Tunable colloidal quantum dot distributed feedback lasers integrated on a continuously chirped surface grating.
Sign Up to like & getrecommendations! Published in 2018 at "Nanoscale"
DOI: 10.1039/c8nr07854h
Abstract: We report a colloidal quantum dot (CQD) distributed feedback (DFB) laser structure containing a chirped grating. The device exhibits single-mode DFB lasing, of which the wavelength is spatially dispersed in a single chip. A period-chirped… read more here.
Keywords: surface; surface grating; quantum dot; chirped surface ... See more keywords
GaSb surface grating distributed feedback interband cascade laser emitting at 3.25 µm.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.465716
Abstract: A second-order distributed feedback interband cascade laser emitting at 3.25 µm was designed, grown, and fabricated. By coherent epitaxy of a GaSb cap layer instead of the conventional thin InAs cap on top of the… read more here.
Keywords: interband cascade; laser emitting; cascade laser; surface grating ... See more keywords
High-efficiency gain-coupled distributed feedback semiconductor laser achieved using a metal surface grating.
Sign Up to like & getrecommendations! Published in 2025 at "Optics express"
DOI: 10.1364/oe.569366
Abstract: This study demonstrates a pure gain coupling laser achieved through periodic injection using a metal surface grating. To enhance both the gain contrast and the grating coupling factor, the grating coverage width was optimized to… read more here.
Keywords: using metal; laser achieved; gain; gain coupled ... See more keywords