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Title: Improvement of fluorescence intensity of nitrogen vacancy centers in self-formed diamond microstructures

We present umbrella-shaped diamond microstructures with metal mirrors at the bottom in order to improve the amount of collected photons from nitrogen vacancy centers. The metal mirrors at the bottom are self-aligned to the umbrella-shaped diamond microstructures which are selectively grown through holes created on a metal mask. By the finite-difference time-domain simulations, we found that the umbrella-shaped microstructures, which have an effect similar to solid immersion lens, could collect photons more efficiently than bulk or pillar-shaped microstructures. Improvement of the fluorescence intensity by factors of from 3 to 5 is shown experimentally.
Authors:
; ;  [1] ; ; ; ; ;  [1] ;  [2]
  1. Department of Physical Electronics, Tokyo Institute of Technology, Tokyo 152-8552 (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22485942
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 16; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; DIAMONDS; FLUORESCENCE; METALS; MICROSTRUCTURE; MIRRORS; NITROGEN; PHOTONS; SIMULATION; SOLIDS; VACANCIES