@article { ISI:000230886100007,
	title = {Vertically oriented GaN-based air-gap distributed Bragg reflector structure fabricated using band-gap-selective photoelectrochemical etching},
	journal = {APPLIED PHYSICS LETTERS},
	volume = {87},
	year = {2005},
	month = {AUG 1},
	issn = {0003-6951},
	doi = {10.1063/1.2008380},
	author = {Sharma, R and Haberer, ED and Meier, C and Hu, E. L. and Nakamura, S.}
}
