Laser applications and other topics in quantum electronics

Resolving power requirements of laser electron-beam tubes (quantoscopes)

O. V. Bogdankevich^a, V. P. Kuznetsov^b, A. N. Kotyukov^b, S. B. Sozinov<sup>c

a</sup> Scientific-Research Laboratory of Appiled Ecology of the Ministry of Health of the Russian Federation, Moscow
^b "Modus" Research and Development Enterprise of the Russian Academy of Sciences, Moscow
^c Moscow Engineering Physics Institute (State University)

Abstract: An experimental comparison was made of the focusing of coherent quasi-Gaussian radiation beams from laser electron-beam tubes (quantoscopes) with the results of model calculations based on the Fresnel-Kirchhoff transformation of the complex amplitude of the transverse lasing-mode field. The resolving power of the projection systems based on electron-beam tubes was found to be 4 — 5 times higher than that attained in the usual projection kinescopes, and could reach 2000 — 3000 pixels per scanning line. It was also found that the optical resolving power of the projection instruments based on laser electron-beam tubes could exceed the resolving power of the same tubes calculated on the basis of the electron-optical parameters.

PACS: 42.55.Px, 42.30.Yc, 42.79.Ls

Received: 10.12.1997

 English version: Quantum Electronics, 1998, 28:4, 370–373

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