New optical detection techniques for chemical sensors

Sergio B. Mendes; Seppo Honkanen; Mahmoud Fallahi; Nasser Peyghambarian

doi:10.1117/12.308385

New optical detection techniques for chemical sensors

Sergio B. Mendes, Seppo Honkanen, Mahmoud Fallahi, Nasser Peyghambarian

Research output: Contribution to journal › Conference article › peer-review

Abstract

In this work we present three novel optical approaches towards the implementation of bio- and chemical sensors. First we describe an absorbance spectroscopic technique developed on a waveguide platform that features a sensitivity enhancement of 4 orders of magnitude compared to the conventional transmission measurements of ultra-thin films. Next we show a waveguide Zeeman interferometric technique, which is based on the relative phase change between the TE and TM waveguide modes, applied as a sensor platform. Finally an external-cavity laser, a semiconductor laser combined with a single mode optical fiber and a Bragg grating reflector, was built to work as an active sensor where the analyte species were incorporated inside the resonant cavity to increase sensitivity.

Original language	English (US)
Pages (from-to)	42-49
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3270
DOIs	https://doi.org/10.1117/12.308385
State	Published - 1998
Event	Methods for Ultrasensitive Detection - San Jose, CA, United States Duration: Jan 26 1998 → Jan 28 1998

Keywords

Evanescent wave
Integrated optics
Optical fiber
Semiconductor laser
Sensor
Waveguide

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.308385

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title = "New optical detection techniques for chemical sensors",

abstract = "In this work we present three novel optical approaches towards the implementation of bio- and chemical sensors. First we describe an absorbance spectroscopic technique developed on a waveguide platform that features a sensitivity enhancement of 4 orders of magnitude compared to the conventional transmission measurements of ultra-thin films. Next we show a waveguide Zeeman interferometric technique, which is based on the relative phase change between the TE and TM waveguide modes, applied as a sensor platform. Finally an external-cavity laser, a semiconductor laser combined with a single mode optical fiber and a Bragg grating reflector, was built to work as an active sensor where the analyte species were incorporated inside the resonant cavity to increase sensitivity.",

keywords = "Evanescent wave, Integrated optics, Optical fiber, Semiconductor laser, Sensor, Waveguide",

author = "Mendes, {Sergio B.} and Seppo Honkanen and Mahmoud Fallahi and Nasser Peyghambarian",

year = "1998",

doi = "10.1117/12.308385",

language = "English (US)",

volume = "3270",

pages = "42--49",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Methods for Ultrasensitive Detection ; Conference date: 26-01-1998 Through 28-01-1998",

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TY - JOUR

T1 - New optical detection techniques for chemical sensors

AU - Mendes, Sergio B.

AU - Honkanen, Seppo

AU - Fallahi, Mahmoud

AU - Peyghambarian, Nasser

PY - 1998

Y1 - 1998

N2 - In this work we present three novel optical approaches towards the implementation of bio- and chemical sensors. First we describe an absorbance spectroscopic technique developed on a waveguide platform that features a sensitivity enhancement of 4 orders of magnitude compared to the conventional transmission measurements of ultra-thin films. Next we show a waveguide Zeeman interferometric technique, which is based on the relative phase change between the TE and TM waveguide modes, applied as a sensor platform. Finally an external-cavity laser, a semiconductor laser combined with a single mode optical fiber and a Bragg grating reflector, was built to work as an active sensor where the analyte species were incorporated inside the resonant cavity to increase sensitivity.

AB - In this work we present three novel optical approaches towards the implementation of bio- and chemical sensors. First we describe an absorbance spectroscopic technique developed on a waveguide platform that features a sensitivity enhancement of 4 orders of magnitude compared to the conventional transmission measurements of ultra-thin films. Next we show a waveguide Zeeman interferometric technique, which is based on the relative phase change between the TE and TM waveguide modes, applied as a sensor platform. Finally an external-cavity laser, a semiconductor laser combined with a single mode optical fiber and a Bragg grating reflector, was built to work as an active sensor where the analyte species were incorporated inside the resonant cavity to increase sensitivity.

KW - Evanescent wave

KW - Integrated optics

KW - Optical fiber

KW - Semiconductor laser

KW - Sensor

KW - Waveguide

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U2 - 10.1117/12.308385

DO - 10.1117/12.308385

M3 - Conference article

AN - SCOPUS:0032225286

VL - 3270

SP - 42

EP - 49

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

SN - 0277-786X

T2 - Methods for Ultrasensitive Detection

Y2 - 26 January 1998 through 28 January 1998

ER -

New optical detection techniques for chemical sensors

Abstract

Keywords

ASJC Scopus subject areas

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