RACHAGAME168 เกมส์สำหรับคนทุนน้อย เบทเริ่มต้น 1 บาททุกค่าย

Characterizing a laser beam is a growing concern in the industry. A great number of instruments are available on the market, each with their specialities. When it comes to analysing the spatial behaviour of a laser beam, the most common solution is the...

After having explained the causes of optical noise in detectors, I’d like in this post to define the parameters that makes it possible to compare detectors noise specifications. Signal to noise ratio Also noted SNR or S/N. This is defined as the ratio...

Comparing detector noise specifications After having explained the causes of optical noise in detectors, I’d like in this post to define the parameters that makes it possible to compare detectors noise specifications. Signal to noise ratio Also noted...

After my recent post on power and energy meters, I’d like to speak about the different kind of noises that affect a photodetector and how to model them. Quantum effect and noise: the shot noise. Fundamental physics tells us the light is made of particles...