Room Temperature Optoacoustic Detector

Room Temperature Optoacoustic Detector GC-1T
Golay Cell is one of the most efficient detecting devices. It has excellent sensitivity at room temperature and flat optical response over a wide wavelength range.

GC-1T detectors are manufactured and individually calibrated in-house and supplied from stock. Delivery includes a detector head and a power supply unit. A mount for the filters can be supplied as an option.

Due to polyethylene window exchange to TPX one GC-1T detectors have wider operation wavelength range spreading down to visible/UV. They can be considered as good substitute to Diamond window model as TPX has higher transmittance in THz than Diamond and surely cheaper than the latter one. So GC-1T model is only slightly expensive than GC-1P detector.

Various THz optical components such as long pass filters, polyethylene polarizers as well as windows, lenses, and beamsplitters from HRFZ-Si and TPX can be supplied as a useful complement for THz applications.

Diameter of entrance cone, mm:  11.0
Diameter of entrance window, mm: 6.0
Material of entrance window: Polymethylpentene (TPX)
Operating wavelength range, μm: 0.3 ÷ 6.5 & 13 ÷ 8000
Recommended detected power, W, up to: 1 x 10-5
Optimum modulation frequency, Hz: 15 ± 5
Noise-equivalent power @ 20Hz:
typical, W/Hz1/2  1.4 x 10-10
minimum, W/Hz1/2  0.8 x 10-10

Optical responsivity @ 20Hz:
typical, V/W    1 x 105
maximum, V/W  1.5 x 105

Response rate:
typical, ms 30
minimum, ms 25

Detectivity (D*) at entrance cone aperture:
typical, cm x Hz1/2/W 7.0 x 109
maximum, cm 11.0 x 109

Ambient operating pressure range, mm Hg 760 ÷ 10-3
Operational and storage temperature range, °C 5 ÷ 40
Humidity, % no special requirements
Vibration avoid vibrations at 1 ÷ 100 Hz
Rated voltage, VAC 100/115 ± 10%, 220/230 ± 10%
Line frequency, Hz 50 ÷ 60
Overall dimensions, L x W x H, mm3 126 x 45 x 87
Weight, kg 0.8

Application:

Monitoring and control UV-NIR and THz radiation.