The construction of an optical particle counter with sub-micron and super-micron counting capability - art. no. 673914

Colin O'Dowd

The construction of an optical particle counter with sub-micron and super-micron counting capability - art. no. 673914

Physics

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication › peer-review

Abstract

An Optical Particle Counter (OPC) has been designed with a single ellipsoid reflector as the main optical element. Photodiodes with low noise transimpedance are used to detect forward and backscatter responses of particles scattering laser light (685 nm) at the ellipsoid focus. The Zemax (R) ray tracing program has been used to estimate the OPCs light collection efficiency. The design process has included modeling the optical response of various lenses, reflector coatings, and laser wavelengths. Simulations show that our OPC with a single ellipsoid reflector has 58.2% total efficiency for collecting forward and backscattered light.

Original language	English (Ireland)
Title of host publication	ELECTRO-OPTICAL REMOTE SENSING, DETECTION, AND PHOTONIC TECHNOLOGIES AND THEIR APPLICATIONS
Publisher	SPIE-INT SOC OPTICAL ENGINEERING
Volume	6739
ISBN (Electronic)	0277-786X
ISBN (Print)	0277-786X
Publication status	Published - 1 Jan 2007

Authors (Note for portal: view the doc link for the full list of authors)

Authors
Greaney, RJ;Ryan, O;Jennings, SG;O'Dowd, CD

Cite this

@inproceedings{759a91d7007449909c2080609f0ea671,

title = "The construction of an optical particle counter with sub-micron and super-micron counting capability - art. no. 673914",

abstract = "An Optical Particle Counter (OPC) has been designed with a single ellipsoid reflector as the main optical element. Photodiodes with low noise transimpedance are used to detect forward and backscatter responses of particles scattering laser light (685 nm) at the ellipsoid focus. The Zemax (R) ray tracing program has been used to estimate the OPCs light collection efficiency. The design process has included modeling the optical response of various lenses, reflector coatings, and laser wavelengths. Simulations show that our OPC with a single ellipsoid reflector has 58.2% total efficiency for collecting forward and backscattered light.",

author = "Colin O'Dowd",

year = "2007",

month = jan,

day = "1",

language = "English (Ireland)",

isbn = "0277-786X",

volume = "6739",

booktitle = "ELECTRO-OPTICAL REMOTE SENSING, DETECTION, AND PHOTONIC TECHNOLOGIES AND THEIR APPLICATIONS",

publisher = "SPIE-INT SOC OPTICAL ENGINEERING",

}

The construction of an optical particle counter with sub-micron and super-micron counting capability - art. no. 673914. / O'Dowd, Colin.
ELECTRO-OPTICAL REMOTE SENSING, DETECTION, AND PHOTONIC TECHNOLOGIES AND THEIR APPLICATIONS. Vol. 6739 SPIE-INT SOC OPTICAL ENGINEERING, 2007.

Research output: Chapter in Book or Conference Publication/Proceeding › Conference Publication › peer-review

TY - GEN

T1 - The construction of an optical particle counter with sub-micron and super-micron counting capability - art. no. 673914

AU - O'Dowd, Colin

PY - 2007/1/1

Y1 - 2007/1/1

N2 - An Optical Particle Counter (OPC) has been designed with a single ellipsoid reflector as the main optical element. Photodiodes with low noise transimpedance are used to detect forward and backscatter responses of particles scattering laser light (685 nm) at the ellipsoid focus. The Zemax (R) ray tracing program has been used to estimate the OPCs light collection efficiency. The design process has included modeling the optical response of various lenses, reflector coatings, and laser wavelengths. Simulations show that our OPC with a single ellipsoid reflector has 58.2% total efficiency for collecting forward and backscattered light.

AB - An Optical Particle Counter (OPC) has been designed with a single ellipsoid reflector as the main optical element. Photodiodes with low noise transimpedance are used to detect forward and backscatter responses of particles scattering laser light (685 nm) at the ellipsoid focus. The Zemax (R) ray tracing program has been used to estimate the OPCs light collection efficiency. The design process has included modeling the optical response of various lenses, reflector coatings, and laser wavelengths. Simulations show that our OPC with a single ellipsoid reflector has 58.2% total efficiency for collecting forward and backscattered light.

M3 - Conference Publication

SN - 0277-786X

VL - 6739

BT - ELECTRO-OPTICAL REMOTE SENSING, DETECTION, AND PHOTONIC TECHNOLOGIES AND THEIR APPLICATIONS

PB - SPIE-INT SOC OPTICAL ENGINEERING

ER -

The construction of an optical particle counter with sub-micron and super-micron counting capability - art. no. 673914

Abstract

Authors (Note for portal: view the doc link for the full list of authors)

Fingerprint

Cite this