Type II Superlattice Photoconductive DetectorPCIAS-3TE-12-1×1-TO8-wZnSeAR-36

1.6 – 12.6 µm, three-stage thermoelectrically cooled, optically immersed

PCIAS-3TE-12-1×1-TO8-wZnSeAR-36 is a Type II superlattice three-stage thermoelectrically cooled IR photoconductor, with excellent parameters. Detector element is monolithically integrated with hyperhemispherical GaAs microlens in order to improve performance of the device. Photoconductive detector should operate in optimum bias voltage and current readout mode. Performance at low frequencies is reduced due to 1/f noise. 3° wedged zinc selenide anti-reflection coated window (wZnSeAR) prevents unwanted interference effects. For detection of CW radiation, using of optical chopper system is recommended. This detector does not contain mercury or cadmium and is compliant with the RoHS Directive.

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Features

Optical immersion lens technology applied

High performance in spectral range from 1.6 to 12.6 µm

Very high responsivity

Excellent linearity

Environmentally friendly

Specification (T_a = 20°C)

Parameter	PCIAS-3TE-12-1×1-TO8-wZnSeAR-36
Active element material	epitaxial superlattice heterostructure
Cut-on wavelength λ_cut-on (10%), µm	1.6±0.2
Peak wavelength λ_peak, µm	8.0±1.0
Cut-off wavelength λ_cut-off (10%), µm	12.0±0.3
*Detectivity D(λ_peak, 20 kHz), cm⋅Hz^1/2/W**	~2.0×10⁹
Current responsivity R_i(λ_peak), A/W	~0.9
Time constant τ, ns	~4
Resistance R, Ω	~45
Bias voltage V_b, V	typ. 0.5
1/f noise corner frequency f_c, Hz	typ. 20k
Active element temperature T_det, K	~210
Optical area A_O, mm×mm	1×1
Package	TO8
Acceptance angle, Φ	~36°
Window	wZnSeAR