Circular GaN Membrane Gratings

Yongjin Wang; Zheng Shi; Xin Li; Martin Lopez-Garcia; Lifeng Chen; Nikolai A. Hueting; Martin J. Cryan; Miao Zhang; Hongbo Zhu; Martin Lopez Garcia

doi:10.1109/LPT.2014.2310211

Circular GaN Membrane Gratings

Yongjin Wang^*, Zheng Shi, Xin Li, Martin Lopez-Garcia, Lifeng Chen, Nikolai A. Hueting, Martin J. Cryan, Miao Zhang, Hongbo Zhu, Martin Lopez Garcia

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

14 Citations (Scopus)

Abstract

This letter presents the fabrication and characterization of freestanding circular GaN gratings on a GaN-on-silicon platform. Optical modes propagate within the freestanding GaN membrane and their number decreases as the thickness of GaN membrane is reduced. Backside thinning of freestanding GaN membranes is used to obtain thinner GaN membranes that are helpful to reduce resonance modes and to broaden the reflectance interference fringes in the visible range. Strong coupling between the incident light and the circular grating is confirmed by angular-resolved reflectance measurement. The influences of the grating parameters on the reflectance spectra are investigated. This letter opens the way to fabricate single-layer GaN resonant gratings in the visible wavelength range.

Original language	English
Pages (from-to)	915-918
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	26
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2014.2310211
Publication status	Published - 1 May 2014

Research Groups and Themes

Photonics and Quantum

Keywords

Circular GaN membrane grating
backside thinning
angular resolved microreflectance
LIGHT-EMITTING-DIODES
QUALITY-FACTOR
WAVE-GUIDES

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INTEGRATED LASER INDUCED FLUORESCENCE SYSTEM USING PHOTONIC CRYSTAL CAVITIES
Cryan, M. J. (Principal Investigator)
1/04/09 → 1/04/12
Project: Research

Cite this

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title = "Circular GaN Membrane Gratings",

abstract = "This letter presents the fabrication and characterization of freestanding circular GaN gratings on a GaN-on-silicon platform. Optical modes propagate within the freestanding GaN membrane and their number decreases as the thickness of GaN membrane is reduced. Backside thinning of freestanding GaN membranes is used to obtain thinner GaN membranes that are helpful to reduce resonance modes and to broaden the reflectance interference fringes in the visible range. Strong coupling between the incident light and the circular grating is confirmed by angular-resolved reflectance measurement. The influences of the grating parameters on the reflectance spectra are investigated. This letter opens the way to fabricate single-layer GaN resonant gratings in the visible wavelength range.",

keywords = "Circular GaN membrane grating, backside thinning, angular resolved microreflectance, LIGHT-EMITTING-DIODES, QUALITY-FACTOR, WAVE-GUIDES",

author = "Yongjin Wang and Zheng Shi and Xin Li and Martin Lopez-Garcia and Lifeng Chen and Hueting, {Nikolai A.} and Cryan, {Martin J.} and Miao Zhang and Hongbo Zhu and {Lopez Garcia}, Martin",

year = "2014",

month = may,

day = "1",

doi = "10.1109/LPT.2014.2310211",

language = "English",

volume = "26",

pages = "915--918",

journal = "IEEE Photonics Technology Letters",

issn = "1041-1135",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

number = "9",

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TY - JOUR

T1 - Circular GaN Membrane Gratings

AU - Wang, Yongjin

AU - Shi, Zheng

AU - Li, Xin

AU - Lopez-Garcia, Martin

AU - Chen, Lifeng

AU - Hueting, Nikolai A.

AU - Cryan, Martin J.

AU - Zhang, Miao

AU - Zhu, Hongbo

AU - Lopez Garcia, Martin

PY - 2014/5/1

Y1 - 2014/5/1

N2 - This letter presents the fabrication and characterization of freestanding circular GaN gratings on a GaN-on-silicon platform. Optical modes propagate within the freestanding GaN membrane and their number decreases as the thickness of GaN membrane is reduced. Backside thinning of freestanding GaN membranes is used to obtain thinner GaN membranes that are helpful to reduce resonance modes and to broaden the reflectance interference fringes in the visible range. Strong coupling between the incident light and the circular grating is confirmed by angular-resolved reflectance measurement. The influences of the grating parameters on the reflectance spectra are investigated. This letter opens the way to fabricate single-layer GaN resonant gratings in the visible wavelength range.

AB - This letter presents the fabrication and characterization of freestanding circular GaN gratings on a GaN-on-silicon platform. Optical modes propagate within the freestanding GaN membrane and their number decreases as the thickness of GaN membrane is reduced. Backside thinning of freestanding GaN membranes is used to obtain thinner GaN membranes that are helpful to reduce resonance modes and to broaden the reflectance interference fringes in the visible range. Strong coupling between the incident light and the circular grating is confirmed by angular-resolved reflectance measurement. The influences of the grating parameters on the reflectance spectra are investigated. This letter opens the way to fabricate single-layer GaN resonant gratings in the visible wavelength range.

KW - Circular GaN membrane grating

KW - backside thinning

KW - angular resolved microreflectance

KW - LIGHT-EMITTING-DIODES

KW - QUALITY-FACTOR

KW - WAVE-GUIDES

U2 - 10.1109/LPT.2014.2310211

DO - 10.1109/LPT.2014.2310211

M3 - Article (Academic Journal)

SN - 1041-1135

VL - 26

SP - 915

EP - 918

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 9

ER -

Circular GaN Membrane Gratings

Abstract

Research Groups and Themes

Keywords

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INTEGRATED LASER INDUCED FLUORESCENCE SYSTEM USING PHOTONIC CRYSTAL CAVITIES

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