We report gain-saturated operation of a 13.2 nm tabletop laser in Ni-like Cd at a 5 Hz repetition rate. A gain-length product G×L=17.6 was obtained by heating a precreated plasma with 8 ps duration Ti:sapphire laser pulses with an energy of only 1 J impinging at a grazing angle of 23°. With an average power of ∼1 µW, this laser is an attractive coherent source for at-wavelength metrology of extreme UV lithography optics and other applications.
[Note: Due to a production error in the print version abstract, the value "1 µW" is incorrectly stated as "1 mW." This value is stated correctly in the online PDF.]
© 2005 Optical Society of America
Lasers and Laser Optics
J. J. Rocca, Y. Wang, M. A. Larotonda, B. M. Luther, M. Berrill, and D. Alessi, "Saturated 13.2 nm high-repetition-rate laser in nickellike cadmium," Opt. Lett. 30, 2581-2583 (2005)