OPTICAL POLARIZER; POLAROID; DICHROISM. Expert has worked in visible and infrared ellipsometry for 15 years where he has used many types of optical polarizers. He was a consultant to the US Navy on optical polarizers and manufactures metal grid polarizers for use in the IR. He keeps a complete catalog file on manufacturers of optical polarizers. Expert wrote the ASTM standard practice for measurement of extinction ratio. He can answer in-depth questions on optical polarizers including metal grid and prism polarizers.
BIREFRINGENCE; OPTICAL ACTIVITY. Expert is experienced with materials that exhibit birefringence or that can rotate or change the polarization state of light. He has used and measured birefringent materials such as quarter and half wave retarders for over 20 years. He published a paper on phase shift variations on high energy laser mirrors which exhibited reflective birefringence. He takes measurements of stress birefringence in his laboratory and can provide spatial maps of birefringence over aperture.
PLANE-POLARIZED LIGHT; POLARIMETRY; LIGHT POLARIZATION; POLARIZED LIGHT SPECTROSCOPY. Expert has designed and built many research-grade, world class ellipsometers for the Air Force, Navy, and industrial customers. These instruments are spectroscopic, computer controlled, state-of-the-art designs. He provides ellipsometry and polarized light measurement services to commercial and military customers.
ELLIPSOMETRY. With 15 years of experience in building custom ellipsometer instruments and making measurements, Expert has strong, applications-oriented expertise. He makes ellipsometric measurements in his laboratory and provides calculations of refractive index and thickness of thin-film layers.
STRATEGIC DEFENSE INITIATIVE. Expert served as a consultant to the Air Force on SDI programs from 1986 to 1992. He worked with space-based surveillance systems, specifically optical surface finish, beryllium mirrors, optical scatter, contamination, and BRDF measurements.
OPTICAL INSTRUMENT; OPTICAL EQUIPMENT. Expert has built spectroscopic and infrared instrumentation since 1978 for military and industrial customers. He is familiar with infrared detectors and optical components and devices as well as design analysis for the 0.4- to 16-micron wavelength range.
OPTICAL ENGINEERING; OPTICS. Expert has worked in the field of optical engineering for 25 years. He is a member of SPIE and OSA. He has built state-of-the-art optical instrumentation and consults on optical instrumentation and measurement programs for military and industrial customers.
OPTICAL SCATTER; OPTICAL MEASUREMENT. As a consultant to the Air Force on optical scatter measurement and surface roughness, Expert has compiled and distributed a directory of optical scatter measurement facilities in the US. He has conducted three nationwide bi-directional reflectance distribution function (BRDF) round robins. He was the principal author of the ASTM E1392 standard practice on BRDF measurement. He takes BRDF measurements in his laboratory.
METAL GRID POLARIZER. Expert has used metal grid polarizers for 15 years in IR ellipsometry. He has sold ion-beam etched, metal grid polarizers with very high contrast for 20 years and has served as a consultant to the US Navy on IR polarizers and metal grids.
HYDRAULIC LOAD SCALES. Expert manufactures hydraulic load scales used on front loader, fork lifts, or any hydraulic lifting devices. These scales use a hydraulic pressure sensor and microprocessor to calculate and display the weight being lifted.