Thermally controllable silicon photonic crystal nanobeam cavity without surface cladding for sensing applications

William S. Fegadolli; Nicola Pavarelli; Peter O'Brien; Samuel Njoroge; Vilson R. Almeida; Axel Scherer

doi:10.1021/ph5004863

Thermally controllable silicon photonic crystal nanobeam cavity without surface cladding for sensing applications

William S. Fegadolli
, Nicola Pavarelli
, Peter O'Brien
, Samuel Njoroge
, Vilson R. Almeida
, Axel Scherer

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

Abstract

Photonic crystal nanobeam cavities with high-quality factors are very sensitive to the dielectric properties of their surroundings. Combining this high sensitivity with a specially designed heater, we experimentally demonstrate a very sensitive optical sensor, capable of simultaneously providing heat and interrogating the refractive index of its surroundings. The structure presents experimental sensitivity of 98 nm/RIU and signal-to-noise ratio of 3.88 × 10^-4 RIU and provides approximately 100 °C of temperature variation in the sensing area, with a temperature switching time of a few microseconds.

Original language	English
Pages (from-to)	470-474
Number of pages	5
Journal	ACS Photonics
Volume	2
Issue number	4
DOIs	https://doi.org/10.1021/ph5004863
Publication status	Published - 15 Apr 2015

Keywords

integrated optics
optical sensing
photonic crystal nanobeam cavity
silicon photonics

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10.1021/ph5004863

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title = "Thermally controllable silicon photonic crystal nanobeam cavity without surface cladding for sensing applications",

abstract = "Photonic crystal nanobeam cavities with high-quality factors are very sensitive to the dielectric properties of their surroundings. Combining this high sensitivity with a specially designed heater, we experimentally demonstrate a very sensitive optical sensor, capable of simultaneously providing heat and interrogating the refractive index of its surroundings. The structure presents experimental sensitivity of 98 nm/RIU and signal-to-noise ratio of 3.88 × 10-4 RIU and provides approximately 100 °C of temperature variation in the sensing area, with a temperature switching time of a few microseconds.",

keywords = "integrated optics, optical sensing, photonic crystal nanobeam cavity, silicon photonics",

author = "Fegadolli, \{William S.\} and Nicola Pavarelli and Peter O'Brien and Samuel Njoroge and Almeida, \{Vilson R.\} and Axel Scherer",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

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doi = "10.1021/ph5004863",

language = "English",

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T1 - Thermally controllable silicon photonic crystal nanobeam cavity without surface cladding for sensing applications

AU - Fegadolli, William S.

AU - Pavarelli, Nicola

AU - O'Brien, Peter

AU - Njoroge, Samuel

AU - Almeida, Vilson R.

AU - Scherer, Axel

PY - 2015/4/15

Y1 - 2015/4/15

N2 - Photonic crystal nanobeam cavities with high-quality factors are very sensitive to the dielectric properties of their surroundings. Combining this high sensitivity with a specially designed heater, we experimentally demonstrate a very sensitive optical sensor, capable of simultaneously providing heat and interrogating the refractive index of its surroundings. The structure presents experimental sensitivity of 98 nm/RIU and signal-to-noise ratio of 3.88 × 10-4 RIU and provides approximately 100 °C of temperature variation in the sensing area, with a temperature switching time of a few microseconds.

AB - Photonic crystal nanobeam cavities with high-quality factors are very sensitive to the dielectric properties of their surroundings. Combining this high sensitivity with a specially designed heater, we experimentally demonstrate a very sensitive optical sensor, capable of simultaneously providing heat and interrogating the refractive index of its surroundings. The structure presents experimental sensitivity of 98 nm/RIU and signal-to-noise ratio of 3.88 × 10-4 RIU and provides approximately 100 °C of temperature variation in the sensing area, with a temperature switching time of a few microseconds.

KW - integrated optics

KW - optical sensing

KW - photonic crystal nanobeam cavity

KW - silicon photonics

UR - https://www.scopus.com/pages/publications/84927750011

U2 - 10.1021/ph5004863

DO - 10.1021/ph5004863

M3 - Article

AN - SCOPUS:84927750011

SN - 2330-4022

VL - 2

SP - 470

EP - 474

JO - ACS Photonics

JF - ACS Photonics

IS - 4

ER -

Thermally controllable silicon photonic crystal nanobeam cavity without surface cladding for sensing applications

Abstract

Keywords

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