One-dimensional photonic crystal fishbone hybrid nanocavity with nanoposts

Tsan Wen Lu; Pin Tso Lin; Po Tsung Lee

doi:10.1063/1.4876755

One-dimensional photonic crystal fishbone hybrid nanocavity with nanoposts

Tsan Wen Lu, Pin Tso Lin, Po Tsung Lee

Department of Photonics

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We propose and investigate a one-dimensional photonic crystal (PhC) fishbone (FB) hybrid nanocavity lying on silver substrate with a horizontal air slot. With very few PhC periods, the confined transverse-magnetic, TM ₁₀ hybrid mode concentrated within the air slot shows high quality factor over effective mode volume ratio larger than 10⁵λ ^-3. Most importantly, this FB hybrid nanocavity allows formation of low-index nanoposts within the air slot without significantly affecting the mode properties. These nanoposts guarantee the structural stabilities under different environmental perturbations. Furthermore, capabilities of our proposed design in serving as optical sensors and tweezers for bio-sized nanoparticles are also investigated.

Original language	English
Article number	191107
Journal	Applied Physics Letters
Volume	104
Issue number	19
DOIs	https://doi.org/10.1063/1.4876755
State	Published - 12 May 2014

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title = "One-dimensional photonic crystal fishbone hybrid nanocavity with nanoposts",

abstract = "We propose and investigate a one-dimensional photonic crystal (PhC) fishbone (FB) hybrid nanocavity lying on silver substrate with a horizontal air slot. With very few PhC periods, the confined transverse-magnetic, TM 10 hybrid mode concentrated within the air slot shows high quality factor over effective mode volume ratio larger than 105λ -3. Most importantly, this FB hybrid nanocavity allows formation of low-index nanoposts within the air slot without significantly affecting the mode properties. These nanoposts guarantee the structural stabilities under different environmental perturbations. Furthermore, capabilities of our proposed design in serving as optical sensors and tweezers for bio-sized nanoparticles are also investigated.",

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AU - Lin, Pin Tso

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N2 - We propose and investigate a one-dimensional photonic crystal (PhC) fishbone (FB) hybrid nanocavity lying on silver substrate with a horizontal air slot. With very few PhC periods, the confined transverse-magnetic, TM 10 hybrid mode concentrated within the air slot shows high quality factor over effective mode volume ratio larger than 105λ -3. Most importantly, this FB hybrid nanocavity allows formation of low-index nanoposts within the air slot without significantly affecting the mode properties. These nanoposts guarantee the structural stabilities under different environmental perturbations. Furthermore, capabilities of our proposed design in serving as optical sensors and tweezers for bio-sized nanoparticles are also investigated.

AB - We propose and investigate a one-dimensional photonic crystal (PhC) fishbone (FB) hybrid nanocavity lying on silver substrate with a horizontal air slot. With very few PhC periods, the confined transverse-magnetic, TM 10 hybrid mode concentrated within the air slot shows high quality factor over effective mode volume ratio larger than 105λ -3. Most importantly, this FB hybrid nanocavity allows formation of low-index nanoposts within the air slot without significantly affecting the mode properties. These nanoposts guarantee the structural stabilities under different environmental perturbations. Furthermore, capabilities of our proposed design in serving as optical sensors and tweezers for bio-sized nanoparticles are also investigated.

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One-dimensional photonic crystal fishbone hybrid nanocavity with nanoposts

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