KLD SERIES
Model KLD-0.5-J1/11/DC
HgCdTe photodiode/Preamplifier
Description
Model KLD-0.5-J1 series is an integrated medium frequency infrared detector/amplifier sensor for the 2um to 12um spectral range. The HgCdTe photovoltaic detector is coupled to an internal DC to 5 MHz bandwidth low noise transimpedance amplifier. The output can be ordered either as DC or AC. Detector size is 0.5 mm. The D* is greater than 4 x 1010 Jones. The side looking LN2 pour filled dewar has a 12 hour hold time.
Window options include ZnSe antireflection coated 2um to
13um[standard]; BaF2; BBAR coated Ge. Cold filters are optional but can be added
easily. These filters can be narrow band, band pass, long pass,
or low pass. Sometimes a combination of long pass and the
detectors natural cutoff can define the band pass. The cold stop
or field of view (FOV) is 60 degrees[standard].
Cutoff wavelength greater than 11um is standard, but other wavelengths
are available -- 8um, 4.5um, 12.5um.
| Relative Responsivity Amp/Watt |
0.5mm ;KLD pulse response |
 |
 |
Applications
The KLD series detectors are designed for FTIR spectroscopy applications and other applications requiring moderate rise times, wide bandwidth, high detectivity, and linear response with power.- FTIR
- LASER SYSTEMS
- Laboratory Use
- CHEMICAL GAS DETECTION -- CO2, CH4...
Performance Specifications
| Size(mmxmm) | 2.0, 1.0, 0.5, 0.25, 0.1 | |
| Quantum Efficiency | >75% | |
| Wavelength cutoff | selectable -- typical 11.5um | |
| Bandwidth [0.5 mm size] | DC to 5 MHz
100Hz to 5 MHz |
|
| FOV | 60 degrees full angle | |
| D*(peak,20kHz,60,1) | 4 X 1010 Jones nom. | |
| Responsivity
(output) |
40,000 V/Watt | |
| Power | +15V,-15V 30mA |