Broadband instrumentation for spectroscopy in turbid media using NIR

Author

Mu, Chengpeng ; Daryoush, Afshin S.

Author_Institution

Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA

fYear

2004

fDate

19-20 Oct. 2004

Firstpage

54

Lastpage

58

Abstract

A custom designed broadband NIR spectroscopy system is reported. A high-speed high power optical transmitter is designed over the frequency range from 100 MHz up to 3 GHz. Phantom experiments are performed to extract optical parameters of a turbid media simulating a breast tissue. Both broadband and single-frequency extraction methods are used to extract optical parameters of the phantom model. The comparison shows that the achieved extraction accuracy of optical parameter (μ_a, μ_z) using broadband extraction method is better than the single frequency technique.

Keywords

biological tissues; gynaecology; high-speed optical techniques; infrared spectroscopy; medical signal processing; optical design techniques; optical transmitters; phantoms; physiological models; turbidity; 100 to 3E6 MHz; NIR spectroscopy; breast tissue simulation; broadband extraction methods; broadband instrumentation; extraction accuracy; high power optical transmitter; high-speed optical transmitter; optical parameter extraction; phantom experiments; phantom model; single-frequency extraction methods; transmitter design; turbid media; Biomedical optical imaging; Frequency; High speed optical techniques; Instruments; Optical modulation; Optical receivers; Optical saturation; Optical scattering; Optical transmitters; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Lightwave Technologies in Instrumentation and Measurement Conference, 2004. Proceedings of the

Print_ISBN

0-7803-8722-8

Type

conf

DOI

10.1109/LTIMC.2004.1370991

Filename

1370991