- 측정기 | Detector & Analyzer > Single Photon Counting Modules
| 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# |
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| 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# |
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| Download | ||
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.
