2022-02-08
EMCCD Noise Sources

EMCCD Noise Sources

EMCCD Noise Sources

PARAMETERS INFLUENCING THE E⁣M⁣C⁣C⁣D⁣ SENSITIVITY

Compared to other low flux imaging technologies, an E⁣M⁣C⁣C⁣D⁣ shows high quantum efficiency (Q⁣E⁣) and little d⁣a⁣r⁣k⁣ ⁣c⁣u⁣r⁣r⁣e⁣n⁣t⁣, much like traditional C⁣C⁣D⁣s⁣. More, it presents negligible readout noise akin the intensified C⁣C⁣D⁣s⁣ (I⁣C⁣C⁣D⁣), thus providing the best sensitivity in poor lighting conditions. For more information about the various low light imaging cameras available today, refer to our article Pushing Sensitivity to the Brink: Selecting the Right Imaging Technology for Your Application published in Biophotonics.

However, like all imaging technologies, the E⁣M⁣C⁣C⁣D⁣ suffers from thermal and readout noises as well as other electronic-dependant factors that affect its sensitivity. Clock-induced charges (C⁣I⁣C⁣), the prime noise source in E⁣M⁣C⁣C⁣D⁣, particularly at high readout rates, may contaminate images up to 200 times more than the d⁣a⁣r⁣k⁣ ⁣c⁣u⁣r⁣r⁣e⁣n⁣t⁣ when only a handful of photons reaches the camera sensor.

Listed below are the primary parameters that, when unaddressed, lessen the sensitivity of low light imaging E⁣M⁣C⁣C⁣D⁣ systems, along with the means by which Nüvü Camēras inventively and elegantly overcomes such obstacles.