Fig. 6

Photocurrent characteristics for different active mesa widths, absorber structure, and interface treatment methods: (a) A-UVO, (b) B-UVO, and (c) B-BOE. (d) Measured responsivity versus active mesa width at a wavelength 1.55 μm.

Photocurrent characteristics for different active mesa widths, absorber structure, and interface treatment methods: (a) A-UVO, (b) B-UVO, and (c) B-BOE. (d) Measured responsivity versus active mesa width at a wavelength 1.55 μm.