AI Article Synopsis
- The Silicon Photo Multiplier (SiPM) shows a rapid counting capability, successfully detecting two photons that are only 2.3 ns apart, equating to a frequency of 430 MHz.
- The counting efficiency at low light levels (532 nm wavelength) is about 16%, with a dark count rate of 52 kHz at -5 degrees Celsius.
- In multiphoton detection mode, the SiPM effectively distinguishes between varying numbers of photons detected simultaneously.
Article Abstract
We demonstrate fast counting and multiphoton detection abilities of a Silicon Photo Multiplier (SiPM). In fast counting mode we are able to detect two consecutive photons separated by only 2.3 ns corresponding to 430 MHz. The counting efficiency for small optical intensities at lambda= 532 nm was found to be around 16% with a dark count rate of 52 kHz at T= -5 masculine C. Using the SiPM in multiphoton detection mode, we find a good signal discrimination for different numbers of simultaneously detected photons.
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| http://dx.doi.org/10.1364/oe.15.014539 | DOI Listing |
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