Near-UV optical cavities in Ga2O3 nanowires
Abstract
In this Letter, we report optical confinement in the near-ultraviolet (near-UV) range in G a 2 O 3 nanowires (NWs) by distributed Bragg reflector (DBR) nanopatterned cavities. High-contrast DBRs, which act as the end mirrors of the cavities of the desired length, are designed and fabricated by focused ion beam etching. The resonant modes of the cavities are analyzed by micro-photoluminescence measurements, analytical models, and simulations, which show very good agreement between each other. Experimental reflectivities up to 50% are obtained over the 350–410 nm region for the resonances in this wavelength range. Therefore, G a 2 O 3 NW optical cavities are shown as good candidates for single-material-based near-UV light emitters.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 08, 2021
- Source ID
- 10.1364/ol.410757
Entities
People
- Bianchi Mendez
- Emilio Nogales
- Gerwin Chilla
- Jose M San Juan
- Manuel Alonso-Orts
- Maria L Nó
- Martin Eickhoff
- Rudolfo Hötzel
Organizations
- Air Force Office of Scientific Research
- Ministry of Economy, Industry and Competitiveness
- Ministry of Science, Innovation and Universities