Fine-tuning of whispering gallery modes in on-chip silica microdisk resonators within a full spectral range
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Date
2013
Authors
Henze, Rico
Pyrlik, Christoph
Thies, Andreas
Ward, Jonathan M.
Wicht, Andreas
Benson, Oliver
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AIP Publishing
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Abstract
We investigate an efficient method for fine-tuning whispering gallery mode resonances in disk-type silica microresonators to reach an arbitrary frequency within the free spectral range of the system. This method is based on a post-production hydrofluoric acid etching process to precisely resize the radius of such microresonators. We show the effectiveness of this approach by tuning their resonance frequency within 10 GHz of specific hydrogen cyanide reference lines (P16, P18). This technique allows for simple and exact matching of narrow-linewidth lasers or spectroscopic lines with the high-Q resonances of on-chip silica microresonators. (C) 2013 American Institute of Physics. (http://dx.doi.org/10.1063/1.4789755)
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Keywords
Refractive-index , Microspheres , Glass , Etching , Optical resonators , Silica , Laser resonators , Whispering gallery wave modes
Citation
Henze, R., Pyrlik, C., Thies, A., Ward, J. M., Wicht, A. and Benson, O. (2013) 'Fine-tuning of whispering gallery modes in on-chip silica microdisk resonators within a full spectral range', Applied Physics Letters, 102(4), pp. 041104. doi: 10.1063/1.4789755
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© 2013 American Institute of Physics.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Henze, R., Pyrlik, C., Thies, A., Ward, J. M., Wicht, A. and Benson, O. (2013) 'Fine-tuning of whispering gallery modes in on-chip silica microdisk resonators within a full spectral range', Applied Physics Letters, 102(4), pp. 041104 and may be found at http://aip.scitation.org/doi/abs/10.1063/1.4789755