Structural and performance evaluation of gallium nitride micro-LED arrays via multiphoton fluorescence imaging

G. McConnell, E. Gu, C. Griffin, C.W. Jeon, H.W. Choi, J.M. Girkin, M.D. Dawson

Research output: Contribution to conferencePaper

Abstract

We present a simple and powerful two-photon fluorescence imaging technique for noninvasive spatial evaluation of the gallium nitride (GaN) based structure deep within a micro- LED array. The GaN based heterostructure was excited via two-photon absorption and the resulting fluorescence was used to generate optical sections and three-dimensional representations of the active medium within the sample. Furthermore, by supplying current to the sample while imaging, this method was found to permit simple quantitative measurements of the operational and emission characteristics of the device.
LanguageEnglish
Publication statusUnpublished - 16 Apr 2003
EventFocus on Microscopy - Genova, Italy
Duration: 13 Apr 200316 Apr 2003

Conference

ConferenceFocus on Microscopy
CityGenova, Italy
Period13/04/0316/04/03

Fingerprint

gallium nitrides
light emitting diodes
fluorescence
evaluation
supplying
photons
imaging techniques

Keywords

  • two-photon excitation
  • optical sectioning
  • gallium nitride
  • microstructure

Cite this

McConnell, G., Gu, E., Griffin, C., Jeon, C. W., Choi, H. W., Girkin, J. M., & Dawson, M. D. (2003). Structural and performance evaluation of gallium nitride micro-LED arrays via multiphoton fluorescence imaging. Paper presented at Focus on Microscopy, Genova, Italy, .
McConnell, G. ; Gu, E. ; Griffin, C. ; Jeon, C.W. ; Choi, H.W. ; Girkin, J.M. ; Dawson, M.D. / Structural and performance evaluation of gallium nitride micro-LED arrays via multiphoton fluorescence imaging. Paper presented at Focus on Microscopy, Genova, Italy, .
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McConnell, G, Gu, E, Griffin, C, Jeon, CW, Choi, HW, Girkin, JM & Dawson, MD 2003, 'Structural and performance evaluation of gallium nitride micro-LED arrays via multiphoton fluorescence imaging' Paper presented at Focus on Microscopy, Genova, Italy, 13/04/03 - 16/04/03, .

Structural and performance evaluation of gallium nitride micro-LED arrays via multiphoton fluorescence imaging. / McConnell, G.; Gu, E.; Griffin, C.; Jeon, C.W.; Choi, H.W.; Girkin, J.M.; Dawson, M.D.

2003. Paper presented at Focus on Microscopy, Genova, Italy, .

Research output: Contribution to conferencePaper

TY - CONF

T1 - Structural and performance evaluation of gallium nitride micro-LED arrays via multiphoton fluorescence imaging

AU - McConnell, G.

AU - Gu, E.

AU - Griffin, C.

AU - Jeon, C.W.

AU - Choi, H.W.

AU - Girkin, J.M.

AU - Dawson, M.D.

PY - 2003/4/16

Y1 - 2003/4/16

N2 - We present a simple and powerful two-photon fluorescence imaging technique for noninvasive spatial evaluation of the gallium nitride (GaN) based structure deep within a micro- LED array. The GaN based heterostructure was excited via two-photon absorption and the resulting fluorescence was used to generate optical sections and three-dimensional representations of the active medium within the sample. Furthermore, by supplying current to the sample while imaging, this method was found to permit simple quantitative measurements of the operational and emission characteristics of the device.

AB - We present a simple and powerful two-photon fluorescence imaging technique for noninvasive spatial evaluation of the gallium nitride (GaN) based structure deep within a micro- LED array. The GaN based heterostructure was excited via two-photon absorption and the resulting fluorescence was used to generate optical sections and three-dimensional representations of the active medium within the sample. Furthermore, by supplying current to the sample while imaging, this method was found to permit simple quantitative measurements of the operational and emission characteristics of the device.

KW - two-photon excitation

KW - optical sectioning

KW - gallium nitride

KW - microstructure

UR - http://www.focusonmicroscopy.org/2003/program.html

UR - http://www.focusonmicroscopy.org/2003/abstracts/096-McConnell.pdf

M3 - Paper

ER -

McConnell G, Gu E, Griffin C, Jeon CW, Choi HW, Girkin JM et al. Structural and performance evaluation of gallium nitride micro-LED arrays via multiphoton fluorescence imaging. 2003. Paper presented at Focus on Microscopy, Genova, Italy, .