The thermal lens effect induced by nanosecond laser pulses in a media having large Kerr nonlinearity is studied. It is shown that thermal lensing is affected by pump-beam self-focusing due to the Kerr nonlinearity, which increases the sensitivity of the thermal lens technique to detect small linear or nonlinear absorption.
SwoffordR. F. and LongM. E, and AlbrechtA. C., J. Chem. Phys.65, 179 (1976).
4.
KozichV. P.MarcanoA. and HernándezO.F. E, and CastilloJ. A., Appl. Spectrosc.48, 1506 (1994).
5.
CastilloJ. and KozichV. P, and MarcanoA.O., Opt. Lett.19, 171 (1994).
6.
Sheik-BahaeM.SaidA. A.WeiT. H. and FlaganD. J, and Van StrylandE. W., IEEE, J. Quant. Electr.26, 760 (1990).
7.
ZhaoW. and Palffy-MuhorayP., Appl. Phys. Lett.63, 1613 (1993).
8.
TerazimaM. and HirotaN., J. Chem. Phys.100, 2481 (1994).
9.
BialkowskiS. E., Appl. Opt.32, 3177 (1993).
10.
Ramis-RamosG.BaezaBaeza J. J. and AlfonsoSimó E. F, Anal. Chim. Acta296, 107 (1994).
11.
KozichV. P.MarcanoA. and HernándezO.F. E, and CastilloJ. A., Appl. Spectrosc.47, 1419 (1994).
12.
WagnerW. G. and HausH. A, and MarburgerJ. H., Phys. Rev.175, 256 (1968).
13.
AkhmanovS. A. and KhokhlovR. V, and SukhorukovA. P., “Self-focusing, Self-defocusing and Self-modulation of Laser Beams”, in Laser Handbook, ArecchiF. T. and Schulz-DuBoisE. O., Eds. (North-Holland Publishing, Amsterdam, 1972), pp. 1151–1229.
14.
BelangerP.-A. and PareC., Appl. Opt.22, 1293 (1983).
