Jump to main content
Jump to site search


Anisotropic properties of pipe-GaN distributed Bragg reflectors

Author affiliations

Abstract

We report here a simple and robust process to convert periodic Si-doped GaN/undoped-GaN epitaxial layers into a porous-GaN/u-GaN distributed Bragg reflector (DBR) structure and demonstrate its material properties in a high-reflectance epitaxial reflector. Directional pipe-GaN layers with anisotropic optical properties were formed from n+-GaN : Si layers in a stacked structure through a lateral and doping-selective electrochemical etching process. Central wavelengths of the polarized reflectance spectra were measured to be 473 nm and 457 nm for the pipe-GaN reflector when the direction of the linear polarizer was along and perpendicular to the pipe-GaN structure. The DBR reflector with directional pipe-GaN layers has the potential for a high efficiency polarized light source and vertical cavity surface emitting laser applications.

Graphical abstract: Anisotropic properties of pipe-GaN distributed Bragg reflectors

Back to tab navigation

Article information


Submitted
24 Nov 2019
Accepted
23 Mar 2020
First published
23 Mar 2020

This article is Open Access

Nanoscale Adv., 2020, Advance Article
Article type
Paper

Anisotropic properties of pipe-GaN distributed Bragg reflectors

C. Wu, Y. Chen, C. Wang, G. Shiu, C. Huang, H. Liu, H. Chen, Y. Lin, C. Lin and J. Han, Nanoscale Adv., 2020, Advance Article , DOI: 10.1039/C9NA00743A

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements