TY - JOUR
T1 - Enhanced light extraction by photonic quasi-crystals in GaN blue LEDs
AU - Shields, Philip A.
AU - Charlton, Martin D. B.
AU - Lee, Tom
AU - Zoorob, Majd E.
AU - Allsopp, Duncan W. E.
AU - Wang, Wang Nang
PY - 2009/7
Y1 - 2009/7
N2 - The far-field profile of photonic quasi-crystal patterned and unpatterned LEDs, fabricated from commercial epitaxial substrates by electron beam lithography, has been measured prior to lapping and dicing. Emission enhancements reach a maximum of 62%, and are strongly dependent on the filling factor. Qualitative agreement is achieved between 2-D finite-difference time-domain calculations and the experimental data.
AB - The far-field profile of photonic quasi-crystal patterned and unpatterned LEDs, fabricated from commercial epitaxial substrates by electron beam lithography, has been measured prior to lapping and dicing. Emission enhancements reach a maximum of 62%, and are strongly dependent on the filling factor. Qualitative agreement is achieved between 2-D finite-difference time-domain calculations and the experimental data.
KW - Finite difference time domain method
KW - Light emission
KW - Photonic crystals
KW - Light
KW - Electroluminescence
KW - Electron beams
UR - http://www.scopus.com/inward/record.url?scp=70349338899&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1109/JSTQE.2009.2016674
U2 - 10.1109/JSTQE.2009.2016674
DO - 10.1109/JSTQE.2009.2016674
M3 - Article
SN - 1077-260X
VL - 15
SP - 1269
EP - 1274
JO - IEEE Journal of Selected Topics in Quantum Electronics
JF - IEEE Journal of Selected Topics in Quantum Electronics
IS - 4
ER -