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Surface plasmon enhanced bright light emission from InGaN/GaN
Author(s) -
Okamoto Koichi,
Niki Isamu,
Shvartser Alexander,
Maltezos George,
Narukawa Yukio,
Mukai Takashi,
Kawakami Yoichi,
Scherer Axel
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200674856
Subject(s) - photoluminescence , optoelectronics , materials science , surface plasmon , quantum well , coupling (piping) , plasmon , grating , green light , light emission , blue light , optics , physics , metallurgy , laser
Surface plasmon (SP) coupling technique was used to enhance blue and green light emissions from InGaN/GaN quantum wells (QWs). Large enhancement of photoluminescence (PL) of both blue and green emissions was observed with silver coated samples, whereas the enhancements were not so effective for the gold coated samples. We could obtain well enhanced green emission by tuning the matching condition of QW‐SP coupling with nano‐grating structures at gold layers. This method should be useful to design even more efficient structures and to fabricate super bright light emitting devices. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)