Relativistic Plasma-Wave Excitation by Collinear Optical Mixing

C. E. Clayton; C. Joshi; C. Darrow; D. Umstadter

doi:10.1103/PhysRevLett.54.2343

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Relativistic Plasma-Wave Excitation by Collinear Optical Mixing

C. E. Clayton, C. Joshi, C. Darrow, and D. Umstadter

Electrical Engineering Department, University of California, Los Angeles, California 90024

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Phys. Rev. Lett. 54, 2343 – Published 27 May, 1985

DOI: https://doi.org/10.1103/PhysRevLett.54.2343

Abstract

The relativistic plasma wave excited when the frequency difference between two copropagating C $O_{2}$ laser beams equals the plasma frequency is detected for the first time. The plasma-wave frequency, wave number, spatial extent, and saturation time are directly measured by use of 7-mrad, collective, ruby Thomson scattering and the forward-scattered ir spectrum. The wave amplitude $\frac{\tilde{n}}{n_{0}}$ is inferred to be (1-3)% which gives a longitudinal electric field of 0.3 to 1 GV/m at a laser intensity of 1.7× $10^{13}$ W/ ${cm}^{2}$ , in reasonable agreement with theory.

References (18)

N. M. Kroll et al., Phys. Rev. Lett. 13, 83 (1964)
M. N. Rosenbluth and S. C. Liu, Phys. Rev. Lett. 29, 701 (1972)
B. I. Cohen et al., Phys. Rev. Lett. 29, 581 (1972)
C. M. Tang et al., Appl. Phys. Lett. 45, 375 (1984)
B. Amini and F. F. Chen, Phys. Rev. Lett. 53, 1441 (1984)
B. L. Stansfield et al., Phys. Rev. Lett. 26, 1219 (1971)
C. J. Pawley et al., Phys. Rev. Lett. 49, 877 (1982)
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C. Joshi et al., Nature 311, 525 (1984)
D. W. Forslund et al., Phys. Rev. Lett. 54, 558 (1985)
C. Joshi et al., Phys. Rev. Lett. 48, 874 (1982)
D. W. Forslund et al., Phys. Fluids 18, 1002 (1975)
C. E. Clayton et al., to be published
H. Figueroa, private communication
F. E. Terman and J. M. Pettit, Electronic Measurements (McGraw-Hill, New York, 1952), pp. 259-260
R. E. Slusher and C. M. Surko, Phys. Fluids 23, 472 (1980)
Omitted endnote
P. K. Kaw et al., Phys. Fluids 16, 1967 (1973)

[c1] N. M. Kroll et al., Phys. Rev. Lett. 13, 83 (1964)

[c2] M. N. Rosenbluth and S. C. Liu, Phys. Rev. Lett. 29, 701 (1972)

[c3] B. I. Cohen et al., Phys. Rev. Lett. 29, 581 (1972)

[c4] C. M. Tang et al., Appl. Phys. Lett. 45, 375 (1984)

[c5] B. Amini and F. F. Chen, Phys. Rev. Lett. 53, 1441 (1984)

[c6] B. L. Stansfield et al., Phys. Rev. Lett. 26, 1219 (1971)

[c7] C. J. Pawley et al., Phys. Rev. Lett. 49, 877 (1982)

[c8] T. Tajima and J. M. Dawson, Phys. Rev. Lett. 43, 267 (1979)

[c9] C. Joshi et al., Nature 311, 525 (1984)

[c10] D. W. Forslund et al., Phys. Rev. Lett. 54, 558 (1985)

[c11] C. Joshi et al., Phys. Rev. Lett. 48, 874 (1982)

[c12] D. W. Forslund et al., Phys. Fluids 18, 1002 (1975)

[c13] C. E. Clayton et al., to be published

[c14] H. Figueroa, private communication

[c15] F. E. Terman and J. M. Pettit, Electronic Measurements (McGraw-Hill, New York, 1952), pp. 259-260

[c16] R. E. Slusher and C. M. Surko, Phys. Fluids 23, 472 (1980)

[c17] Omitted endnote

[c18] P. K. Kaw et al., Phys. Fluids 16, 1967 (1973)

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Relativistic Plasma-Wave Excitation by Collinear Optical Mixing

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References (18)

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