must be submitted to the Division Administrator at the Optical Fibre Technology Centre, 101 National Innovation Centre, Australian Technology Park, Eveleigh NSW 1430, by the closing date. ******************************************************************************