Abstract

We demonstrate a technique, named dual structured laser illumination planar imaging (SLIPI), capable of acquiring depth-resolved images of the extinction coefficient. This is achieved by first suppressing the multiply scattered light intensity and then measuring the intensity reduction caused by signal attenuation between two laser sheets separated by Δzmm. Unlike other methods also able to measure this quantity, the presented approach is based solely on side-scattering detection. The main advantages of dual SLIPI is that it accounts for multiple scattering, provides two-dimensional information, and can be applied on inhomogeneous media.

© 2011 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. L. Wang, X. Liang, P. Galland, P. P. Ho, and R. R. Alfano, Opt. Lett. 20, 913 (1995).
    [CrossRef] [PubMed]
  2. A. Ansmann, M. Riebesell, and C. Weitkamp, Opt. Lett. 15, 746 (1990).
    [CrossRef] [PubMed]
  3. H. Koh, D. Kim, S. Shin, and Y. Yoon, Meas. Sci. Technol. 17, 2159 (2006).
    [CrossRef]
  4. J. Lim, Y. Sivathanu, V. Narayanan, and S. Chang, Atomiz. Sprays 13, 27 (2003).
    [CrossRef]
  5. J. Huisken, J. Swoger, F. Del Bene, J. Wittbrodt, and E. H. K. Stelzer, Science 305, 1007 (2004).
    [CrossRef] [PubMed]
  6. E. Berrocal, E. Kristensson, M. Richter, M. Linne, and M. Aldén, Opt. Express 16, 17870 (2008).
    [CrossRef] [PubMed]
  7. E. Kristensson, E. Berrocal, M. Richter, S. G. Pettersson, and M. Aldén, Opt. Lett. 33, 2752 (2008).
    [CrossRef] [PubMed]
  8. M. A. A. Neil, R. Juškaitis, and T. Wilson, Opt. Lett. 22, 1905 (1997).
    [CrossRef]

2008 (2)

2006 (1)

H. Koh, D. Kim, S. Shin, and Y. Yoon, Meas. Sci. Technol. 17, 2159 (2006).
[CrossRef]

2004 (1)

J. Huisken, J. Swoger, F. Del Bene, J. Wittbrodt, and E. H. K. Stelzer, Science 305, 1007 (2004).
[CrossRef] [PubMed]

2003 (1)

J. Lim, Y. Sivathanu, V. Narayanan, and S. Chang, Atomiz. Sprays 13, 27 (2003).
[CrossRef]

1997 (1)

1995 (1)

1990 (1)

Aldén, M.

Alfano, R. R.

Ansmann, A.

Berrocal, E.

Chang, S.

J. Lim, Y. Sivathanu, V. Narayanan, and S. Chang, Atomiz. Sprays 13, 27 (2003).
[CrossRef]

Del Bene, F.

J. Huisken, J. Swoger, F. Del Bene, J. Wittbrodt, and E. H. K. Stelzer, Science 305, 1007 (2004).
[CrossRef] [PubMed]

Galland, P.

Ho, P. P.

Huisken, J.

J. Huisken, J. Swoger, F. Del Bene, J. Wittbrodt, and E. H. K. Stelzer, Science 305, 1007 (2004).
[CrossRef] [PubMed]

Juškaitis, R.

Kim, D.

H. Koh, D. Kim, S. Shin, and Y. Yoon, Meas. Sci. Technol. 17, 2159 (2006).
[CrossRef]

Koh, H.

H. Koh, D. Kim, S. Shin, and Y. Yoon, Meas. Sci. Technol. 17, 2159 (2006).
[CrossRef]

Kristensson, E.

Liang, X.

Lim, J.

J. Lim, Y. Sivathanu, V. Narayanan, and S. Chang, Atomiz. Sprays 13, 27 (2003).
[CrossRef]

Linne, M.

Narayanan, V.

J. Lim, Y. Sivathanu, V. Narayanan, and S. Chang, Atomiz. Sprays 13, 27 (2003).
[CrossRef]

Neil, M. A. A.

Pettersson, S. G.

Richter, M.

Riebesell, M.

Shin, S.

