High power surface emitting terahertz laser with hybrid second- and fourth-order Bragg gratings

Yuan Jin; Liang Gao; Ji Chen; Chongzhao Wu; John L. Reno; Sushil Kumar

doi:10.1038/s41467-018-03697-9

Nature Communications (Apr 2018)

High power surface emitting terahertz laser with hybrid second- and fourth-order Bragg gratings

Yuan Jin,
Liang Gao,
Ji Chen,
Chongzhao Wu,
John L. Reno,
Sushil Kumar

Affiliations

Yuan Jin: Department of Electrical and Computer Engineering, Lehigh University
Liang Gao: Department of Electrical and Computer Engineering, Lehigh University
Ji Chen: Department of Electrical and Computer Engineering, Lehigh University
Chongzhao Wu: Department of Electrical and Computer Engineering, Lehigh University
John L. Reno: Sandia National Laboratories, Center of Integrated Nanotechnologies
Sushil Kumar: Department of Electrical and Computer Engineering, Lehigh University

DOI: https://doi.org/10.1038/s41467-018-03697-9
Journal volume & issue: Vol. 9, no. 1
pp. 1 – 7

Abstract

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Proper design of the gratings can enhance the efficiency of distributed-feedback and quantum cascade lasers. Here, Jin et al. use a hybrid grating system that superposes second- and fourth-order Bragg gratings and achieve high radiative efficiency and a single-lobe radiation pattern.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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