Golay Detectors

Download Golay Cells Datasheet (PDF, 132 KB)


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. 

Golay 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. Various THz optical components such as low 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. 

For transforming an analog signal of Golay cell to a digital signal we can offer  hardware-software complex. It is served for detecting, processing, and analyzing optoacousticaldetector signals. The complex consists of  a specialized software and an electronic unit connecting Golay detector with personal computer through USB interface.

TYDEX manufactures 3 models of Golay Detectors:
1. Golay Detector GC-1P with HDPE Window
2. Golay Detector GC-1T with TPX Window
3. Golay Detector GC-1D with Diamond Window

Golay Detectors

1. Golay Detector GC-1P with HDPE Window

Application:
Monitoring and control of MIR and THz radiation.

Technical specification:

Diameter of entrance cone, mm: 11.0
Diameter of entrance window, mm: 6.0
Material of entrance window: High-Density Polyethylene (HDPE)
Optimal operating wavelength range, μm: 15 ÷ 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
minimum, W/Hz1/2

1.4 x 10-10
0.8 x 10-10
Optical responsivity @ 20Hz:
typical, V/W
maximum, V/W

1 x 105
1.5 x 105
Response rate:
typical, ms
minimum, ms

30
25
Detectivity (D*) at entrance cone aperture:
typical, cm x Hz1/2/W
maximum, cm

7.0 x 109
11.0 x 109
Ambient operating pressure range, mm Hg 760 ÷ 10-3
Operational and storage temperature range, °C 5 ÷ 40
Humidity, % 45 ÷ 80
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

 

2. Golay Cell GC-1T with TPX Window

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.

Application:
Monitoring and control UV-NIR and THz radiation.

Technical specification:

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
minimum, W/Hz1/2

1.4 x 10-10
0.8 x 10-10
Optical responsivity @ 20Hz:
typical, V/W
maximum, V/W

1 x 105
1.5 x 105
Response rate:
typical, ms
minimum, ms

30
25
Detectivity (D*) at entrance cone aperture:
typical, cm x Hz1/2/W
maximum, cm

7.0 x 109
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



3. Golay Cell GC-1D  with Diamond Window

Due to polyethylene window exchange to Diamond one, GC-1D detectors have wider operation wavelength range spreading down to visible. They are usually used when someone needs not THz and VIS ranges only but MIR also. GC-1D model is a bit more expensive than GC-1T detector.

Application:
Monitoring and control VIS-THz radiation.

Technical specification:

Diameter of entrance cone, mm: 11.0
Diameter of entrance window, mm: 6.0
Material of entrance window: Diamond
Operating wavelength range, μm: 0.4 ÷ 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
minimum, W/Hz1/2

1.4 x 10-10
0.8 x 10-10
Optical responsivity @ 20Hz:
typical, V/W
maximum, V/W

1 x 105
1.5 x 105
Response rate:
typical, ms
minimum, ms

30
25
Detectivity (D*) at entrance cone aperture:
typical, cm x Hz1/2/W
maximum, cm

7.0 x 109
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

 

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