From: YAGHC@CUNYVM.BITNET
Newsgroups: misc.jobs.resumes
Subject: position needed for optics, laser and electrical engineering
Date: 10 Dec 92 01:50:27 GMT
Organization: City University of New York/ University Computer Center

I am graduate student major in semiconductor laser optics and physics.
I expected to graduate with a Ph.D degree in May of 1993. I have extensive
background in Optics, electronics and computer programming and modeling.
willing to relocate.
Gang Yao
79-20 Calamus Ave.
Elmhurst, NY 11373

Telephone:
(718) 507-9782
(212) 772-5249

Fax:
(212) 772-5390

E-Mail:
yaghc@cunyvm.cuny.edu
ygagc@cunyvm.cuny.edu


OBJECTIVE
               Career in Medical Physics

EDUCATION:

1989- Present  Ph.D.  in Applied Physics (expected in 1993)
               (Semiconductor Laser Optics)
               The City University of New York, Graduate School
1986-1988      M.S. in Applied Physics (December, 1988)
               Hunter College, City University of New York
1985-1986      Advanced Intensive English Training
               Shanghai Foreign Language Training  Center,
               Shanghai, China
1978-1982      B.S. in Applied Physics and Education (July, 1982)
               Tsinghua University, Beijin, China

RESEARCH  EXPERIENCE:



1989-Present   Research Assistant
               City University of New York, Hunter College
               Department of Physics, Semiconductor Laser Optics
               Lab

          *    Injection locking of a semiconductor by  phase
               conjugation mirror
          *    Carrier life time study of  single quantum well
               GaAs-AlGaAs lasers
               under high level excitation
          *    Noise correlation study of two electrical coupled
               semiconductor lasers
          *    Additive mode locking of semiconductor by using
               linear extended cavity
          *    Excess noise study in unstable resonator lasers
          *    Computer modeling of external cavity of
               semiconductor laser with strong feed back
               optical modes of unstable resonator
          *    Interface programming (a Data Translation Board for
               PC)

1982-1986      Tianjin Textile Engineering Institute

          *    Optical System Design for Precision Measurement
               (A project of conducted by CO-departments of Physics

               and  Mechanical Engineering).




TEACHING   EXPERIENCE:

1986-Present        Teaching Instructor and Research Assistant
                    Department of Physics and Astronomy
                    Hunter College, City University of  New York

                    Courses Taught:
            *       "Classical Mechanics and Thermodynamics"
                    (Physics 110 and 111, Lecture)
            *       "Electricity and Magnetism Theory, Optics,
                    Introduction of Modern Physics"
                    (Physics 120 and 121, Lecture)

1982-1986      Teaching Instructor and Research Assistant
               Coordinator of Undergraduat Physics Laborotary
               Tianjin Textile Engineering Institute, Tianjin,
               China

            *  Design and development of eight undergraduate
experimnts
               in optics, electiity and magnitism
               Courses Taught:
            *  "Classical Mechanics and Thermodynamics"
            *  "Electricity and Magnetism Theory, Optics,
               Introduction of Modern Physics "
            *  "Electronics Circuit"
            *  "Applied Optics"
            *  "Calculus I and II"

(Teaching duties include full responsibility of  Class Lecture and
Laboratory Instruction)


COMPUTER   KNOWLEDGE:

          *    Operating Systems
               VM/CMS Operating System
               PC/DOS Operating System.
          *    Languages
               BASIC, FORTRAN, C and PASCAL
          *    General knowledge of  PC applications
               Word Processing, Graphing and Database.

PUBLICATIONS:

          *    "Carrier recombination rate in GaAs-AlGaAs
               single quantum well laser under high level
               excitation"
               Applied Physics Letter, 56 (21),1990
               P. Wang, K. K. Lee, G. Yao and Y. C. Chen

          *    "Excess spontaneous emission in unstable resonator
               lasers"
               Optics Letters, Vol.17, Sept.1, 1992
               G. Yao,Y. C. Chen, C. M. Harding, S. M. Sherrick, R.
               J. Dalby R.G. Water, C. Largent


CONFERENCE PRESENTATION:

          *    Optical Society of American Annual Meeting
               Sept. 20-25, 1992,  Albuquerqe, New Mexico
               "Excess Spontaneous Emission Factor in Unstable
               Resonator Lasers"

          *    IEEE Lasers and Electro-Optics Society Annual
               Meeting Nov. 16-19, 1992, Boston, MA
               "Excess Spontaneous Emission Factor in Unstable
               Resonator Lasers"

MEMBERSHIP:

          *    Optical Society of American
          *    Institue of Electrical and Electronics Engineers


AWARDS:
               City University of  New York
          *    University Fellowships (1990-1991, 1988-1989,
               1987-1988)
          *    University Tuition Fellowships(19890-1991,
               1987-1988)

               Tianjin Textile Engineering Institue
          *    Outstanding young teacher award (1983-1984,
               1984,1985)

               Tsinghua University
          *    Excellent Student Fellowships (1980-1981)


(References available upon request.)




DESCRIPTION OF MAJOR RESEARCH ACTIVITIES


*    The carrier recombination rate in GaAS-AlGaAs single quantum
well lasers is investigated using a small-signal technique for
carrier densities from 10^17to10^19/cm^3.. The experimental data
indicate that the runaway increase of the threshold current with
decreasing cavity length commonly observed in the short-cavity
lasers is mainly due to the loss of carrier confinement at high
carrier densities rather than due to fast carrier-depleting
process.


*    Measurement of excess spontaneous emission factor in
unstable-resonator semiconductor laser. Spontaneous emission
enhancement factor of an unstable resonator is experimentally
studied. This enhancement factor is found 500 times larger in
unstable resonator than Fabry-Perot resonator  with same dimension.
The linkage between the enhancement factor, laser dynamical
behavior and laser spectral properties has been discovered. Thermal
wave-guiding effects on the enhancement factor is also
observed.

*    Additive mode locking of semiconductor by using linearcavity:
The possibility of additive mode locking a extended-cavity laser is
studed. The main cavity is composed by a semiconductor gain the AR
facet of the gain medium. The mode locking process makes use
modulation by feed-back signal and the intrinsic frequency chirping
caused by the coupling between the phase and the amplitude of the
laser field. The feed-back signal comes from a Fabry-Perot linear
cavity which is matched to the main laser cavity in length.


Laboratory Experiences:

     Optical system design, optics alignment
     General electrical circuits
     Computer programming, data analysis

     Semiconductor quantum well lasers
     Nd: YAG laser, He-Ne laser
     Oscilloscope,  fast speed sampling unit
     Broad-band signal amplifier, power amplifier
     Fast speed solid-state detector, detector arrays
     Auto-correlator for short pulse measuring
     Photo-multiplier, lock-in amplifier
     Pulse generators
     Spectrometer, interferometers, spectral analyzer
     Digital camera, boxcar
     Fibers, fiber couplers, and general optics components
     PC interface board, data translation board