Time-resolved ultraviolet near-field scanning optical microscope for characterizing photoluminescence lifetime of light-emitting devices.
J Nanosci Nanotechnol
; 13(3): 1798-801, 2013 Mar.
Article
em En
| MEDLINE
| ID: mdl-23755594
ABSTRACT
We developed a instrument consisting of an ultraviolet (UV) near-field scanning optical microscope (NSOM) combined with time-correlated single photon counting, which allows efficient observation of temporal dynamics of near-field photoluminescence (PL) down to the sub-wavelength scale. The developed time-resolved UV NSOM system showed a spatial resolution of 110 nm and a temporal resolution of 130 ps in the optical signal. The proposed microscope system was successfully demonstrated by characterizing the near-field PL lifetime of InGaN/GaN multiple quantum wells.
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MEDLINE
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article