H. Koh, D. Kim, S. Shin, and Y. Yoon, Meas. Sci. Technol. 17, 2159 (2006).
[CrossRef]

Sivathanu, Y.

J. Lim, Y. Sivathanu, V. Narayanan, and S. Chang, Atomiz. Sprays 13, 27 (2003).
[CrossRef]

Stelzer, E. H. K.

J. Huisken, J. Swoger, F. Del Bene, J. Wittbrodt, and E. H. K. Stelzer, Science 305, 1007 (2004).
[CrossRef] [PubMed]

Swoger, J.

J. Huisken, J. Swoger, F. Del Bene, J. Wittbrodt, and E. H. K. Stelzer, Science 305, 1007 (2004).
[CrossRef] [PubMed]

Wang, L.

Weitkamp, C.

Wilson, T.

Wittbrodt, J.

J. Huisken, J. Swoger, F. Del Bene, J. Wittbrodt, and E. H. K. Stelzer, Science 305, 1007 (2004).
[CrossRef] [PubMed]

Yoon, Y.

H. Koh, D. Kim, S. Shin, and Y. Yoon, Meas. Sci. Technol. 17, 2159 (2006).
[CrossRef]

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (3)

Fig. 1
Fig. 1

Schematic of the detection arrangement for dual SLIPI. Two cameras, positioned at ± 90 ° , are used for the two SLIPI measurements. The dashed region between the two laser sheets indicate the probed volume over which the average extinction coefficient is calculated. The laser sheets propagate along the x direction.

Fig. 2
Fig. 2

(a) Images and average cross sections of a homogeneous scattering sample obtained using laser sheet imaging, SLIPI and dual SLIPI with Δ z = 4 mm . The laser sheet and SLIPI images are normalized to unity, whereas the extinction coefficient values are given by the color bar. (b) Histograms of the extinction coefficients for seven different Δ z . It is seen that the results converge to a single value of μ e , confirming the homogeneity of the probed sample.

Fig. 3
Fig. 3

Images obtained using either laser sheet imaging, SLIPI, or dual SLIPI. Top row, solid cone spray. Bottom row, single-spray plume of a six-hole injector. The laser sheet and SLIPI images are normalized to unity, whereas the extinction coefficients are given in the color bar. Δ z is given in millimeters. The laser sheet enters from the right.

Equations (8)

Equations on this page are rendered with MathJax. Learn more.

I 1 1 ( x ) = C 1 · S · I 0 · exp ( 0 x μ e ( x , z ) d x ) · exp ( 0 z μ e ( x , z ) d z ) ,
I 2 1 ( x ) = C 2 · S · I 0 · exp ( 0 x μ e ( x , z ) d x ) · exp ( z L μ e ( x , z ) d z ) A .
I 1 2 ( x ) = C 1 · S · I 0 · exp ( 0 x μ e ( x , z + Δ z ) d x ) · exp ( 0 z + Δ z μ e ( x , z ) d z ) B ,
I 2 2 ( x ) = C 2 · S · I 0 · exp ( 0 x μ e ( x , z + Δ z ) d x ) · exp ( z + Δ z L μ e ( x , z ) d z ) .
I 1 1 ( x ) I 2 1 ( x ) = C 1 / C 2 · exp ( 0 z μ e ( x , z ) d z ) exp ( z z + Δ z μ e ( x , z ) d z ) · exp ( z + Δ z L μ e ( x , z ) d z ) ,
I 1 2 ( x ) I 2 2 ( x ) = exp ( 0 z μ e ( x , z ) d z ) · exp ( z z + Δ z μ e ( x , z ) d z ) C 2 / C 1 · exp ( z + Δ z L μ e ( x , z ) d z ) .
I 1 1 ( x ) · I 2 2 ( x ) I 1 2 ( x ) · I 2 1 ( x ) = exp ( 2 z z + Δ z μ e ( x , z ) d z ) .
μ ¯ e ( x ) = ln ( I 1 1 ( x ) · I 2 2 ( x ) I 1 2 ( x ) · I 2 1 ( x ) ) · 1 2 Δ z .

Metrics