One-dimensional photonic crystal fishbone hybrid nanocavity with nanoposts

Journal Article · Mon May 12 04:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4876755· OSTI ID:22273411

Lu, Tsan-Wen; Lin, Pin-Tso; Lee, Po-Tsung ^[1]

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1. Department of Photonics and Institute of Electro-Optical Engineering, National Chiao Tung University, Rm. 413 CPT Building, 1001 Ta-Hsueh Road, Hsinchu 30010, Taiwan (China)

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{sub 10} hybrid mode concentrated within the air slot shows high quality factor over effective mode volume ratio larger than 10{sup 5}λ{sup −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.

• OSTI ID: 22273411
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 19 Vol. 104; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
CRYSTALS
NANOSTRUCTURES
OPTICAL PROPERTIES
QUALITY FACTOR
SILVER