Integrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides

We report a new method of accurately measuring the mid-infrared absorption of fluid analytes using on-chip waveguides that allows measurements to be referenced for noise and drift reduction whilst using only a single external detector. A silicon-on-insulator waveguide circuit integrated with a micro...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yanli Qi, Zhexuan Zheng, Mehdi Banakar, Yangbo Wu, Anushka Gangnaik, David Rowe, Vinita Mittal, Jonathan Butement, James Wilkinson, Goran Mashanovich, Milos Nedeljkovic
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Mid-infrared silicon photonics optical switching microfluidics absorption spectroscopy Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
Acceso en línea:	https://doaj.org/article/6365d06c7a924bc798aef4ed9437dc6e
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6365d06c7a924bc798aef4ed9437dc6e
record_format	dspace
spelling	oai:doaj.org-article:6365d06c7a924bc798aef4ed9437dc6e2021-11-18T00:00:08ZIntegrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides1943-065510.1109/JPHOT.2021.3121331https://doaj.org/article/6365d06c7a924bc798aef4ed9437dc6e2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9580667/https://doaj.org/toc/1943-0655We report a new method of accurately measuring the mid-infrared absorption of fluid analytes using on-chip waveguides that allows measurements to be referenced for noise and drift reduction whilst using only a single external detector. A silicon-on-insulator waveguide circuit integrated with a microfluidic channel is made in which a pair of switches alternate light between an evanescent absorption sensor waveguide and a reference waveguide at a rate of a few kHz, thus allowing low frequency common noise components to be removed from the measurement, and leading to a reduction in the noise floor by a factor of 11 compared to a simple waveguide absorption sensor. The device was verified by using it to detect an Isopropyl alcohol (IPA) absorption peak at a wavelength of 3.77 µm.Yanli QiZhexuan ZhengMehdi BanakarYangbo WuAnushka GangnaikDavid RoweVinita MittalJonathan ButementJames WilkinsonGoran MashanovichMilos NedeljkovicIEEEarticleMid-infraredsilicon photonicsoptical switchingmicrofluidicsabsorption spectroscopyApplied optics. PhotonicsTA1501-1820Optics. LightQC350-467ENIEEE Photonics Journal, Vol 13, Iss 6, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Mid-infrared silicon photonics optical switching microfluidics absorption spectroscopy Applied optics. Photonics TA1501-1820 Optics. Light QC350-467
spellingShingle	Mid-infrared silicon photonics optical switching microfluidics absorption spectroscopy Applied optics. Photonics TA1501-1820 Optics. Light QC350-467 Yanli Qi Zhexuan Zheng Mehdi Banakar Yangbo Wu Anushka Gangnaik David Rowe Vinita Mittal Jonathan Butement James Wilkinson Goran Mashanovich Milos Nedeljkovic Integrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides
description	We report a new method of accurately measuring the mid-infrared absorption of fluid analytes using on-chip waveguides that allows measurements to be referenced for noise and drift reduction whilst using only a single external detector. A silicon-on-insulator waveguide circuit integrated with a microfluidic channel is made in which a pair of switches alternate light between an evanescent absorption sensor waveguide and a reference waveguide at a rate of a few kHz, thus allowing low frequency common noise components to be removed from the measurement, and leading to a reduction in the noise floor by a factor of 11 compared to a simple waveguide absorption sensor. The device was verified by using it to detect an Isopropyl alcohol (IPA) absorption peak at a wavelength of 3.77 µm.
format	article
author	Yanli Qi Zhexuan Zheng Mehdi Banakar Yangbo Wu Anushka Gangnaik David Rowe Vinita Mittal Jonathan Butement James Wilkinson Goran Mashanovich Milos Nedeljkovic
author_facet	Yanli Qi Zhexuan Zheng Mehdi Banakar Yangbo Wu Anushka Gangnaik David Rowe Vinita Mittal Jonathan Butement James Wilkinson Goran Mashanovich Milos Nedeljkovic
author_sort	Yanli Qi
title	Integrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides
title_short	Integrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides
title_full	Integrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides
title_fullStr	Integrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides
title_full_unstemmed	Integrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides
title_sort	integrated switching circuit for low-noise self-referenced mid-infrared absorption sensing using silicon waveguides
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/6365d06c7a924bc798aef4ed9437dc6e
work_keys_str_mv	AT yanliqi integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT zhexuanzheng integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT mehdibanakar integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT yangbowu integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT anushkagangnaik integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT davidrowe integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT vinitamittal integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT jonathanbutement integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT jameswilkinson integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT goranmashanovich integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides AT milosnedeljkovic integratedswitchingcircuitforlownoiseselfreferencedmidinfraredabsorptionsensingusingsiliconwaveguides
_version_	1718425285973508096

Integrated Switching Circuit for Low-Noise Self-Referenced Mid-Infrared Absorption Sensing Using Silicon Waveguides

Ejemplares similares