Diamond-like antireflective coatings for far infrared photoconductors

Conference · Fri May 01 04:00:00 EDT 1987

OSTI ID:6289259

Beeman, J W; Nyaiesh, A R; Haller, E E; Hansen, W L; Garwin, E L

Diamond-like films have been used as antireflective coatings on far infrared semiconductor photoconductors. An average increase in the detector responsivity of 28% was realized for optimally coated gallium-doped germanium photoconductors compared to uncoated devices. The photoconductors were operated at 3 K without cavity in a narrow wavelength range from 98.45 to 99.35 m. The films survived repeated thermal cycling between room temperature and 2.5 K. Any increase in dark current caused by the coating is less than or equal to 10 U A, a value which is given by instrumentation. The protective qualities of the film are explored. The potential applications of diamond-like coated photoconductors in large, unstressed and stressed arrays which will be used in future, satellite-born astrophysics missions will be discussed. 9 refs., 5 figs.

• Research Organization: Lawrence Berkeley Lab., CA (USA); Stanford Linear Accelerator Center, Menlo Park, CA (USA)
• DOE Contract Number: AC03-76SF00515; AC03-76SF00098
• OSTI ID: 6289259
• Report Number(s): SLAC-PUB-4309; CONF-8706152-2; ON: DE87012836
• Country of Publication: United States
• Language: English

Related Subjects

440300* -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ANTIREFLECTION COATINGS
ARSENIC COMPOUNDS
ARSENIDES
COATINGS
DATA
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
FAR INFRARED RADIATION
FILMS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INFORMATION
INFRARED RADIATION
MATERIALS
NUMERICAL DATA
PERFORMANCE TESTING
PHOTOCONDUCTORS
PNICTIDES
RADIATIONS
SEMICONDUCTOR MATERIALS
TESTING