PEMI VIGO | Alldatasheet
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PEMI series HgCdTe detectors datasheet P a g e | 1 09/11/2020 VIGO System S.A. reserves the right to change these specifications at any time without notification. www.vigo.com.pl PEMI series 2.0 – 12.0 µm HgCdTe ambient temperature, optically immersed photoelectromagnetic detectors PEMI series features uncooled HgCdTe photovoltaic optically immersed IR detectors based on photelectromagnetic effect in the semiconductor – spatial separation of optically generated electrons and holes in the magnetic field. The devices are designed for the maximum performance at 10.6 µm and especially useful as large optical area det ectors to detect CW and low frequency modulated radiation. These devices are mounted in specialized packages with incorporated magnetic circuit inside. 3° wedged zinc selenide anti-reflection coating (wZnSeAR) window prevents unwanted interference effects and protects against pollution. Spectral response (Ta = 20°C) Exemplary spectral detectivity, the spectral response of delivered devices may differ. PEM-TO8 PEM-SMA Specification (Ta = 20°C) Parameter Detector type PEMI-10.6 Active element material epitaxial HgCdTe heterostructure Optimum wavelength λopt, µm 10.6 Detectivity D*(λpeak), cm·Hz1/2/W ≥1.6×108 Detectivity D*(λopt), cm·Hz1/2/W ≥1.0×108 Current responsivity-optical area length product Ri(λopt)·L, A·mm/W ≥0.01 Time constant τ, ns ≤1.2 Resistance R, Ω 40 to 100 Optical area AO, mm×mm 1×1, 2×2 Acceptance angle Φ ~36° Window wZnSeAR 1E+07 1E+08 1E+09 2 3 4 5 6 7 8 9 10 11 12 D*, cm·Hz1/2/W Wavelength, µm PEMI-10.6
PEMI series HgCdTe detectors datasheet P a g e | 2 09/11/2020 VIGO System S.A. reserves the right to change these specifications at any time without notification. www.vigo.com.pl Mechanical layout, mm PEM-SMA PEM-TO8 Parameter Value Immersion microlens shape hyperhemisphere Optical area AO, mm×mm 1×1 2×2 R, mm 0.8 1.25 Parameter Value Immersion microlens shape hyperhemisphere Optical area AO, mm×mm 1×1 2×2 R, mm 0.8 1.25 Φ – acceptance angle R – hyperhemisphere microlens radius A – distance from the top of PEM-SMA lid to the focal plane Φ – acceptance angle R – hyperhemisphere microlens radius A – distance from the bottom of PEM-TO8 header to the focal plane Top view Bottom view Function Pin number Detector 1, 3 Chassis ground 11 Not used 2, 4, 5, 6, 7, 8, 9, 10, 12 Spectral transmission of wZnSeAR window (typical example) Dedicated preamplifier standard MIP 100 1 15 Transmission, % Wavelength, µm