Title :
Surface plasmon mode coupling to the insulator/metal interface of sloped sidewalls of wet-etched Quantum Cascade lasers
Author :
Huang, Xue ; Chiu, Yenting ; Charles, William O. ; Gmachl, Claire F.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA
Abstract :
We find the main challenge for narrowing wet-etched ridges of long-wavelength Quantum Cascade lasers is surface plasmon mode coupling at the insulator/metal interface of sloped sidewalls, resulting in extra waveguide loss and hence high threshold.
Keywords :
etching; laser modes; metal-insulator boundaries; optical losses; quantum cascade lasers; surface plasmons; extra waveguide loss; insulator/metal interface; sloped sidewalls; surface plasmon mode coupling; wet-etched quantum cascade lasers; Laser modes; Measurement by laser beam; Plasmons; Quantum cascade lasers; Vertical cavity surface emitting lasers; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
