Abstract

Elastic angular scattering spectra were obtained from pure and particle-seeded microdroplets, stably levitated in an electrodynamic trap. Both pure and seeded droplet spectra consist of broad interference peaks; however, in the seeded spectra, the peak amplitudes suffer random perturbations during sequentially captured spectral profiles. A simple model is developed suggesting that these perturbations result from random particle motions inside the droplet. The observed time scale of these perturbations provides an estimate of the corresponding particle diffusion length, which is compared with characteristic lengths in the droplet.

© 1993 Optical Society of America

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References

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1993 (3)

1992 (4)

1991 (1)

1989 (1)

1988 (2)

1985 (2)

1984 (1)

1983 (1)

1980 (1)

R. E. Benner, P. W. Barber, J. F. Owen, R. K. Chang, Phys. Rev. Lett. 44, 475 (1980).
[Crossref]

Acker, W. P.

Armstrong, R. L.

Arnold, S.

Askin, A.

Barber, P. W.

R. E. Benner, P. W. Barber, J. F. Owen, R. K. Chang, Phys. Rev. Lett. 44, 475 (1980).
[Crossref]

Benner, R. E.

R. E. Benner, P. W. Barber, J. F. Owen, R. K. Chang, Phys. Rev. Lett. 44, 475 (1980).
[Crossref]

Berne, B.

B. Berne, R. Pecora, Dynamic Light Scattering (Wiley, New York, 1976), pp. 26 and 57.

Biswas, A.

Bronk, B.

Campillo, A. J.

H.-B. Lin, A. L. Huston, J. D. Eversol, A. J. Campillo, P. Chýlek, Opt. Lett. 17, 9770 (1992).

Chang, R. K.

Chen, G.

Chýiek, P.

Chýlek, P.

Creegan, E.

Dziedzic, J. M.

Essien, M.

Eversol, J. D.

H.-B. Lin, A. L. Huston, J. D. Eversol, A. J. Campillo, P. Chýlek, Opt. Lett. 17, 9770 (1992).

Fernandez, G.

Gillespie, J. B.

Gu, J.

R. L. Armstrong, J.-G. Xie, T. E. Ruekgauer, J. Gu, R. G. Pinnick, Opt. Lett. 18, 119 (1993).
[Crossref] [PubMed]

J.-G. Xie, T. E. Ruekgauer, J. Gu, M. Shukri, R. L. Armstrong, “Coherent stimulated Raman emission from a microcavity-excited optical resonator,” submitted to Opt. Lett.

Hill, S. C.

Huston, A. L.

H.-B. Lin, A. L. Huston, J. D. Eversol, A. J. Campillo, P. Chýlek, Opt. Lett. 17, 9770 (1992).

Jarzembski, M.

Kiefer, W.

Latifi, H.

Lin, H.-B.

H.-B. Lin, A. L. Huston, J. D. Eversol, A. J. Campillo, P. Chýlek, Opt. Lett. 17, 9770 (1992).

Long, M. G.

Owen, J. F.

R. E. Benner, P. W. Barber, J. F. Owen, R. K. Chang, Phys. Rev. Lett. 44, 475 (1980).
[Crossref]

Pecora, R.

B. Berne, R. Pecora, Dynamic Light Scattering (Wiley, New York, 1976), pp. 26 and 57.

Pendelton, J. D.

Pinnick, R. G.

Qian, S.-X.

Ramaswamy, V.

Ruekgauer, T. E.

Shukri, M.

J.-G. Xie, T. E. Ruekgauer, J. Gu, M. Shukri, R. L. Armstrong, “Coherent stimulated Raman emission from a microcavity-excited optical resonator,” submitted to Opt. Lett.

Smith, M. J.

Snow, J. B.

Srivastava, V.

Thurn, R.

Tzeng, H.-M.

Wall, K. F.

Xie, J.-G.

Appl. Opt. (4)

Opt. Lett. (11)

Phys. Rev. Lett. (1)

R. E. Benner, P. W. Barber, J. F. Owen, R. K. Chang, Phys. Rev. Lett. 44, 475 (1980).
[Crossref]

Other (3)

J.-G. Xie, T. E. Ruekgauer, J. Gu, M. Shukri, R. L. Armstrong, “Coherent stimulated Raman emission from a microcavity-excited optical resonator,” submitted to Opt. Lett.

B. Berne, R. Pecora, Dynamic Light Scattering (Wiley, New York, 1976), pp. 26 and 57.

R. C. Weast, ed., CRC Handbook of Chemistry and Physics (CRC, Cleveland, Ohio, 1974), p. F-53.

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Figures (3)

Fig. 1
Fig. 1

Elastic scattering from glycerin–ethanol mixture droplets: (a) angular spectra from an unseeded 22-μm-radius droplet; (b) angular spectra from a 28-μm-radius droplet seeded with ~1.7 × 1010 cm−3 concentration, 0.502-μm-diameter latex spheres, (c) angle-averaged scattered intensity (scattering angle 90°) from an ~21-μm-radius droplet with same particle concentration as in (b).

Fig. 2
Fig. 2

Model calculations of Fraunhofer diffraction pattern from a circular aperture containing a random collection of opaque circular disks: solid curve, absence of disks; dashed curve, disks present.

Fig. 3
Fig. 3

Four sequential angular scattering spectra from a 39-μm-radius droplet under conditions of Fig. 1(b); spectra captured at ~0.1-s intervals. Note the random perturbations of peak intensities.

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