Low-pressure mercury resonance radiation source

Details Low-pressure mercury resonance radiation source Low-pressure mercury resonance radiation source

1989-10-16

1990-11-27

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Having particular beam control circuit component

372 69, 372109, 372 33, H01S 313

Patent

active

049742272

ABSTRACT:
A low-pressure mercury resonance radiation source includes a discharge lamp containing mercury vapor and producing broad band radiation directly emitted from the mercury vapor through excitation of same by electric discharge, and a resonance cell containing mercury vapor and disposed adjacent the discharge lamp for absorbing the broad band radiation and reemitting narrow band mercury resonance radiation. The pressure of the mercury vapor within the resonance cell is controlled to a first predetermined value by controlling the temperature of a first mercury sump arranged within the resonance cell, and the pressure of the mercury vapor within the discharge lamp is controlled to a second predetermined value, preferably by controlling the temperature of a second mercury sump arranged in a side tube communicating with the discharge lamp.

REFERENCES:
Hattori et al; "Stabilized Monochromatic Radiation Source Using the Mercury Resonance Line (2537 .ang.)"; Phys. D: Appl. Phys., vol. 3, 1970 (printed in Great Britain).

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