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Tunable Wavelength: Unique property of HgCdTe Hg 1-x Cd x Te Modify ratio of Mercury and Cadmium to “tune” the bandgap energy 2 ( 1− x) E g = −0.302 + 1.93x − 0.81x + 0.832 x + 5.35 × 10 T 2 G. L. Hansen, J. L. Schmidt, T. N. Casselman, J. Appl. Phys. 53(10), 1982, p. 7099 3 −4 20
Absorption Depth of Photons in HgCdTe Rule of Thumb Thickness of HgCdTe layer needs to be about equal to the cutoff wavelength Absorption Depth Thickness of detector material that absorbs 63.2% of the radiation 1/e of the energy is absorbed 1 absorption depth(s) 63.2% of light absorbed 2 86.5% 3 95.0% 4 98.2% For high QE, thickness of detector material should be ≥ 3 absorption depths 21
Page 1 and 2: High Performance Imaging Sensors fo
Page 3 and 4: Hubble Space Telescope
Page 5 and 6: James Webb Space Telescope (JWST)
Page 7 and 8: NASA’s s Partner for Earth Scienc
Page 9 and 10: Orbiting Carbon Observatory (OCO) T
Page 11: The Technologies of High Performanc
Page 15 and 16: Hybrid CMOS Infrared Imaging Sensor
Page 17: Crystals are excellent detectors of
Page 22 and 23: Molecular Beam Epitaxy (MBE) Growth
Page 24 and 25: 6 Steps of CMOS-based Optical / IR
Page 26 and 27: Hybrid Imager Architecture HgCdTe l
Page 28 and 29: Quantum Efficiency of substrate-rem
Page 30 and 31: Dark Current Undesirable byproduct
Page 32 and 33: 6 Steps of CMOS-based Optical / IR
Page 34 and 35: IR multiplexer pixel architecture V
Page 36 and 37: IR multiplexer pixel architecture V
Page 38 and 39: Reduction of noise from multiple sa
Page 40 and 41: High Performance Hybrid CMOS Arrays
Page 42 and 43: HyViSI Array Formats Ground-based A
Page 44 and 45: The SIDECAR ASIC - Focal Plane Elec
Page 46 and 47: Hubble Space Telescope Advanced Cam
Page 48 and 49: SIDECAR ASIC & large mosaic focal p
Page 50: Teledyne Enabling humankind to unde

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