Critical optical coupling between a GaAs disk and a nanowaveguide suspended on the chip

Autor:	Sara Ducci, Aristide Lemaître, Christopher G. Baker, Elisabeth Galopin, Giuseppe Leo, Pascale Senellart, Cherif Belacel, Alessio Andronico, Ivan Favero
Rok vydání:	2011
Předmět:	Coupling Materials science Physics and Astronomy (miscellaneous) business.industry Physics::Optics FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology Coupled mode theory Chip 01 natural sciences Optical coupling Waveguide (optics) 0103 physical sciences Optoelectronics Astrophysics::Earth and Planetary Astrophysics Whispering-gallery wave 010306 general physics 0210 nano-technology business Nanoscopic scale Astrophysics::Galaxy Astrophysics Physics - Optics Optics (physics.optics)
DOI:	10.48550/arxiv.1108.0680
Popis:	We report on an integrated GaAs disk/waveguide system. A millimeter-long waveguide is suspended and tapered on the chip over a length of 25 {\mu}m to evanescently couple to high Q optical whispering gallery modes of a GaAs disk. The critical coupling regime is obtained both by varying the disk/guide gap distance and the width of the suspended nanoscale taper. The experimental results are in good agreement with predictions from the coupled mode theory. Comment: 14 pages, 4 figures
Databáze:	OpenAIRE
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