Amazing Light: A Volume Dedicated To Charles Hard Townes On by Arthur L. Schawlow (auth.), Raymond Y. Chiao (eds.) PDF

By Arthur L. Schawlow (auth.), Raymond Y. Chiao (eds.)

This Festschrift is a suite of essays contributed by means of scholars, colleagues, and advert­ mirers to honor an eminent pupil on a different anniversary: Charles difficult Townes at the party of his eightieth birthday, July 28, 1995. In 1964, Townes shared the Nobel Prize in physics with Alexander Mikhailovich Prokhorov and Nikolai Gen­ nadyevich Basov "for basic paintings within the box of quantum electronics, which has resulted in the development of oscillators and amplifiers in accordance with the maser-laser precept. " His contributions have coated a much broader region, besides the fact that. His fruitful pursuits spanning a number of a long time have incorporated many medical matters, includ­ ing, microwave spectroscopy and astrophysics (other articles during this quantity will extend extra in this point). He has additionally contributed to public carrier, having served because the chairman of the technology and know-how Advisory Committee for NASA's Apollo software, and as a member and vp of the President's technology Advisory Committee. because the huge, immense breadth of contributions from his scholars indicates, he has trained students who're now in quite a lot of fields. The contributions from his many admirers, between whom are 9 fellow Nobel laureates, attest to his impression on many disciplines starting from electric engi­ neering to medication. His effect extends even to theology, as is indicated by way of one essay. The greatly foreign personality of this Festschrift displays his deep trust within the foreign, common nature of science.

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At the transportable laser (TE-30T) the magnetic hyperfine structure of the 2 ) -methane line is resolved (y ~ 5 ... 7 kHz, y/w ~ (5 ... 10- 11 ), at the stationary one (TE-200) the recoil doublet is resolved (y ~ 400 ... 800 Hz, y / wo ~ (4 ... 8) . 10- 12 ). 3 Absolute Frequency Measurements The reference methane lines with relative widths of the order of 5 . 10- 12 obtained at the stationary laser permit achieving a frequency reproducibility at the level of 10- 13 - 10- 14, comparable to a primary cesium standard.

Phillips, MNRAS 199, 31p (1982). [5] S. C. Beck, J. T. Turner, P. T. P. Ho, J. H. Lacy, and D. M. Kelly, submitted to ApJ (1995). 4 The Laser Stabilitron William R. Bennett, Jr. and Vieniamin P. Chebotayev The late Vieniamin Pavlovich Chebotayev was a visiting professor in my laboratory at Yale University, on leave from the Institute for Laser Physics, Academy City, Novosibirsk, Russia, when we started this paper. Although his sudden death during that stay prevented completion ofthe work in the form we originally had envisioned, I am confident that he would have approved publishing this paper in a volume honoring Charles Townes.

The desired condition for oscillation 32 Wm. R. , V. P. 3. The intensities I} and 12 versus gain for the optimum value of the absorption Acri! for the parameters used in Fig. 2. Note the plateau in the laser intensity I} at point b, corresponding to the optimum operating conditions in Fig. 2. Note that I} is independent of the gain over this plateau and the output of the laser (to the left in Fig. 1 (a» should be nearly independent of fluctuations in the gain. corresponds to the saturated gain curve (dashed curve in Fig.

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