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ZnO Nanoribbon Microcavity Lasers
Author(s) -
Yan H.,
Johnson J.,
Law M.,
He R.,
Knutsen K.,
McKinney J.R.,
Pham J.,
Saykally R.,
Yang P.
Publication year - 2003
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200305490
Subject(s) - lasing threshold , materials science , ribbon , laser , saturation (graph theory) , optoelectronics , q factor , optics , spectral line , optical microcavity , condensed matter physics , resonator , wavelength , physics , composite material , mathematics , combinatorics , astronomy
ZnO nanoribbons with pseudo‐rectangular cross‐sections (see Figure) are demonstarted to be excellent microcavities with a high quality factor (∼ 3000). The lasing threshold is shown to be inversely proportional to the length of the ribbon for pumping intensities lower than the saturation region. Analysis of the emission spectra points to the possibility of the existence of both pure axial modes and “bow‐tie” cavity modes.