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Title: Local thermal resonance control of GaInP photonic crystal membrane cavities using ambient gas cooling

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4919386· OSTI ID:22398953
; ; ;  [1]; ; ;  [2]
  1. Complex Photonic Systems (COPS), MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede (Netherlands)
  2. Thales Research and Technology, Route Départementale 128, 91767 Palaiseau (France)

We perform spatially dependent tuning of a GaInP photonic crystal cavity using a continuous wave violet laser. Local tuning is obtained by laser heating of the photonic crystal membrane. The cavity resonance shift is measured for different pump positions and for two ambient gases: He and N{sub 2}. We find that the width of the temperature profile induced in the membrane depends strongly on the thermal conductivity of the ambient gas. For He gas, a narrow spatial width of the temperature profile of 2.8 μm is predicted and verified in experiment.

OSTI ID:
22398953
Journal Information:
Applied Physics Letters, Vol. 106, Issue 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
Country of Publication:
United States
Language:
English