Microlaser

Details Microlaser Microlaser

1995-11-30

1999-01-12

Lee, John D.

Coherent light generators

Particular pumping means

Pumping with optical or radiant energy

372 73, 372 99, 372108, H01S 3091

Patent

active

058598677

ABSTRACT:
In a single-atom microlaser, a pair of opposed reflectors define a high-finesse or "high-Q" optical cavity therebetween. A source delivers a stream of multiple-energy-level atoms or particles into the cavity. Each individual atom in the stream is excited by a pump from a lower energy level to an upper energy level before injection into the cavity. The cavity resonance frequency is substantially matched to the frequency of a photon emitted by each atom as it enters the cavity. The photon is emitted due to a transition in energy between the upper level and lower level of each atom. In this manner, upon entry of a sequence of individual atoms into the cavity for example, the average number of photons resonating in the cavity exceeds one and the average number of atoms in the cavity is less than one. The photons are sustained in the high-Q cavity for a long enough time period such that the photon field interacts with the next atom in the stream. A beam of coherent light in the optical frequency spectrum is emitted from the cavity.

REFERENCES:
patent: 5381431 (1995-01-01), Zayhowski
patent: 5394413 (1995-02-01), Zayhowski
E.T. Jaynes, et al., "Comparison of Quantum and Semiclassical Radiation Theories with Application to the Beam Maser, " Proceedings of the IEEE , vol. 51, pp. 89-109 (Jan. 1963).
R. J. Thompson, et al., "Observation of Normal-Mode Splitting for an Atom in an Optical Cavity," Physical Review Letters, 68 (8) :1132-1135 (24 Feb. 1992).
R. Filipowicz, et al. "Theory of a Microscopic Maser," Physical Review A, 34(4) :3077-3087 (Oct. 1986).
D. Meschede, et al., "One-Atom Maser," Physical Review Letters, 54(6) :551-554 (11 Feb. 1985).
G. Rempe, et al., "The One-Atom Maser and the Generation of Nonclassical Light," Physica Scripta, T34:5-13 (1991).
S. Haroche, et al., "Cavity Quantum Electrodynamics--A New Generation of Experiments Shows that Spontaneous Radiation From Excited Atoms Can Be Greatly Suppressed or Enhanced By Placing the Atoms Between Mirrors or in Cavities," Physics Today, pp. 24-30 (Jan. 1989).
P.G. Kwiat, et al., "High-Efficiency Single-Photon Detectors," Physical Review A, 48(2) :R867-R870 (Aug. 1993).
J. Krause, et al., "Preparation of a Pure Number State and Measurement of the Photon Statistics in a High-Q Micromaser," Physical Review A, 39(4) : 1915-1921 (Feb. 15, 1989).
G. Rempe, et al., "Observation of Quantum Collapse and Revival in a One-Atom Maser" Physical Review Letters, 58(4) :353-356 (26 Jan. 1987).
G. Rempe, et al., "Measurement of Ultralow Losses in an Optical Interferometer," Optics Letters, 17(5) :363-365 (Mar. 1, 1992).
"Single-Atom Laser Technique Developed," MIT Tech, 39(12) (Nov. 16, 1994), 2 pp.
G. Rempe, "Single Atoms Light Up in Microlaser," Physics in Action, p. 31
F. Flam, "Coaxing Light From Single Atoms," Science, vol. 266 (Dec. 2, 1994), p. 1473.
J. Maddox, "The Wonders of the Microlaser," Nature, vol. 373, p. 101 (12 Jan. 1995).
"Cavity Lases When Occupied, On Average, By Less Than One Atom," Physics Today, pp. 20-21 (Feb. 1995), Barbara Goss Levi.
E.A. Thomson, "Single-Atom Laser Technique Achieved," The MIT Report, pp. 4 (Dec./Jan. 1994/95).
K. An, et al., "Microlaser: A Laser With One Atom in An Optical Resonator," Physical Review Letters, 73(25) :3375-3378, 19 Dec. 1994.
K. An, et al., "Role of Standing-Wave Mode Structure in Microlaser Emission," Physics Review A, pp. 1-16 (Jan. 30, 1995).
K. An, et al., "One-Step Absolute Frequency Stabilization of a Ti:Sapphire Laser Using FM Lamb-Dip Spectroscopy," Applied Physics Letters, pp. 1-9 (1995).

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