Photon Counter

Photon Counters Count

This single photon counting module detects single photons in a range of 400-1000nm. It attains 70% photon detection efficiency in the red region and comparatively higher in the blue region from the ones that are currently available in the market.  It also has extremely low as 10 counts/s dark count rate than others. Well-suited for single-photon LiDAR, particle sizing, confocal microscopy, Astronomy, and quantum cryptography.

Wavelength: 400 – 1000nm
Dark Count Rate: 10/20/50/100/250 counts/s
Photon Detection Efficiency: 5-15% @ 405nm | 60-70% @ 670nm | 40-50% @ 810nm
Active Area: 100µm
Afterpulsing Probability: L 0.2%
Dead Time: 42-45ns
Time Delay: 30ns

Photon Counters Count Blue

This is specially designed for higher quantum efficiency at shorter wavelengths.  It can achieve 55%, 70% and 50% photon detection efficiency at blue, green and red regions respectively.  The dark count rates are very low from 20-250 counts/s in 350-1000nm range.  Its usage is relevant in Raman spectroscopy, confocal microscopy and time-resolved single molecule detection.

Wavelength: 350 – 1000nm
Dark Count Rate: 10/20/50/100/250 counts/s
Photon Detection Efficiency: 50-55% @ 405nm | 60-70% @ 532nm | 50-55% @ 670nm
Active Area: 100µm
Dead Time: 42-45ns
Time Delay: 30ns

Lasers & Detectors Photon Counters Count NIR

This is a single photon counting module for NIR. The highlights for this photon counter are enhanced detection efficiency, low dark count rate as 50counts/s, and greater stability around 810nm. This wavelength acts as a main role in quantum cryptography applications.

Wavelength: 400 – 1000nm
Dark Count Rate: 50/100/250/500 counts/s
Photon Detection Efficiency: 60-70% @ 670nm | 50-60% @ 810nm
Active Area: 100µm
Dead Time: 42-45ns
Time Delay: 30ns

Photon Counters Count T

This is called time-correlated single photon counting module.  Because it can determine time of detection of a single photons based on a reference signal (a laser pulse) using statistical counting method. Having a timing resolution of upto 350ps makes ease of use for time-correlated single photon counting, fluorescence and photon correlated spectroscopy and in fluorescence life-time imaging.

Wavelength: 400 – 1000nm
Dark Count Rate: 100/250 counts/s
Photon Detection Efficiency: 20-40% @ 405nm | 60-75% @ 670nm | 40-60% @ 810nm
Active Area: 100µm
Dead Time: 42-45ns
Time Delay: 30ns

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