+ Site Statistics
References:
52,572,879
Abstracts:
28,705,754
PMIDs:
27,750,366
DOIs:
25,464,004
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Compound parabolic concentrator probe for efficient light collection in spectroscopy of biological tissue



Compound parabolic concentrator probe for efficient light collection in spectroscopy of biological tissue



Applied Optics 35(4): 758-763



We describe a compound parabolic concentrator (CPC)-based probe for enhanced signal collection in the spectroscopy of biological tissues. Theoretical considerations governing signal enhancement compared with conventional collection methods are given. A ray-tracing program was used to analyze the throughput of CPC's with shape deviations and surface imperfections. A modified CPC shape with 99% throughput was discovered. A 4.4-mm-long CPC was manufactured and incorporated into an optical fiber-based near-infrared Raman spectrometer system. For human tissue samples, light collection was enhanced by a factor of 7 compared with collection with 0.29-NA optical fibers.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 052269209

Download citation: RISBibTeXText

PMID: 21069066

DOI: 10.1364/AO.35.000758


Related references

Experiment and simulation study on the flux distribution of lens-walled compound parabolic concentrator compared with mirror compound parabolic concentrator. Energy 58: 398-403, 2013

Losses in a three-dimensional compound parabolic concentrator as a second stage of a solar concentrator. Solar energy 51(1): 45-51, 1993

Optical receiving system based on a compound parabolic concentrator and a hemispherical lens for visible light communication. Applied Optics 55(36): 10229-10238, 2017

Design of a gradient-index lens with a compound parabolic concentrator shape as a visible light communication receiving antenna. Applied Optics 57(6): 1510-1517, 2018

Raytrace for compound parabolic concentrator. Renewable Energy 5(1-4): 376-383, 1994

All-dielectric compound parabolic concentrator. Applied Optics 16(10): 2601-2602, 1977

All-dielectric compound parabolic concentrator: corrigenda. Applied Optics 17(10): 1482-1482, 1978

Bio-inspired thin and flat solar concentrator for efficient, wide acceptance angle light collection. Applied Optics 53(2): 306-315, 2015

Optimization of the tubular absorber using a compound parabolic concentrator. Renewable Energy 6(1): 17-21, 1995

The Integrated Compound Parabolic Concentrator: from development to demonstration. Proceedings of the Annual Conference American Solar Energy Society Inc: 1-43, 1997

Investigation of a compound concentrator with a quasi-parabolic guide. Applied Solar Energy 43(3): 153-157, 2007

Performance analysis of a novel rotationally asymmetrical compound parabolic concentrator. Applied Energy 154: 221-231, 2015

Transient test of a solar air heater with a compound parabolic concentrator. Renewable Energy 30(5): 715-728, 2005

Power losses in an asymmetric compound parabolic photovoltaic concentrator. Solar Energy Materials and Solar Cells 91(12): 1137-1146, 2007

Design and investigation of a novel lens-walled compound parabolic concentrator with air gap. Applied Energy 125: 21-27, 2014