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Title: Final LDRD report : enhanced spontaneous emission rate in visible III-nitride LEDs using 3D photonic crystal cavities.

Abstract

The fundamental spontaneous emission rate for a photon source can be modified by placing the emitter inside a periodic dielectric structure allowing the emission to be dramatically enhanced or suppressed depending on the intended application. We have investigated the relatively unexplored realm of interaction between semiconductor emitters and three dimensional photonic crystals in the visible spectrum. Although this interaction has been investigated at longer wavelengths, very little work has been done in the visible spectrum. During the course of this LDRD, we have fabricated TiO{sub 2} logpile photonic crystal structures with the shortest wavelength band gap ever demonstrated. A variety of different emitters with emission between 365 nm and 700 nm were incorporated into photonic crystal structures. Time-integrated and time-resolved photoluminescence measurements were performed to measure changes to the spontaneous emission rate. Both enhanced and suppressed emission were demonstrated and attributed to changes to the photonic density of states.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
993884
Report Number(s):
SAND2009-6031
TRN: US201101%%239
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CAVITIES; CRYSTAL STRUCTURE; DIELECTRIC MATERIALS; PHOTOLUMINESCENCE; PHOTONS; WAVELENGTHS

Citation Formats

Fischer, Arthur Joseph, Subramania, Ganapathi S., Coley, Anthony J., Lee, Yun-Ju, Li, Qiming, Wang, George T., Luk, Ting Shan, Koleske, Daniel David, and Fullmer, Kristine Wanta. Final LDRD report : enhanced spontaneous emission rate in visible III-nitride LEDs using 3D photonic crystal cavities.. United States: N. p., 2009. Web. doi:10.2172/993884.
Fischer, Arthur Joseph, Subramania, Ganapathi S., Coley, Anthony J., Lee, Yun-Ju, Li, Qiming, Wang, George T., Luk, Ting Shan, Koleske, Daniel David, & Fullmer, Kristine Wanta. Final LDRD report : enhanced spontaneous emission rate in visible III-nitride LEDs using 3D photonic crystal cavities.. United States. doi:10.2172/993884.
Fischer, Arthur Joseph, Subramania, Ganapathi S., Coley, Anthony J., Lee, Yun-Ju, Li, Qiming, Wang, George T., Luk, Ting Shan, Koleske, Daniel David, and Fullmer, Kristine Wanta. Tue . "Final LDRD report : enhanced spontaneous emission rate in visible III-nitride LEDs using 3D photonic crystal cavities.". United States. doi:10.2172/993884. https://www.osti.gov/servlets/purl/993884.
@article{osti_993884,
title = {Final LDRD report : enhanced spontaneous emission rate in visible III-nitride LEDs using 3D photonic crystal cavities.},
author = {Fischer, Arthur Joseph and Subramania, Ganapathi S. and Coley, Anthony J. and Lee, Yun-Ju and Li, Qiming and Wang, George T. and Luk, Ting Shan and Koleske, Daniel David and Fullmer, Kristine Wanta},
abstractNote = {The fundamental spontaneous emission rate for a photon source can be modified by placing the emitter inside a periodic dielectric structure allowing the emission to be dramatically enhanced or suppressed depending on the intended application. We have investigated the relatively unexplored realm of interaction between semiconductor emitters and three dimensional photonic crystals in the visible spectrum. Although this interaction has been investigated at longer wavelengths, very little work has been done in the visible spectrum. During the course of this LDRD, we have fabricated TiO{sub 2} logpile photonic crystal structures with the shortest wavelength band gap ever demonstrated. A variety of different emitters with emission between 365 nm and 700 nm were incorporated into photonic crystal structures. Time-integrated and time-resolved photoluminescence measurements were performed to measure changes to the spontaneous emission rate. Both enhanced and suppressed emission were demonstrated and attributed to changes to the photonic density of states.},
doi = {10.2172/993884},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {9}
}

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