MONOLITHIC INTEGRATION OF A DETECTION SYSTEM FOR NEAR-FIELD MICROSCOPY BASED ON OPTICAL FEEDBACK IN A VERTICAL CAVITY SURFACE EMITTING LASER

摘要

The invention concerns an optical device comprising a SNOM tip, a laser cavity, a photodetector, said SNOM tip, said laser cavity and said photodetector being monolithically assembled in one common structure, the laser cavity being a VCSEL laser. The photodetector is located either beneath the assembly consisting of the SNOM probe and the VCSEL laser, or between the SNOM tip and the VCSEL laser.