Improved performance of quantum well infrared photodetectors using random scattering optical

Sarusi, G.; Levine, B.F.
February 1994
Applied Physics Letters;2/21/1994, Vol. 64 Issue 8, p960
Academic Journal
Demonstrates the effect of random scattering reflector in quantum well infrared photodetector on optical coupling. Comparison of optical absorption between optical coupling technique and one-dimensional grating; Effect of random scattering reflector on responsivity curve; Increase of path length for optical absorption.


Related Articles

  • Reflection From a Third Hand.  // Videography;Jun2010, Vol. 35 Issue 6, p14 

    The article offers tips for mounting a neat spring-open folding reflector.

  • Optical nonlinear effects in GaAs/GaAlAs Bragg reflectors. Le Saux, G.; Pocholle, J. P.; Bretenaker, F.; Zibell, L.; Barbier, E.; Salin, F.; Papuchon, M.; Brun, A. // Journal of Applied Physics;3/15/1990, Vol. 67 Issue 6, p3190 

    Discusses a study in which the reflectivity of semiconductor layers in an artificial multilayered structure was rapidly modified, and time resolved, under subpisecond illumination. Optical tuning of a bragg reflector induced by short optical pulses; Single reflectivity modifications in a...

  • Infrared sensors broaden scope of platform gas analysis. Markley, Jeff // Offshore;Nov95, Vol. 55 Issue 11, p141 

    Looks at the use of infrared gas detection in offshore applications. What was used before infrared technique; Information on infrared technology; Reference made to infrared sensors.

  • New devices warn pilots to avoid dangerous eruptions.  // Current Science;3/11/94, Vol. 79 Issue 14, p14 

    Reports on an infrared device being developed to warn pilots of dangerous volcanic eruptions. Features of the device; Purpose.

  • Build a super-sensitive heat detector. Campisi, Skip // Electronics Now;Aug98, Vol. 69 Issue 8, p35 

    Offers advice on building a ultra-sensitive infrared-sensing heat detector. Schematic diagram of the device; Power source; Materials needed; Alternate resistors needed.

  • Hughes SBRC engineers create intergrated two-color...  // Laser Focus World;Sept94, Vol. 30 Issue 9, p11 

    Reports that an integrated two-color infrared detector array have been created by engineers at Hughes Santa Barbara Research Center in Goleta, California. Features and capabilities of the device.

  • How to control thermal noise in infrared systems. Scholl, Marija S. // Laser Focus World;Mar95, Vol. 31 Issue 3, p133 

    Describes an effective method for controlling thermal noise in infrared detector systems. Noise considerations in infrared applications; Use of a glare stop in a microscope to decrease the amount of light scattered into the image plane; Details in placing stops.

  • Infrared detectors offer high sensitivity. Lerner, Eric J. // Laser Focus World;Jun96, Vol. 32 Issue 6, p155 

    Focuses on quantum and thermal infrared detectors. Intrinsic quantum detectors; Use of both intrinsic and extrinsic semiconductors in infrared photodiodes; Photoemissive detectors; Quantum-well infrared photoconductors.

  • Demand for high-speed detectors drives research. Davidson, Andrew; Marsland, Robert // Laser Focus World;Apr98, Vol. 34 Issue 4, p101 

    Discusses two classes of two high-speed detectors, resonant-cavity enhanced (RCE) detectors and high-power traveling-wave detectors. Design issues for RCE detectors; Research on obtaining high-performance devices capable of operating at communication wavelengths; Power-handling capabilities of...

  • Moisture-proof photo sensor. Perkins, Christine // Design News;11/3/97, Vol. 53 Issue 21, p54 

    Presents information on a moisture-proof photo sensor which was developed by Efector Incorporated in Exton, Pennsylvania. What is the purpose of the photo sensor; How the sensor works; Cost of the sensor.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics