Nonlinear and electron-beam-induced absorption in pure quartz glasses at the wavelengths of excimer lasers

Сергеев П.Б., Сергеев А.П., Зворыкин В.Д. Нелинейное и наведенное электронным пучком поглощение в чистых кварцевых стеклах на длинах волн эксимерных лазеров // Оптический журнал. 2009. Т. 76. № 5. С. 13–17.

Sergeev P.B., Sergeev A.P., Zvorykin V.D. Nonlinear and electron-beam-induced absorption in pure quartz glasses at the wavelengths of excimer lasers [in Russian] // Opticheskii Zhurnal. 2009. V. 76. № 5. P. 13–17.

P. B. Sergeev, A. P. Sergeev, and V. D. Zvorykin, "Nonlinear and electron-beam-induced absorption in pure quartz glasses at the wavelengths of excimer lasers," Journal of Optical Technology. 76 (5), 259-262 (2009). https://doi.org/10.1364/JOT.76.000259

The two-photon absorption coefficients β at wavelengths 248 and 193nm with pulse widths 80 and 60ns, respectively, have been measured in KS-4V, KU-1, and Corning 7980 glasses. The value of β at 248nm in KS-4V was 0.16cm/GW, which was about 30% higher than in the other glasses. At a wavelength of 193nm, the value of β virtually coincided at a level of 1.1cm/GW in all the samples. The coupling factors between the electron-beam (EB)-induced quasi-steady-state optical density at wavelengths 353, 248, and 193nm and the EB power density on the samples were measured for the same glasses, using the radiations of XeF, KrF, and ArF lasers. These factors in KS-4V were 1, 4, and 6cm2/GW, respectively. The measurement error did not exceed 50%.

The authors are thankful to Evlampiev I.K. for presenting the samples of KS-4V glass.

The research was supported by RFBR, grant No. 05-02-16195-а, and Naval Research Laboratory program.