Refractive Index Gas Sensing in a Hollow Photonic Crystal Cavity

被引：0

作者：

Jagerska, J. ^{[1
]}

Le Thomas, N. ^{[1
]}

Zhang, H. ^{[1
]}

Diao, Z. ^{[1
]}

Houdre, R. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Stn 3, FSB, Inst Phys Mat Condensee, CH-1015 Lausanne, Switzerland

来源：

2010 12TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON) | 2011年

关键词：

Photonic crystals; air-slot waveguide; refractive index sensing; CARBON-DIOXIDE; LINE-DEFECT; LIGHT; NANOCAVITIES; NITROGEN;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We investigate hollow photonic crystal structures consisting in air-slot photonic crystal nanocavities. The high quality factor similar to 2.6x10(4) of such cavities along with a strong overlap between the resonant mode and the hollow core region allows for a strong interaction with an optically active medium in the air slot. This is illustrated in achieving highly sensitive refractive index sensing of a gas infiltrated in the slot. An experimental sensitivity of 610 nm per refractive index unit (RUI) and a detection limit below 1x10(-5) RUI are demonstrated. The device has a remarkably low sensing volume of 40 attoliters, which at atmospheric pressure and room temperature contains as little as 1x10(6) molecules.

引用

页数：4

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