Spectroscopy and Spectral Analysis, Volume. 40, Issue 12, 3680(2020)
Long-Wave Infrared Absolute Spectral Responsivity Scale by Using an Absolute Cryogenic Radiometer
Fig. 1. Diagram of the absolute spectral responsivity calibration facility of Long-wave infrared detector
AF: Attenuator; M1, M2, M3, M4, M5, M6: Gold steering mirrors; BS1, BS2: Beam splitters;HW: Half-wave plate; P0, P1, P2, P3, P4: Polarizers; F1, F2, F3, F4: Lenses; CP: Chopper;EOM: Electro-optic modulator; PH: Pinhole; AP1, AP2: Aperture; DM: Dichroic mirror; S: Shutter
Fig. 2. The test results of long wave infrared laser power stability
Fig. 3. Beam profiles of the long-wave laser at 10.6 μm before (a) and after (b) the spatial filter
Fig. 5. The spatial uniformity of the response of the HgCdTe detector at 10.6 μm
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Hong-bo LIU, Xue-shun SHI, Wen-bin XU, Chang-ming LIU, Hong-yuan LIU, Heng-fei WANG. Long-Wave Infrared Absolute Spectral Responsivity Scale by Using an Absolute Cryogenic Radiometer[J]. Spectroscopy and Spectral Analysis, 2020, 40(12): 3680
Category: Research Articles
Received: Oct. 1, 2019
Accepted: --
Published Online: Jun. 18, 2021
The Author Email: Hong-bo LIU (lhbcetc@163.com)