Local tuning of photonic crystal nanocavity modes by laser-assisted oxidation

H.S. Lee; S. Kiravittaya; S. Kumar; J.D. Plumhof; L.P. Balet; L.H. Li; M. Francardi; A. Gerardino; A. Fiore; A. Rastelli; O.G. Schmidt

doi:10.1063/1.3262961

Local tuning of photonic crystal nanocavity modes by laser-assisted oxidation

H.S. Lee, S. Kiravittaya, S. Kumar, J.D. Plumhof, L.P. Balet, L.H. Li, M. Francardi, A. Gerardino, A. Fiore, A. Rastelli, O.G. Schmidt

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Abstract

The authors demonstrate a simple method to achieve local tuning of optical modes in GaAs photonic crystal nanocavities by continuous wave laser-assisted oxidation in air atmosphere. By irradiation with a focused laser beam at power levels of a few tens of milliwatts, photonic crystal nanocavity modes shift to shorter wavelengths by up to 2.5 nm. The mode shifts can be controlled either by varying the laser power or by iterating laser-assisted oxidation steps and are well explained by finite-element-method and finite-difference time-domain simulations. This method provides a simple route to achieve fine spectral tuning of individual nanocavities for photonic devices.

Original language	English
Article number	191109
Number of pages	3
Journal	Applied Physics Letters
Volume	95
Issue number	19
DOIs	https://doi.org/10.1063/1.3262961
Publication status	Published - 2009

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title = "Local tuning of photonic crystal nanocavity modes by laser-assisted oxidation",

abstract = "The authors demonstrate a simple method to achieve local tuning of optical modes in GaAs photonic crystal nanocavities by continuous wave laser-assisted oxidation in air atmosphere. By irradiation with a focused laser beam at power levels of a few tens of milliwatts, photonic crystal nanocavity modes shift to shorter wavelengths by up to 2.5 nm. The mode shifts can be controlled either by varying the laser power or by iterating laser-assisted oxidation steps and are well explained by finite-element-method and finite-difference time-domain simulations. This method provides a simple route to achieve fine spectral tuning of individual nanocavities for photonic devices.",

author = "H.S. Lee and S. Kiravittaya and S. Kumar and J.D. Plumhof and L.P. Balet and L.H. Li and M. Francardi and A. Gerardino and A. Fiore and A. Rastelli and O.G. Schmidt",

year = "2009",

doi = "10.1063/1.3262961",

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T1 - Local tuning of photonic crystal nanocavity modes by laser-assisted oxidation

AU - Lee, H.S.

AU - Kiravittaya, S.

AU - Kumar, S.

AU - Plumhof, J.D.

AU - Balet, L.P.

AU - Li, L.H.

AU - Francardi, M.

AU - Gerardino, A.

AU - Fiore, A.

AU - Rastelli, A.

AU - Schmidt, O.G.

PY - 2009

Y1 - 2009

N2 - The authors demonstrate a simple method to achieve local tuning of optical modes in GaAs photonic crystal nanocavities by continuous wave laser-assisted oxidation in air atmosphere. By irradiation with a focused laser beam at power levels of a few tens of milliwatts, photonic crystal nanocavity modes shift to shorter wavelengths by up to 2.5 nm. The mode shifts can be controlled either by varying the laser power or by iterating laser-assisted oxidation steps and are well explained by finite-element-method and finite-difference time-domain simulations. This method provides a simple route to achieve fine spectral tuning of individual nanocavities for photonic devices.

AB - The authors demonstrate a simple method to achieve local tuning of optical modes in GaAs photonic crystal nanocavities by continuous wave laser-assisted oxidation in air atmosphere. By irradiation with a focused laser beam at power levels of a few tens of milliwatts, photonic crystal nanocavity modes shift to shorter wavelengths by up to 2.5 nm. The mode shifts can be controlled either by varying the laser power or by iterating laser-assisted oxidation steps and are well explained by finite-element-method and finite-difference time-domain simulations. This method provides a simple route to achieve fine spectral tuning of individual nanocavities for photonic devices.

U2 - 10.1063/1.3262961

DO - 10.1063/1.3262961

M3 - Article

SN - 0003-6951

VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 19

M1 - 191109

ER -

Local tuning of photonic crystal nanocavity modes by laser-assisted oxidation

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