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Optics Express

Optics Express

  • Editor: J. H. Eberly
  • Vol. 2, Iss. 2 — Jan. 19, 1998
  • pp: 29–39

A dissipative quantum mechanical beam-splitter

S. Anantha Ramakrishna, Abir Bandyopadhyay, and Jagdish Rai  »View Author Affiliations

Optics Express, Vol. 2, Issue 2, pp. 29-39 (1998)

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A dissipative beam-splitter (BS) has been analyzed by modeling the losses in the BS due to the excitation of optical phonons. The losses are obtained in terms of the BS medium properties. The model simplifies the picture by treating the loss mechanism as a perturbation on the photon modes in a linear, non-lossy medium in the limit of small losses, instead of using the full field quantization in lossy, dispersive media. The model uses second order perturbation in the Markoff approximation and yields the Beer’s law for absorption in the first approximation, thus providing a microscopic description of the absorption coefficient. It is shown that the fluctuations in the modes get increased because of the losses. We show the existence of quantum interferences due to phase correlations between the input beams and it is shown that these correlations can result in loss quenching. Hence in spite of having such a dissipative medium, it is possible to design a lossless 50–50 BS at normal incidence which may have potential applications in laser optics and dielectric-coated mirrors.

© Optical Society of America

OCIS Codes
(230.1360) Optical devices : Beam splitters
(270.0270) Quantum optics : Quantum optics

ToC Category:
Research Papers

Original Manuscript: September 16, 1997
Revised Manuscript: September 3, 1997
Published: January 19, 1998

S. Anantha Ramakrishna, Abir Bandyopadhyay, and Jagdish Rai, "A dissipative quantum mechanical beam-splitter," Opt. Express 2, 29-39 (1998)

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