OSA's Digital Library

Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 9 — Sep. 26, 2007

Sample holder and methodology for measuring the reflectance and transmittance of narrow-leaf samples

Scott D. Noble and Trever G. Crowe  »View Author Affiliations


Applied Optics, Vol. 46, Issue 22, pp. 4968-4976 (2007)
http://dx.doi.org/10.1364/AO.46.004968


View Full Text Article

Enhanced HTML    Acrobat PDF (971 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Measuring the reflectance and transmittance of narrow samples can be difficult, as the width of the illuminating beam may be greater than the width of the sample. The small sample area can also compound the already time-consuming process of reconfiguring the instrument between reflectance and transmittance measurements by introducing additional alignment problems. A method of measuring the reflectance and transmittance properties of narrow-leaf samples using reflectance configurations only is developed and tested. The method uses a mask and mask correction and relationships between reflectance measurements against contrasting backgrounds to determine sample reflectance and transmittance. The design of the accompanying sample-holding apparatus is also described. In testing, the mean error was less than 1% reflectance∕transmittance, and standard deviation of the error was approximately 1% reflectance and 2% transmittance as compared to samples measured using conventional measurement configurations.

© 2007 Optical Society of America

OCIS Codes
(000.2170) General : Equipment and techniques
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(170.3660) Medical optics and biotechnology : Light propagation in tissues
(280.0280) Remote sensing and sensors : Remote sensing and sensors
(300.0300) Spectroscopy : Spectroscopy

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: October 16, 2006
Revised Manuscript: May 8, 2007
Manuscript Accepted: May 16, 2007
Published: July 6, 2007

Virtual Issues
Vol. 2, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Scott D. Noble and Trever G. Crowe, "Sample holder and methodology for measuring the reflectance and transmittance of narrow-leaf samples," Appl. Opt. 46, 4968-4976 (2007)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-46-22-4968


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. S. D. Noble, "Crop and weed leaf reflectance and classification," M.S. thesis (University of Saskatchewan, Saskatoon, SK, 2002).
  2. G. Schaepman-Strub, M. E. Schaepman, and T. H. Painter, "Reflectance quantities in optical remote sensing-definitions and case studies," Remote Sen. Environ. 103, 27 (2006). [CrossRef]
  3. C. S. T. Daughtry, L. L. Biehl, and K. J. Ranson, "A new technique to measure the spectral properties of conifer needles," Remote Sens. Environ. 27, 81 (1989). [CrossRef]
  4. M. A. Mesarch, E. A. Walter-Shea, and G. P. Asner, "A revised measurement methodology for conifer needles spectral optical properties: evaluating the influence of gaps between elements," Remote Sens. Environ. 68, 177 (1999). [CrossRef]
  5. J. W. Harron and J. R. Miller, "An alternative methodology for reflectance and transmittance measurements on conifer needles," presents at the Seventeenth Canadian Symposium on Remote Sensing, Saskatoon, SK, Canada, 16-17 June 1995.
  6. J. R. Miller, Department of Earth and Space Science and Engineering, York University, 4700 Keele Street, Toronto, ON Canada, M3J IP3 (personal communication, 2007).
  7. LI-COR, Inc., 1800-12 Integrating Sphere Instruction Manual (LI-COR, Lincoln, NE, USA), 1988).
  8. D. J. Major, S. M. McGinn, and T. J. Gillespie, "A technique for determination of single leaf reflectance and transmittance in field studies," Remote Sens. Environ. 43, 209 (1993). [CrossRef]
  9. O. Lillesaeter, "Spectral reflectance of partly transmitting leaves:laboratory measurements and mathematical modeling," Remote Sens. Environ. 12, 247 (1982). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited