Generation of third-harmonic radiation of IR picosecond lasers for ultrafast pulsed laser deposition

Andrei V. Rode; Eugene G. Gamaly; Olivier P. Uteza; V. Kolev; M. Lederer; Barry Luther-Davies

doi:10.1117/12.513620

9 April 2003 Generation of third-harmonic radiation of IR picosecond lasers for ultrafast pulsed laser deposition

Andrei V. Rode, Eugene G. Gamaly, Olivier P. Uteza, V. Kolev, M. Lederer, Barry Luther-Davies

Author Affiliations +

Proceedings Volume 5131, Third GR-I International Conference on New Laser Technologies and Applications; (2003) https://doi.org/10.1117/12.513620
Event: Third GR-I International Conference on New Laser Technologies and Applications, 2003, San Diego, CA, United States

Abstract

Despite a lot of researches on Pulsed Laser Deposition (PLD) for film production over the years, it has largely been an unsuccessful technology because of the poor quality of laser deposited films, generally due to particle contamination. A way of improving the quality of thin films was recently developed at LPC by using MHz-repetition-rate IR laser pulses of ps-range pulse duration. As a result, Ultrafast PLD outperforms other methods in terms of surface quality, deposition rate and energy efficiency by up to three orders of magnitude. In addition, it is desirable to use short laser wavelength to more easily atomize the materials and also favor the material ablation through photochemical processes during the laser-matter interaction. An optical two-crystal tripling system has then been developed to produce high energy UV photons from a mode locked Nd:YVO₄ laser (1.064 μm, 5.7 MHz, 12 ps, up to 1.5 W). A large number of UV photons can be obtained with this optical scheme providing optimum laser characteristics for efficient PLD. This is further applied to the synthesis of various high quality thin films, including polymer films and nonlinear optical films for photonic applications.

Citation Download Citation

Andrei V. Rode, Eugene G. Gamaly, Olivier P. Uteza, V. Kolev, M. Lederer, and Barry Luther-Davies "Generation of third-harmonic radiation of IR picosecond lasers for ultrafast pulsed laser deposition", Proc. SPIE 5131, Third GR-I International Conference on New Laser Technologies and Applications, (9 April 2003); https://doi.org/10.1117/12.513620

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