Optically pumped vertical-cavity surface-emitting laser at 374.9 nm with an electrically conducting n-type distributed Bragg reflector

Yuh Shiuan Liu, Abul Fazal Muhammad Saniul Haq, Karan Mehta, Tsung Ting Kao, Shuo Wang, Hongen Xie, Shyh Chiang Shen, P. Douglas Yoder, Fernando Ponce, Theeradetch Detchprohm, Russell D. Dupuis

Research output: Contribution to journalArticle

15 Scopus citations

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.

Original languageEnglish (US)
Article number111002
JournalApplied Physics Express
Volume9
Issue number11
DOIs
StatePublished - Nov 1 2016

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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    Liu, Y. S., Saniul Haq, A. F. M., Mehta, K., Kao, T. T., Wang, S., Xie, H., Shen, S. C., Yoder, P. D., Ponce, F., Detchprohm, T., & Dupuis, R. D. (2016). Optically pumped vertical-cavity surface-emitting laser at 374.9 nm with an electrically conducting n-type distributed Bragg reflector. Applied Physics Express, 9(11), [111002]. https://doi.org/10.7567/APEX.9.111002