RT Journal Article
T1 On the origin of the acoustic signals generated in KDP by pulsed UV laser excitation
A1 Martínez Matos, Óscar
A1 Torchia, Gustavo Adrián
A1 Bilmes, Gabriel M.
A1 Tocho, Jorge Omar
A1 Ranea Sandoval, Héctor Francisco
AB The origin of the acoustic signals that are generated in the bulk of a KDP crystal during irradiation with short UV laser pulses is determined. The generation of these signals by excitation with moderate or high optical fluences is linked to the evolution of the population of point defects that is generated in the crystal by absorption of two UV photons. These defects are bleached due to their efficient linear absorption of UV radiation, and their non-radiative relaxation is shown to be the origin of the acoustic signals. The rate constants for the different processes involved in both the linear and the non-linear interactions were determined from the experiments presented here. Characteristic values for the quantum efficiency for the generation of defects, η_F = 0.95 ± 0.05, and for the quantum efficiency for bleaching of defects, η_B = 0.065 ± 0.005, were obtained for 266-nm laser radiation. The model developed for the intensity of the acoustic signals reproduces the experimental facts with very good accuracy.
PB Springer-Verlag
SN 0946-2171
YR 2005
FD 2005-04
LK https://hdl.handle.net/20.500.14352/51025
UL https://hdl.handle.net/20.500.14352/51025
LA eng
NO 1.	C.K.N. Patel, A.C. Tam, Rev. Mod. Phys. 53(3), 517 (1981) 2.	A.C. Tam, Rev. Mod. Phys. 58(2), 381 (1986) 3.	J.O. Tocho, G.M. Bilmes, H.F. Ranea-Sandoval, Appl. Phys. B 69, 473 (1999) 4.	O.M. Matos, PhD Thesis, Universidad Nacional de La Plata (2002) 5.	O.M. Matos, G.A. Torchia, G.M. Bilmes, J.O. Tocho, Phys. Rev. B 69, 224, 102 (2004) 6.	P. Weiss, Science 275, 1569 (1997) 7.	J. Glanz, Science 277, 304 (1997) 8.	K. Tsuchida, R. Abe, M. Naito, J. Phys. Soc. Jpn. 35(3), 806 (1973) 9.	J.A. McMillan, J.M. Clemens, J. Chem. Phys. 68(9), 3627 (1978) 10.	E. Dieguez, J.M. Cabrera, J. Phys. D: Appl. Phys. 14(1), 91 (1981) 11.	S.G. Demos, M. Yan, M. Staggs, J.J. De Yoreo, H.B. Radowsky, Appl. Phys. Lett. 72, 2367 (1998) 12.	L.N. Ogorodnikov, V.Y. Yakovlev, B.V. Shul’gin, M.K. Satybaldieva, Phys. Solid State 44, 880 (2002) 13.	S.D. Setzler, K.T. Stevens, L.E. Halliburton, M. Yan, N.P. Zaintseva, J.J. De Yoreo, Phys. Rev. B 57, 2643 (1998) 14.	E. Dieguez, J.M. Cabrera, F. Agulló-López, J. Chem. Phys. 81, 3369 (1984) 15.	J.-T. Yu, S.-H. Lou, J. Phys. Soc. Jpn. 62, 3294 (1993) 16.	C.D. Marshall, S.A. Payne, M.A. Henesian, J.A. Speath, H.T. Powell, J. Opt. Soc. Am. B 11, 774 (1994) 17.	J.E. Davis, R.S. Hughes, H.W.H. Lee, Chem. Phys. Lett. 207, 540 (1993)
NO © Springer-Verlag 2005.Thisworkwas partially supported by FOMEC, CONICET, ANPCYT, UNCPBA, and UNLP. OEM is a Fellow of FOMEC; GMB is a member of the Carrera del Investigador Científico CIC-BA; JOT and HFRS are both members of the Carrera del Investigador Científico CONICET.
NO Fondo para el mejoramiento de la calidad universitaria (FOMEC), Argentina
NO Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Argentina
NO Agencia Nacional de Promoción Científica y Tecnológica (ANPCYT), Argentina
NO Universidad Nacional del Centro de la Provincia De Buenos Aires (UNCPBA)
NO Universidad Nacional de La Plata (UNLP), Argentina
NO GMB
NO Carrera del Investigador Científico (CIC-BA)
NO JOT
NO HFRS
NO Carrera del Investigador Científico (CONICET)
NO Comisión de Investigaciones Científicas (CIC), Argentina
DS Docta Complutense
RD 28 abr 2024