Abstract
We investigated X-ray yield and second-harmonic generation during femtosecond laser drilling of solid targets placed in vacuum or air. Laser pulse intensity was about 1016 W/cm2 and repetition rate was 10 Hz. Hard X-ray yield (E > 2.5 keV) and second-harmonic signal are non-monotone and reach a maximum during formation of microchannel in a target. That indicates that both signals can be utilized as a feedback for monitoring laser energy deposition to the target under laser microdrilling. Spectrum of second harmonic emitted from laser-drilled microchannel is blueshifted regardless of target type or environment (vacuum or air surrounding the target). The blueshift reaches the value of about 30 nm. The spectrum of fundamental radiation backreflected from the microchannel has also corresponding blueshift. This testifies that the cloud of ablated particles accumulates inside the microchannel. Incident laser radiation undergoes self-action inside the cloud, as a result occurs the spectral modification of incident radiation and its second harmonic.
Similar content being viewed by others
References
F. Dausinger, F. Lichtner, H. Lubatschowski, Femtosecond Technology for Technical and Medical Applications, 1st edn. (Springer, Berlin, 2004)
S. Döring, J. Szilagyi, S. Richter, F. Zimmermann, M. Richardson, A. Tünnermann, S. Nolte, Opt. Express 20, 27147 (2012)
V.V. Kononenko, V.V. Konov, E.M. Dianov, Opt. Lett. 37(16), 3369 (2012)
P. Webster, J.X.Z. Yu, B.Y.C. Leung, M.D. Anderson, V.X.D. Yang, J.M. Fraser, Opt. Lett. 35, 646 (2010)
A. Baskevicius, A. Alesenkov, G. Chozevskis, J. Litvaityte, O. Balachninaite, D. Paipulas, A. Melninkaitis, V. Sirutkaitis, J. Laser Micro Nanoeng. 8, 24 (2013)
F. Mezzapesa, L.L. Columboa, A. Ancona, M. Dabbicco, V. Spagnolo, M. Brambilla, P.M. Lugarà, G. Scamarcio, Phys. Procedia 41, 663 (2013)
F. Dausinger, H. Hügel, V. Konov, Proc. SPIE 5147, 106 (2003)
S.V. Govorkov, N.I. Koroteev, I.L.Shumay, in Proceedings of the Seventh International Symposium on Ultrafast Processes in Spectroscopy, Institute of Physics Conference 126, 113, 1992
J. Thogersen, A. Borowiec, H.K. Haugen, F.E. McNeill, I.M. Stronach, Appl. Phys. A 73, 361 (2001)
V.M. Gordienko, I.A. Makarov, E.V. Rakov, A.B. Savel’ev, Quantum Electron. 35, 487 (2005)
V.M. Gordienko, I.A. Zhvania, I.A. Makarov, Laser Phys. 18, 380 (2008)
K. Mishchik, C. D’Amico, P. Velpula, C. Mauclair, A. Boukenter, Y. Ouerdane, R. Stoian, J. Appl. Phys. 114, 133502 (2013)
D. Von der Linde, H. Schulz, T. Engers, H. Schiiler, IEEE J. Quantum Electron. 28, 2388 (1992)
S.V. Govorkov, N.I. Koroteev, I.L. Shymay, in Proceedings of the 7th International Symposium on Ultrafast Spectroscopy, ed. by A. Laubereau, A. Selmeier, IOP, 113, 1991
A.B. Savel’ev, S.A. Akhmanov, I.M. Bayanov, S.V. Gaponov, V.M. Gordienko, M.S. Dzhidzhoev, S.V. Krayushkn, S.A. Magnitsky, V.T. Platonenko, Y.Y. Platonov, Y.V. Ponomarev, N.N. Salaschenko, E.V. Slobodchikov, A.P. Tarasevich, SPIE Proc. 1627, 334 (1992)
R.A. Ganeev, J. Chakera, M. Raghuramaiah, A. Sharma, P. Naik, P. Gupta, Phys. Rev. E 63, 026402 (2001)
R.S. Marjoribanks, L. Zhao, F.W. Budnik, G. Kulcsar, A. Viteu, H. Higaki, R. Wagner, A. Maksimchuk, D. Umstadter, S.P. Le Blanc, M.C. Downer, in AIP Conference Proceedings. Superstrong Fields Plasma First International Conference, 342, 1998
A. Varanavicius, T.V. Vlasov, R.V. Volkov, S.A. Gavrilov, V.M. Gordienko, A. Dubetis, E. Zeromskis, A. Piskarskas, A.B. Savel’ev, G. Tamosauskas, Quantum Electron. 30, 523 (2000)
N. Zhavoronkov, Y. Gritsai, M. Bargheer, M. Woerner, T. Elsaesser, Appl. Phys. Lett. 86, 244107 (2005)
S.M. Klimentov, V.I. Konov, in Fundamentals of Laser-Assisted Micro- and Nanotechnologies, vol. 195, ed. by V.P. Veiko, V.I. Konov. Optical Breakdown in Ambient Gas and Its Role in Material Processing by Short-Pulsed Lasers, Chapter 4 (Springer, New York), p. 77
V.M. Gordienko, A.S. Khomenko, I.A. Makarov, V.P. Petukhov, Laser Phys. 20, 816 (2010)
S. Döring, S. Richter, T. Ullsperger, A. Tünnermann, S. Nolte, Proc. SPIE 8611, 86111D (2013)
V.V. Bukin, S.V. Garnov, A.D. Trofimov, JETP Lett. 93, 568 (2011)
W.M. Wood, G. Focht, M.C. Downer, Opt. Lett. 13, 984 (1988)
V.V. Bukin, N.S. Vorob’ev, S.V. Garnov, V.I. Konov, V.I. Lozovoi, A.A. Malyutin, MYa. Shchelev, I.S. Yatskovskii, Quantum Electron. 36, 638 (2006)
Acknowledgments
This work was supported by Russian Foundation for Basic Research, Grant No. 14-02-00814.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gordienko, V.M., Zhvaniya, I.A. & Makarov, I.A. X-ray production and second-harmonic generation during femtosecond laser microdrilling. Appl. Phys. A 120, 409–415 (2015). https://doi.org/10.1007/s00339-015-9202-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00339-015-9202-4