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레이저 시스템 Laser System(166)

COUNT® T - High Detection Efficiency Photon Counter

PRODUCT

COUNT® T - High Detection Efficiency Photon Counter

-. Extremely low dark count rates
-. Timing resolution down to 350 ps (FWHM)
-. Detection efficiency >70%
-. Optional FC fiber connector
-. Single 12V DC Supply Operation
-. Stable count rate(no bi-stability)
-. NIM and TTL signal output

APPLICATION

-. Time correlated single photon counting (TCSPC)
-. Fluorescence correlation spectroscopy (FCS)
-. Fluorescence lifetime imaging (FLIM - Quantum Cryptography)
-. Photon correlation spectroscopy
-. Fluorescence analysis
-. LIDAR
-. Particle sizing

제품정보 PRODUCT INFO

COUNT® T – Single Photon Counter for Time-correlated Applications

 

Timing at Its Best: We’ll Count for You

 

In time-correlated single photon counting (TCSPC), single photons are not only counted, but the time of detection is also determined based on a reference signal. Here, a laser pulse generally serves as a reference. This method is a statistical counting method.

TCSPC is used in particular in fluorescence lifetime measurements. This method is often compared to a stop watch: A laser pulse excites a sample (time start); just a few pico or nanoseconds later, a “fluorescence photon” is released (time stop). This time is recorded in a histogram. After many start-stop passes, a conclusive histogram is created that displays the intensity of the fluorescence depending on time.

The COUNT® T is equipped with an avalanche photodiode (active area of 150 µm) produced in house and features a high detection efficiency of >80% and a temporal resolution of up to 350 ps.

In addition to fluorescence lifetime measurement (FLIM), the timing module is used in time-resolved fluorescence and single-molecule spectroscopy, as well as LIDAR applications. The technical data of the COUNT® T is given in the datasheet, which can be downloaded under the link provided.

 

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