Real time chemical detection using species selective thin films and waveguide zeeman interferometry

K. M. Grace; K. Shrouf; S. Honkanen; P. Äyräs; P. Katila; M. Leppihalme; R. G. Johnston; X. Yang; B. I. Swanson; N. Peyghambarian

doi:10.1117/12.317646

Real time chemical detection using species selective thin films and waveguide zeeman interferometry

K. M. Grace, K. Shrouf, S. Honkanen, P. Äyräs, P. Katila, M. Leppihalme, R. G. Johnston, X. Yang, B. I. Swanson, N. Peyghambarian

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

Abstract

We present a chemical sensor scheme based on selective sensing surfaces and highly sensitive integrated optical transduction methods. Using self-assembly techniques, species selective thin-films are covalently attached to the surface of Si₃N₄ channel waveguides to produce robust sensor elements. Exposure to targeted analyses results in the selective absorption of these molecules onto the waveguide surface causing a change in the effective refractive index of the guided modes. These relative changes in effective refractive index between TE and TM modes are precisely measured using Zeeman interferometry. Our measurements demonstrate reversible, real time sensing of volatile organic compounds at ppm levels.

Original language	English (US)
Pages (from-to)	27-32
Number of pages	6
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	3383
DOIs	https://doi.org/10.1117/12.317646
State	Published - 1998
Event	Electro-Optical Technology for Remote Chemical Detection and Identification III - Orlando, FL, United States Duration: Apr 13 1998 → Apr 13 1998

Keywords

Chemical sensors
Evanescent field sensing
Waveguide interferometry

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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10.1117/12.317646

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Grace, K. M., Shrouf, K., Honkanen, S., Äyräs, P., Katila, P., Leppihalme, M., Johnston, R. G., Yang, X., Swanson, B. I., & Peyghambarian, N. (1998). Real time chemical detection using species selective thin films and waveguide zeeman interferometry. Proceedings of SPIE - The International Society for Optical Engineering, 3383, 27-32. https://doi.org/10.1117/12.317646

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title = "Real time chemical detection using species selective thin films and waveguide zeeman interferometry",

abstract = "We present a chemical sensor scheme based on selective sensing surfaces and highly sensitive integrated optical transduction methods. Using self-assembly techniques, species selective thin-films are covalently attached to the surface of Si3N4 channel waveguides to produce robust sensor elements. Exposure to targeted analyses results in the selective absorption of these molecules onto the waveguide surface causing a change in the effective refractive index of the guided modes. These relative changes in effective refractive index between TE and TM modes are precisely measured using Zeeman interferometry. Our measurements demonstrate reversible, real time sensing of volatile organic compounds at ppm levels.",

keywords = "Chemical sensors, Evanescent field sensing, Waveguide interferometry",

author = "Grace, {K. M.} and K. Shrouf and S. Honkanen and P. {\"A}yr{\"a}s and P. Katila and M. Leppihalme and Johnston, {R. G.} and X. Yang and Swanson, {B. I.} and N. Peyghambarian",

year = "1998",

doi = "10.1117/12.317646",

language = "English (US)",

volume = "3383",

pages = "27--32",

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

issn = "0277-786X",

publisher = "SPIE",

note = "Electro-Optical Technology for Remote Chemical Detection and Identification III ; Conference date: 13-04-1998 Through 13-04-1998",

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TY - JOUR

T1 - Real time chemical detection using species selective thin films and waveguide zeeman interferometry

AU - Grace, K. M.

AU - Shrouf, K.

AU - Honkanen, S.

AU - Äyräs, P.

AU - Katila, P.

AU - Leppihalme, M.

AU - Johnston, R. G.

AU - Yang, X.

AU - Swanson, B. I.

AU - Peyghambarian, N.

PY - 1998

Y1 - 1998

N2 - We present a chemical sensor scheme based on selective sensing surfaces and highly sensitive integrated optical transduction methods. Using self-assembly techniques, species selective thin-films are covalently attached to the surface of Si3N4 channel waveguides to produce robust sensor elements. Exposure to targeted analyses results in the selective absorption of these molecules onto the waveguide surface causing a change in the effective refractive index of the guided modes. These relative changes in effective refractive index between TE and TM modes are precisely measured using Zeeman interferometry. Our measurements demonstrate reversible, real time sensing of volatile organic compounds at ppm levels.

AB - We present a chemical sensor scheme based on selective sensing surfaces and highly sensitive integrated optical transduction methods. Using self-assembly techniques, species selective thin-films are covalently attached to the surface of Si3N4 channel waveguides to produce robust sensor elements. Exposure to targeted analyses results in the selective absorption of these molecules onto the waveguide surface causing a change in the effective refractive index of the guided modes. These relative changes in effective refractive index between TE and TM modes are precisely measured using Zeeman interferometry. Our measurements demonstrate reversible, real time sensing of volatile organic compounds at ppm levels.

KW - Chemical sensors

KW - Evanescent field sensing

KW - Waveguide interferometry

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DO - 10.1117/12.317646

M3 - Conference article

AN - SCOPUS:18544368380

SN - 0277-786X

VL - 3383

SP - 27

EP - 32

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

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

T2 - Electro-Optical Technology for Remote Chemical Detection and Identification III

Y2 - 13 April 1998 through 13 April 1998

ER -

Real time chemical detection using species selective thin films and waveguide zeeman interferometry

Abstract

Keywords

ASJC Scopus subject areas

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