OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 17 — Jun. 10, 2010
  • pp: 3428–3433

Optical sensing of concentration and refractive index of pigments in a suspension

Ilpo Niskanen, Jukka Räty, and Kai-Erik Peiponen  »View Author Affiliations

Applied Optics, Vol. 49, Issue 17, pp. 3428-3433 (2010)

View Full Text Article

Enhanced HTML    Acrobat PDF (510 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



We describe an immersion liquid and data analysis method for the simultaneous determination of the refractive index and concentration of pigments by measurement of light transmission of suspensions. A new innovation is that, in the event that two different pigments are simultaneously present in a suspension, it is possible to detect the refractive index of an unknown pigment with the aid of half-width of transmittance and, furthermore, to obtain the concentration of the unknown pigment.

© 2010 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.1840) Instrumentation, measurement, and metrology : Densitometers, reflectometers
(260.2030) Physical optics : Dispersion

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: March 30, 2010
Revised Manuscript: May 12, 2010
Manuscript Accepted: May 19, 2010
Published: June 9, 2010

Ilpo Niskanen, Jukka Räty, and Kai-Erik Peiponen, "Optical sensing of concentration and refractive index of pigments in a suspension," Appl. Opt. 49, 3428-3433 (2010)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. J. Räty, K.-E. Peiponen, and T. Asakura, UV-Visible Reflection Spectroscopy of Liquids (Springer, 2004).
  2. S.-H. Lee, Y. Roichman, G.-R. Yi, S.-H. Kim, S.-M. Yang, A. Blaaderen, P. Oostrum, and D. G. Grier, “Characterizing and tracking single colloidal particles with video holographic microscopy,” Opt. Express 15, 18275–18282 (2007). [CrossRef] [PubMed]
  3. X. Ma, J. Q. Lu, R. S. Brock, K. M. Jacobs, P. Yang, and X.-H. Hu, “Determination of complex refractive index of polystyrene microspheres from 370 to 1610nm,” Phys. Med. Biol. 48, 4165–4172 (2003). [CrossRef]
  4. J. G. Webster, The Measurement, Instrumentation and Sensor Handbook (CRC, 1999).
  5. S.-C. Su, “A rapid and accurate procedure for the determination of refractive indices of regulated asbestos minerals,” Am. Mineral. 88, 1979–1982 (2003).
  6. M. Jonasz, G. Fournier, and D. Stramski, “Photometric immersion refractometry: a method for determining the refractive index of marine microbial particles from beam attenuation,” Appl. Opt. 36, 4214–4220 (1997). [CrossRef] [PubMed]
  7. A. Ashkin, J. M. Dziedzic, and T. Yamane, “Optical trapping and manipulation using infra red laser beams,” Nature 330, 769–771 (1987). [CrossRef] [PubMed]
  8. L. Bremer, R. Tuinier, and S. Jahromi, “High refractive index nanocomposite fluids for immersion lithography,” Langmuir 25, 2390–2401 (2009). [CrossRef] [PubMed]
  9. A. V. Papaev, G. V. Simonenko, V. V. Tuchin, and T. P. Denisova, Opt. Spectrosc. 101, 46–53 (2006). [CrossRef]
  10. J. M. S. Saarela, S. M. Heikkinen, T. E. J. Fabritius, A. T. Haapala, and R. A. Myllylä, “Refractive index matching improves optical object detection in paper,” Meas. Sci. Technol. 19, 055710–055717 (2008). [CrossRef]
  11. I. Niskanen, J. Räty, and K.-E. Peiponen, “Measurement of refractive index of transparent particles by incorporating a multifunction spectrophotometer and immersion liquid method,” Appl. Opt. 46, 5404–5407 (2007). [CrossRef] [PubMed]
  12. I. Niskanen, J. Räty, and K.-E. Peiponen, “Estimation of effective refractive index of birefringent particles using a combination of immersion liquid method and light scattering,” Appl. Spectrosc. 62, 399–401 (2008). [CrossRef] [PubMed]
  13. I. Niskanen, J. Räty, and K.-E. Peiponen, “A method for detection of the refractive index of irregular shapes solid pigments in light absorbing liquid matrix,” Talanta 81, 1322–1324(2010). [CrossRef] [PubMed]
  14. E. E. El-Hinnawi, Methods in Chemical and Mineral Microscopy (Elsevier, 1966).
  15. K. Lattaud, S. Vilminot, C. Hirlimann, H. Parant, J. Schoelkopf, and P. Gane, “Index of refraction enhancement of calcite particles coated with zinc carbonate,” Solid State Sci. 8, 1222–1228 (2006). [CrossRef]
  16. K. Koivunen, I. Niskanen, K.-E. Peiponen, and H. Paulapuro, “Novel nanostructured PCC fillers,” J. Mater. Sci. 44, 477–482 (2009). [CrossRef]
  17. P. G. Weidler and F. Friedrich, “Determination of the refractive index of particles in the clay and sub-micrometer size range,” Am. Mineral. 92, 1130–1132 (2007). [CrossRef]
  18. I. Niskanen, J. Räty, and K.-E. Peiponen, “Assessment of refractive index of pigments by Gaussian fitting of light backscattering data in context of the liquid immersion method,” Appl. Spectrosc. 64, 558–561 (2010). [CrossRef] [PubMed]
  19. E. D. Palik, Handbook of Optical Constants of Solids III(Academic, 1998).
  20. L. Neimo, Papermaking Chemistry (Gummerus, 1999).

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.


Fig. 1 Fig. 2 Fig. 3

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited