A new saturable absorber for the CO2 laser using doped KCl
- 15 October 1978
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 33 (8), 705-707
- https://doi.org/10.1063/1.90508
Abstract
A new class of saturable absorbers for 10‐μm applications using doped alkali halides is demonstrated. For the ReO−4 molecular ion in KCl, the vibrational transition saturates like an ideal two‐level system. This behavior is a result of the large anharmonic shift in the absorption spectra of the dopant ion. Saturation parameters of 1.45 MW/cm2 and a relaxation time T1 of 120 ps are measured at room temperature.Keywords
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