tailieunhanh - Advances in Solid-State Lasers: Development and Applications_2

Tham khảo sách 'advances in solid-state lasers: development and applications_2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 13 Toward TW-Peak-Power Single-Cycle IR Fields for Attosecond Physics and High-Field Science O. D. Mtìcke1 S. Alisauskas1 2 A. J. Verhoef1 A. Pugzlys1 A. Baltuska1 V. Smilgevicius2 J. Pocius3 L. Giniủnas3 R. Danielius3 and N. Forget4 1Photonics Institute Vienna University of Technology Gusshausstrasse 27-387 A-1040 Vienna 2Laser Research Center Vilnius University Saulétekio av. 10 LT-10223 Vilnius 3Light Conversion Ltd. P O Box 1485 Saulétekio av. 10 LT-10223 Vilnius 4Fastlite Bâtiment 403 Ecole Polytechnique FR-91128 Palaiseau 1Austria 2 3Lithuania 4France 1. Introduction Optical Parametric Chirped-Pulse Amplification OPCPA Dubietis et al. 1992 2006 has attracted a lot of attention as a promising route toward intensity scaling of few-cycle laser pulses. Intense carrier-envelope phase CEP -stable few-cycle laser pulses have numerous intriguing applications in attosecond and high-field science for a recent review see Krausz Ivanov 2009 including the production of attosecond XUV soft-X-ray pulses by high-harmonic generation HHG Hentschel et al. 2001 Kienberger et al. 2004 Sansone et al. 2006 tomographic imaging of molecular orbitals Itatani et al. 2004 and laser-induced electron diffraction Meckel et al. 2008 . A major challenge for using HHG in studies of time-resolved tomography of molecular dissociative states is the low ionization potential Ip of excited molecular states. The resulting competition between state depletion and HHG prevents generation of broad HHG spectra necessary for tomographic reconstruction. One solution are laser sources with high ponderomotive energy Up xX2I at moderate intensity level . infrared IR CEP-stable few-cycle high-power laser systems. The present immense interest of the ultrafast community in high-Up-sources Fuji et al. 2006 Vozzi et al. 2006 2007 2009 Takahashi et al. 2008a 2008b Gu et al. 2009 Mtìcke et al. 2009a 2009b Moses et al. 2009 has three major reasons 1 These sources open the door to previously inaccessible regimes of

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