Abstract
A simple design for a transversely excited atmospheric pressure (TEA) nitrogen laser capable of repetition rates up to 100 Hz is described. Commercial-grade N2 is blown through the open laser channel so that no vacuum system is necessary. Without any mirror the laser provides UV outputs ( lambda =337.1 nm) at both laser ends with a total average power of up to 23 mW. Using one of them to pump a Hansch-type dye laser and the other to synchronously pump an amplifier we obtain, with rhodamine 6G as the lasing dye, tunable pulses with an energy of approximately 1 mu J and a bandwidth of less than 0.07 nm.
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