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Engineering the Self‐Assembly of DCM Dyes into Whispering‐Gallery‐Mode μ‐Hemispheres and Fabry–Pèrot‐Type μ‐Rods for Visible–NIR (600–875 nm) Range Optical Microcavities
Author(s) -
Venkatakrishnarao Dasari,
Chandrasekar Rajadurai
Publication year - 2016
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201500362
Subject(s) - resonator , materials science , whispering gallery wave , rod , fabry–pérot interferometer , hexagonal crystal system , range (aeronautics) , simple (philosophy) , type (biology) , optics , optoelectronics , physics , crystallography , composite material , medicine , wavelength , alternative medicine , pathology , ecology , philosophy , chemistry , epistemology , biology
A simple self‐assembly technique is presented to engineer two structurally different optical resonators from red emitting DCM dye molecule via simple concentration variation. The resultant 0D μ‐hemispheres and 1D elongated μ‐rods act as whispering‐gallery and Fabry–Pèrot‐type resonators. The quality factors ( Q ) are in the range of ≈3.5–7.2 × 10 2 , which are very high for a DCM dye in the J ‐aggregated state.