Peer Reviewed: Mid-IR Fiber-Optic Sensors

Mizaikoff, Boris

doi:10.1021/ac031340g

Cited by 130 publications

(126 citation statements)

References 43 publications

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“…These new techniques require the development of materials that can effectively collect and transmit the infrared signal but which can also be shaped into appropriate optical components. The recent development of infrared Fiber Evanescent Wave Spectroscopy (FEWS) is an example of such technologies [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Opto-electrophoretic detection of bio-molecules using conducting chalcogenide glass sensors

Yang¹,

Fah²,

Reynolds³

et al. 2010

Opt. Express

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Novel telluride glasses with high electrical conductivity, wide infrared transparency and good resistance to crystallization are used to design an opto-electrophoretic sensor for detection and identification of hazardous microorganisms. The sensor is based on an attenuated total reflectance element made of Ge-As-Te glass that serves as both an optical sensing zone and an electrode for driving the migration of bio-molecules within the evanescent wave of the sensor. An electric field is applied between the optical element and a counter electrode in order to induce the migration of bio-molecules carrying surface charges. The effect of concentration and applied voltage is tested and the migration effect is shown to be reversible upon switching the electric field. The collected signal is of high quality and can be used to identify different bacterial genus through statistical spectral analysis. This technique therefore provides the ability to detect hazardous microorganisms with high specificity and high sensitivity in aqueous environments. This has great potential for online monitoring of water quality.

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Section: Introductionmentioning

confidence: 99%

Opto-electrophoretic detection of bio-molecules using conducting chalcogenide glass sensors

Yang¹,

Fah²,

Reynolds³

et al. 2010

Opt. Express

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show abstract

“…5 State-of-the-art laboratory techniques such as conventional gas or liquid chromatography, mass spectrometry, and optical spectroscopic techniques are of limited applicability for in-field deployment or use by first responders. Two notable exceptions are microgas chromatography systems (μ-GC) 6,7 and fiber-based infrared (IR) sensors, 8 which are continuously evolving technologies. While both of these systems have the potential of being integrated into hand-held platforms, their potential cost and complexity may still limit widespread routine use.…”

mentioning

confidence: 99%

Liquid-Phase Chemical Sensing Using Lateral Mode Resonant Cantilevers

et al. 2010

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“…Photovoltaic quantum well infrared photodetectors (PV-QWIPs) enable such devices: low-noise, compact, and robust room temperature devices for hyperspectral imaging, environmental gas sensing, and micro-optoelectronic communications. [3][4][5][6][7][8] Specifically, InGaAs MIR PV-QWIPs enable innate spectral selectivity, polarization sensitivity, radiation hardness, and high speed operation. In addition, the use of these cost effective mature GaAs based growths allow exceptional material uniformity, reproducibility, and yield, over a large area, which can result in devices with excellent measured detectivities at TEC temperatures without an applied bias.…”

Section: Doi: 101002/adma201103372mentioning

confidence: 99%