Jh. Hunt et Rb. Holmes, OBSERVATION OF OPTICAL-RESPONSE OF AVALANCHE PHOTODIODES AT PHOTON-COUNTING LIGHT LEVELS, Applied physics letters, 64(22), 1994, pp. 2925-2927
We have demonstrated all-optical spatial light modulation at photon-co
unting light levels. Modulation is performed with a silicon avalanche
photodiode operating as a Fizeau interferometer with optical thickness
modulated by optically initiated, avalanche-induced heating. Modulati
on of 32% is achieved with off-the-shelf devices with writing beams us
ing as few as 10 photons per pulse. The results represent the first sp
atially and temporally resolved measurements of avalanche breakdown.