We report picosecond time-resolved measurements of optical pulse propagation in dielectric spheres (8, 10, and 26 mm in diameter) for which the pulse duration 2 ps was short compared with the equatorial round-trip time within the sphere. A size-independent buildup of the leakage intensity in terms of the number of round trips was observed for each of the spheres, as were damped low-frequency oscillations superimposed upon the pulse ringdown envelope. These features of the data are interpreted as resulting from perturbative coupling of eigenmodes of the sphere and trajectory precession near the observation region.

© 1998 Optical Society of America

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1997 (1)

1996 (1)

1995 (2)

1994 (2)

1993 (1)

1987 (1)

1976 (1)

D. Marcuse, Bell Syst. Tech. J. 55, 777 (1976).

Arnold, S.

Barber, P. W.

Barnes, M. D.

Blake, J. N.

Chang, R. K.

Chowdhury, D. Q.

Dubreuil, N.

Engan, H. E.

Griffel, G.

Hare, J.

Hill, S. C.

Khaled, E. E. M.

Kim, B. Y.

Kim, D.-W.

Knight, J. C.

Leach, D. H.

Lee, T.-N.

Lefevre, V.

Leventhal, D. K.

Marcuse, D.

D. Marcuse, Bell Syst. Tech. J. 55, 777 (1976).

Milburn, G. J.

See, for example, D. F. Walls and G. J. Milburn, Quantum Optics (Springer-Verlag, Berlin, 1994).

Ramsey, J. M.

Sandoghdar, V.

Serpenguzel, A.

Shaw, H. J.

Shifrin, K. S.

Swindal, J. C.

Walls, D. F.

See, for example, D. F. Walls and G. J. Milburn, Quantum Optics (Springer-Verlag, Berlin, 1994).

Whitten, W. B.

Xiao, G. Y.

Young, K.

Zolotov, I. G.

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Figures (3)

Fig. 1
Fig. 1

Experimental arrangement for pulse propagation measurements. The image beyond the coupling prism was a specular spot plus a horizontal streak of light, which exhibited low vertical divergence. The specular spot was rejected, and a portion of the streak was imaged onto a fast photodiode. FET; field-effect transistor; f.l., focal length.

Fig. 2
Fig. 2

Photodiode signals for three sphere diameters. The indicated peak spacings correspond to round-trip times about the sphere circumferences.

Fig. 3
Fig. 3

Power spectra obtained by Fourier transformation of the data shown in Fig. 2. The time-domain data interval was 10 ps, and 1024 points were transformed, resulting in a frequency resolution of 96 MHz.