Enhanced MWIR Led Performance with a Plasmonic Grating

To improve the efficiency of GaSb-based mid-wave infrared LEDs, we investigated the enhanced spontaneous emission by a dipole in a thin slab numerically. A Purcell factor around 5 was achieved by combining a thin waveguide and plasmonic grating.

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Bibliographic Details
Published in2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID) pp. 1 - 4
Main Authors Dai, Weitao, Prineas, John P.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2019
Subjects
Astronomy
Gratings
LED
Light emitting diodes
Metals
Physics
Plasmons
Purcell effect
Slabs
surface plasmonic grating
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Summary:To improve the efficiency of GaSb-based mid-wave infrared LEDs, we investigated the enhanced spontaneous emission by a dipole in a thin slab numerically. A Purcell factor around 5 was achieved by combining a thin waveguide and plasmonic grating.
DOI:10.1109/RAPID.2019.8864364