Product enquiryProduct brochure

Mercury Cadmium Telluride

Liquid nitrogen cooling IR detectors, spectral range from 2 to 22 um.

Gilden Photonics supplies two main types of HgCdTe detectors which are packaged in the DEC-(x) series detectors housing that can be connected directly to the spectrograph slits.

The two types of dectors are the DMCT (x)-De and the DMCT11-HS

DMCT(x)-De is the liquid nitrogen cooling detector suitable for general measurement with four cut-off wavelengths, (X-12/ 14/ 16/  22)

DMCT12-HS is a liquid nitrogen cooled and high speed response detector with integrated preamplifier, and response time less than 50 ns.

DMCT (x)-De and DMCT12-HS MCT detectors are the liquid nitrogen cooling Near-IR, Mid-IR detectors. In order to facilitate connection with the range of Gilden Photonics spectrographs, the liquid nitrogen Dewar built-in the DEC-(x) detectors housing, x corresponds to different types of Dewar.

DMCT (x)-De series are not integrated to a preamplifier, so they must be connected to a preamplifier. ZPA-101 or ZPA-300 from Gilden Photonics are recommended. Alternatively the user can use either the DCS103 or DCS300PA (Data acquire systems), and the lock-in amplifier as the data acquisition equipment.

DMCT 12-HS is a high speed response detector, with 50MHz bandwidth integrated preamplifier. The DMCT 12-HS can be used for the IR time resolved measurement, which can be directly connected with Oscilloscopes. The option active size diameters are 1mm, 0.5mm and 0.1mm. The smaller the size the faster response speed, up to 3.5 ns

When the Dewar is almost filled with liquid nitrogen, it can maintain required cooling temperature for 8 hours.

Active Size Diameter 1 x 1 1 x 1 1 x 1 1 x 1 1 x 1 mm
Spectral Range 2 - 12 2 - 14 2 - 16 2 - 22 2 - 12 μm
Peak Responsively 3 x 10³ 1 x 10³ 900 150 > 4 x 10⁴ A / W
Response Time - - - - < 25 ns
D* (@ λpeak, 1KHz) 3 x 10¹⁰ 3 x 10¹⁰ 2.5 x 10¹⁰ 5 x 10¹⁰ 3 x 10¹⁰ Hz½ W¯¹
Preamplifier ZPA - 101 ZPA - 101 ZPA - 101 ZPA - 101 Integration -
Signal Output Current Current Current Current Voltage -
Output Signal Polarity P P P P P -
Mercury Cadmium Telluride

Other Popular Products

  • Single Channel DetectorSingle Channel Detector
    Single channel detector, spectral coverage is UV-VIS-IR spectrum
    View Details
  • Silicon DetectorSilicon Detector
    Silicon detectors are a rugged standard detector for applications that have good collected light levels.
    View Details

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