Dependence of the Spontaneous Luminescence Intensity in ZnO Nanorods on their Length

Autor:	A. N. Red’kin, A. N. Gruzintsev, E. E. Yakimov
Rok vydání:	2019
Předmět:	010302 applied physics Materials science 02 engineering and technology Purcell effect 021001 nanoscience & nanotechnology Condensed Matter Physics medicine.disease_cause Laser 01 natural sciences Molecular physics Atomic and Molecular Physics and Optics Rod Electronic Optical and Magnetic Materials law.invention law 0103 physical sciences Microscopy medicine Spontaneous emission Nanorod 0210 nano-technology Luminescence Ultraviolet
Zdroj:	Semiconductors. 53:1060-1065
ISSN:	1090-6479 1063-7826
DOI:	10.1134/s1063782619080086
Popis:	The influence of the length of ZnO nanorods (500 nm in diameter) on the mode structure and spontaneous luminescence in the ultraviolet spectral region is studied by optical luminescence microscopy. It is shown that individual nanorods with a metal mirror on one face exhibit only two or three laser modes in the case of short nanocavity lengths (8–30 μm). Different values of the optical losses of the longitudinal and transverse waveguide modes are established for a ZnO nanorod lying on a glassy substrate. The quadratic dependence of the spontaneous luminescence intensity on the rod length can be attributed to improvement of the optical quality factor Q of bound longitudinal modes of light within longer rods (the Purcell effect).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::77fc0e002ed3addabf5f730e8401727b https://doi.org/10.1134/s1063782619080086 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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