Title
Optically pumped vertical-cavity surface-emitting laser at 374.9 nm with an electrically conducting n-type distributed Bragg reflector
Date Issued
01 November 2016
Access level
metadata only access
Resource Type
journal article
Author(s)
Liu Y.
Saniul Haq A.
Mehta K.
Kao T.
Wang S.
Xie H.
Shen S.
Yoder P.
Detchprohm T.
Dupuis R.
Publisher(s)
Japan Society of Applied Physics
Abstract
An optically pumped vertical-cavity surface-emitting laser with an electrically conducting n-type distributed Bragg reflector was achieved at 374.9 nm. An epitaxially grown 40-pair n-type AlGaN/GaN distributed Bragg reflector was used as the bottom mirror, while the top mirror was formed by a dielectric distributed Bragg reflector composed of seven pairs of HfO2/SiO2. A numerical simulation for the optical mode clearly demonstrated that a high confinement factor was achieved and the threshold pumping power density at room temperature was measured as 1.64 MW/cm2. The achieved optically pumped laser demonstrates the potential of utilizing an n-type distributed Bragg reflector for surface-emitting optical devices.
Volume
9
Issue
11
Language
English
OCDE Knowledge area
Óptica
Scopus EID
2-s2.0-84994145784
Source
Applied Physics Express
ISSN of the container
18820778
Sponsor(s)
This work is supported by the Defense Advanced Research Projects Agency under Contract No. W911NF-15-1-0026. This work was performed in part at the Georgia Tech Institute for Electronics and Nanotechnology, a member of the National Nanotechnology Coordinated Infrastructure, which is supported by the National Science Foundation (Grant ECCS-1542174). RDD acknowledges additional support from the Steve W. Chaddick Endowed Chair in Electro-Optics and the Georgia Research Alliance.
Sources of information:
Directorio de Producción CientÃfica
Scopus