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  • An Introduction to Optical Coatings
    Optical coatings are used to manipulate the reflectance and transmittance of an optical component. Typical coating examples include: Antireflection Coatings which reduce the amount of light reflected at a given wavelength or wavelength range; Narrow Band Filters which allow only a given window
  • Optical and Thermal Testing of Nickel and Glass Lamphouse Module Reflectors
    The objective of this study was to eliminate speculation and assumption regarding reflector substrate optical and thermal performance by actually performing measurements and reporting the results of the measurements. Here, we report the optical and thermal measurement results of a single glass
  • Optical Feedback in Photodigm's Laser Diodes - Application Note
    External feedback effects to semiconductor lasers of all varieties has been well studied [1]-[3]. These feedback effects impact all semiconductor lasers equally from Fabry-Perot (FP) lasers to. distributed feedback (DFB) lasers to distributed Bragg reflector (DBR) lasers.
  • Secure optical communication system utilizing deformable MEMS mirrors
    Voice communication in free space was demonstrated at ranges larger than 200 meters. A new retro-reflector design, incorporating more modulated mirrors had been constructed. This configuration was built and tested. Its performance and advantages as compared to the single mirror retro-reflector
  • Sensing Color with the TAOS TCS230
    The TAOS TCS230 is a small, highly integrated color sensing device packaged in a clear plastic 8-pin SOIC. It reports, as analog frequency, the amount of shortwave (blue), mediumwave (green), longwave (red), and wideband (white) optical power incident onto the device. It can be used in a variety
  • Solar Loading Effects on TFT Displays Part I
    ambient sunlight conditions is due to the absorption of the sun's infrared energy. If the exposed LCDs thermal load is not minimized then temporary inhibition of the LCD cells electro optical response function will occur. The end result observed when the LCD cell temperature limit is exceeded
  • Ultra-thin mirror for high-performance optics
    Engineers at the University of California, Berkeley, have created mirrors that pack the same 99.9% reflectivity as current distributed Bragg reflector (DBR) mirrors, but do so in packages 20 times thinner. The high-index contrast sub-wavelength grating (HCG) mirrors were developed by Connie J
  • Efficient green-light generation from waveguide crystal
    of a. high-power distributed Bragg reflector (DBR) laser in combination. with a lithium niobate (LiNbO3) waveguide crystal has been successfully. demonstrated, reaching green power levels of 184 mW with a conversion. efficiency of 67% [1, 2]. In this Letter, a similar experimental. setup for IR to visible

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