Optically-pumped DUV atomic vapor lasers

Coherent light generators – Particular active media – Gas

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C372S055000

Reexamination Certificate

active

10877289

ABSTRACT:
Optically-pumped group IIB atomic vapor lasers emitting at discrete wavelengths shorter than 230 nm are disclosed. This laser device utilizes an active medium comprising a mixture of a group IIB atomic vapor and one or more buffer gases placed within a doubly-resonant optical cavity that enables the realization of a population inversion between the first1P1level and the1S0ground level of the group IIB atoms. The laser may operate in a pure continuous-wave mode, or in a high-repetition pulsed mode, at DUV wavelengths of ˜185 nm (mercury), ˜229 nm (cadmium) and ˜214 nm (zinc).

REFERENCES:
patent: 4188591 (1980-02-01), Siegman et al.
patent: 5769844 (1998-06-01), Ghaffari
patent: 6525868 (2003-02-01), Merriam et al.
A. V. Smith, W. J. Alford, and G. R. Hadley, “Optimization of two-photon-resonant, four-wave mixing: application to 130.2-nm generation in mercury vapor”, J. Opt. Soc. Am., B5, 1503-1519 (1988).
A. Caprara, S. Butterworth, Y. Kil, T. Thonn, K. Hubbard, A. MacLeod, E. Rea, C. Seaton, and L. Spinelli, “200 mW continuous wave laser source at 198.5 nm for lithographic applications”, SPIE symposium Optical Microlithography XVII, Santa Clara, CA Feb. 23-27, 2004. To be published in SPIE proceedings vol. 5377.
M. Artusy, N. Holmes, and A. E. Siegman, “dc-excited and sealed-off operation of the optically pumped 546.1 Hg laser”, Appl. Phys. Letters, 28, 133-134 (1976).
N. C. Holmes and A. E. Siegman, “The optically pumped mercury vapor laser”, J. Applied Physics, 49, 3155-3170 (1978).
N. Djeu and R. Burnham, “Optically pumped cw Hg laser at 546.1 nm” Appl. Phys. Letters, 25, 350-351 (1974).
V. B. Znamenskii, “Optically pumped pulsed laser with a mixture of mercury (λ=546.1 nm) and nitrogen”, Sov. Phys. Tech. Phys., 23, 244-245 (1978).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optically-pumped DUV atomic vapor lasers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optically-pumped DUV atomic vapor lasers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optically-pumped DUV atomic vapor lasers will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3892297

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.