We report strong lasing in zinc on the neonlike 3p → 3s, J = 0 → 1 transition at 21.2 nm when the prepulse technique of using a low-intensity prepulse before the main optical drive pulse is used with the 1.315-μm Asterix laser to illuminate the zinc target. Without the use of the prepulse, this line is not visible. The usual J = 2 → 1 lines at 26.2 and 26.7 nm are observed weakly both with and without the use of the prepulse. By variation of the prepulse energy, we demonstrate that even a very weak prepulse with less than 0.1% of the main pulse energy can enable the zinc to lase at 21.2 nm.
© 1995 Optical Society of America
Original Manuscript: September 13, 1994
Published: February 15, 1995
Ernst E. Fill, Joseph Nilsen, Yuelin Li, Dieter Schlögl, and Jürgen Steingruber, "Sensitivity of lasing in neonlike zinc at 21.2 nm to the use of the prepulse technique," Opt. Lett. 20, 374-376 (1995)