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Pyroelectric detectors - InSb series

Indium Antimode (InSb) Series Detectors

Liquid Nitrogen cooling IR detectors used to detect over a spectral range of 1.0 to 5.5μm.

There are two types of InSb detectors: the DInSb5-De(x) and DInSb5-HS.

  • DInSb5-De(x) is the liquid nitrogen cooling detector. x-01/02/04/07, there are four kinds of active sizes for this type of detector, which is suitable for general measurement which must work with the preamplifier.
  • DInSb5-HS is the liquid nitrogen cooling and high-speed response detector, integrated preamplifier, and response time less <25 ns.
  • Detector devices are packaged in the DEC-(x) series detectors housing connected to the spectrograph slits.


  DINSB 5 - DE 01 DINSB 5 - DE 02 DINSB 5 - DE 04 DINSB 5 - DE 07 DINSB 5 - HS UNIT
Active Size Diameter Φ1 Φ2 Φ4 Φ7 1 x 1 mm
Spectral Range 1-5.5 1-5.5 1-5.5 1-5.5 1-5.5 μm
Peak Responsivity 3 3 3 3 - A / W
Peak Responsivity - - - - 2 x 10 V / W
Response Time - - 0 - < 25 ns
D*(@ λpeak, 1KHz) 1 x 10¹¹ 1 x 10¹¹ 1 x 10¹¹ 1 x 10¹¹ 1 x 10¹¹ Hz½ W¯¹
NEP (@λpeak, 1KHz) 0.8 1.6 3 6 - pW / Hz½
Dark Current 7 30 110 350 - μA
Preamplifier Option Option Option Option Integration -
Signal Output Current Current Current Current Voltage -
Output Signal Polarity P P P P P -

InSb detectors application advice

  • DInSb5-De(x) and DInSb5-HS detectors are the liquid nitrogen cooling Near-IR, Mid-IR detectors. In order to facilitate connection with Gilden Photonics spectrograph, the liquid nitrogen Dewar built-in the DEC-(x) detectors housing, x corresponds to different types of Dewar.
  • DInSb5-De(x) deries are not intregrated to a preamplifier, so must be connected to one other preamplifier, ZAMP or ZPA-7 are recommended. Or using the DCS300PA Data acquire system and the lock-in amplifier as the data acquisition equipment.
  • DInSb5-HS is the high speed response detector that can be used for the IR time resolved measurement, can be directly connected with Oscilloscopes
  • Providing liquid nitrogen for customers themselves. When the Dewar is almost filled with liquid nitrogen, it can maintain for 8 hours.
Pyroelectric detectors - InSb series

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Contact us

Gilden Photonics Ltd.
Unit 13 Telford Court
9 South Avenue
Clydebank Business Park
Glasgow G81 2NR

tel: +44 (0)141 952 9475
fax: +44 (0)141 952 9400