Abstract

We suggest and demonstrate a novel method for studying the thickness of thin liquid layers. The method is based on ray-deflection analysis of a beam reflected from the edge of the layer and on studying the topography of the layer.

© 1988 Optical Society of America

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References

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  1. H. A. Macleod, Thin Film Optical Filters (Macmillan, London, 1986).
    [CrossRef]
  2. O. Kafri, I. Glatt, Opt. Eng. 24, 944 (1985).
  3. D. Yogev, S. Efrima, “Novel silver metal liquidlike films,” Chem. Phys. (to be published).
  4. O. Kafri, I. Glatt, Appl. Opt. 27, 351 (1988).
    [CrossRef] [PubMed]

1988

1985

O. Kafri, I. Glatt, Opt. Eng. 24, 944 (1985).

Efrima, S.

D. Yogev, S. Efrima, “Novel silver metal liquidlike films,” Chem. Phys. (to be published).

Glatt, I.

O. Kafri, I. Glatt, Appl. Opt. 27, 351 (1988).
[CrossRef] [PubMed]

O. Kafri, I. Glatt, Opt. Eng. 24, 944 (1985).

Kafri, O.

O. Kafri, I. Glatt, Appl. Opt. 27, 351 (1988).
[CrossRef] [PubMed]

O. Kafri, I. Glatt, Opt. Eng. 24, 944 (1985).

Macleod, H. A.

H. A. Macleod, Thin Film Optical Filters (Macmillan, London, 1986).
[CrossRef]

Yogev, D.

D. Yogev, S. Efrima, “Novel silver metal liquidlike films,” Chem. Phys. (to be published).

Appl. Opt.

Opt. Eng.

O. Kafri, I. Glatt, Opt. Eng. 24, 944 (1985).

Other

D. Yogev, S. Efrima, “Novel silver metal liquidlike films,” Chem. Phys. (to be published).

H. A. Macleod, Thin Film Optical Filters (Macmillan, London, 1986).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Photograph of a silver MELLF, top view (water over dichloromethane).

Fig. 2
Fig. 2

Experimental setup. L1, L2, objective lenses; G1, G2, Ronchi rulings.

Fig. 3
Fig. 3

Deflectogram of a silver MELLF with a long-lived tear.

Fig. 4
Fig. 4

Schematic representation of the model for the silver MELLF near the tear. The H axis is grossly exaggerated. Insert, a model for a nonwetting case.

Fig. 5
Fig. 5

Moiré fringe analysis and the resulting film profile near the tear edge of a silver MELLF. The boxes are the experimental points, and the solid curves are the exponential fit.

Equations (2)

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β = p / 2 M d ,
H = D [ 1 - exp ( - y / W ) ] ,

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