Mesa In0.53Ga0.47As avalanche photodetectors were successfully fabricated by liquid-phase-epitaxial growth on (100) -InP substrate and Zn-diffusion technique. An avalanche multiplication M as high as 32 was measured under broad-area illumination provided by a cw InGaAsP laser at 1.3 μm. Distribution of M was measured by an electron-beam-induced current image of a scanning electron microscope, and uniform multiplication profiles were observed up to M=3 and M=12 at the mesa diameter of 300 and 150 μm, respectively.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)