DEVICE FOR PRODUCING STIMULATED INFRARED EMISSION, IRASER, BY MEANS OF AN ELECTRIC DISCHARGE IN A GAS MIXTURE CONSISTING PARTLY OF CARBONIC ACID GAS, AND DISCHARGE TUBE DESTINED FOR SUCH A DEVICE
1,205,204. Lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 12 Feb., 1969 [15 Feb., 1968], No. 7631/69. Heading H1C. In order to compensate for the absorption of water vapour in the walls of the discharge tube of an infra-red gaseous laser the active medium of which comprises carbon dioxi...
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