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Room temperature ultraviolet GaN metal-coated nanorod laser.
- Source :
-
Applied Physics Letters . 11/4/2013, Vol. 103 Issue 19, p191102. 4p. 3 Diagrams, 2 Graphs. - Publication Year :
- 2013
-
Abstract
- This study demonstrates a room-temperature ultraviolet GaN/Al nanorod (NR) metal laser with an optimized sidewall. A wet-chemical etching process with potassium hydroxide was used to control the GaN NR sidewall angle and polish the NR surface. The lasing action was observed near a wavelength of 365 nm with a low threshold power density of 5.2 mJ/cm2. The high-quality factor (Q) surface plasmon lasing modes were characterized with experiments and three-dimensional finite-element method simulations. We also studied the optical modes in GaN metal-coated NR with and without an Al layer and verified the metal layer is necessary for high-Q resonant modes. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 103
- Issue :
- 19
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 92706600
- Full Text :
- https://doi.org/10.1063/1.4828997