His experience has been concentrated in three areas. The first is the development of new optical systems for scientific observations from system concept and specification through design, integration, and test. On the Wide-Field/Planetary Camera-II (WF/PC-II) for the Hubble Space Telescope (HST) he was responsible for assembly, alignment, and test. Duties included tolerancing, writing procedures, developing opto-mechanical tooling, designing and tolerancing of supporting optics (Stimulus, mini-stimulus, and autoreflectors), training optical technicians, and on-orbit alignment. He also designed, assembled, and tested an off-axis F/3 solar UV telescope and tracker, which is operating at Table Mountain Observatory. In addition, he has experience in system engineering and the design, analysis and tolerancing of optics for imaging and astrometric stellar interferometers, star tracker for a micro-spacecraft, panchromatic reconnaissance lenses, imaging spectrometers, a scanning astrometric telescope, apochromatic telephoto lens for mapping Venus, submillimeter telescope with segmented primary mirror, an objective for a holographic optical disk memory, and machine vision lenses for production quality control.
The second area of concentration is optics for lithography. He has four patents pending for illuminators for microlithography and has experience in the analysis and design of projection optics.
The third area of concentration is in development of polarization analysis in optical systems. Here he has conducted research in polarization aberrations in optical systems; extended polarization theory of rotationally symmetric systems to fourth order and to tilted and decentered systems; formulated Fourier optics for systems with polarization aberrations; and analyzed of the effect of polarization aberrations on optical transfer functions (OTF). He designed and toleranced a depolarizer to desensitize the Multi-angle Imaging Spectroradiometer (MISR), an Earth Observing Systems (EOS) instrument.
He also designed and supervised the implementation of procedures to qualify and calibrate photomultipler tubes and Nal (TI) crystals for flight on Burst and Transient Source Experiment (BATSE) on the Gamma Ray Observatory Satellite. |
| "Polarization Aberrations I: Rotationally Symmetric Optical Systems," (with R. Chipman), Applied Optics, Vol. 33, No. 22, 1994, p. 5080. |
| "Polarization Aberrations II: Tilted and Decentered Optical Systems," (with R. Chipman), Applied Optics, Vol. 33, No. 22, 1994, p. 5101. |
| "Optical Alignment and Ambient Test of Wide-Field/Planetary Camera-II," (with R. Korechoff), in Optical alignment IV, M. Ruda, Ed., SPIE, Vol. 1996, 1993. |
| "Tolerancing of the Wide-Field/Planetary Camera-II," (with R. P. Korechoff), in Quality and reliability of optical systems, J. W. Bilbro and R. E. Parks, Eds., SPIE Proc, 1993. |
| "Alignment of the second generation Wide-Field/Planetary Camera: Metrology of a highly aberrated system," (with R. P. Korechoff, S. A. Macenka, and J. M. Oseas), in Proc. of the Optical Fabrication and Testing Workshop, OSA. Tech. Digest, Vol. 24, 1992. |
| "Linear diattenuation of a front-side illuminated CCD," (with A. Deslis and S. T. Smith), in Polarization Analysis and Measurement, R. A. Chipman and D. H. Goldstein, Eds., SPIE Proc., Vol. 1746, 1992. |
| "Design of Wide-Field/Planetary Camera 2 for the Hubble Space Telescope," (with N. A. Page), in Space Optics for Astrophysics and Earth and Planetary Remote Sensing, OSA, Tech. Digest, Vol. 19, 1991. |
| "Diffraction image formation in optical systems with polarization aberrations II: Amplitude response matrices for rotationally symmetric systems," (with R. A. Chipman), JOSA, Vol. A8, 1990, p. 833. |
| "Diffraction image formation in optical systems with polarization aberrations I: Formulation and example," (with R. A. Chipman), JOSA., Vol. lA7, 1990, p. 1614. |
| "Analysis of spatial pseudodepolarizers in imaging systems," (with R. A. Chipman), Opt. Eng., Vol. 29, 1990, p. 1478. |
| "Polarization aberrations in the Solar Activity Measurements Experiments (SAMEX) vector magnetograph," (with R. A. Chipman), Opt. Eng., Vol. 28(2), 1989, p. 141. |
| "Polarization bibliography," (with R. A. Chipman and R.E. Fuller), Polarization Considerations in Optical Systems II, R. A. Chipman, Ed., SPIE Proc., Vol. 1166, 1989 p. 420. |
| "Polarization accuracy of LEST," (with R. A. Chipman), LEST Technical Report Series, O. Engvold and O. Hauge, Eds., Rept. 35, University of Oslo, 1988. |
| "Polarization Aberrations in Optical Systems," (with R. Chipman), SPIE, Vol. 818, 1987, p. 240. |
