Circularly Polarized High Harmonics in Argon: Dipole and Non-Dipole Effect

Yıl 2023, Cilt: 9 Sayı: 1, 188 - 196, 30.06.2023

Dilan Alp , İlhan Candan

https://doi.org/10.29132/ijpas.1269696

Öz

The interaction of the intense laser pulse, which forms the basis of the strong laser field and non-linear optical physics, with atoms, molecules, and solids leads to the High Order Harmonic Generation (HHG). There are many theoretical and experimental research related to this process defined by the Semi-Classic Model which is called the Three Step Model. In this article, the dipole and non-dipole effects specified in the theoretical Lewenstein model to be used in the Argon atom interacting with the strong circular laser field (800nm) and the resulting higher order harmonic spectrum will be investigated. We compared the results obtained using the non-collinear beams with opposite circular polarizations with those obtained using a single circularly polarized beam or a linearly polarized beam. It could be said that the circular polarization can significantly affect the HHG process in an argon atom exposed to a laser field with 800 nm wavelength and 1015 W/cm2 intensity.

Anahtar Kelimeler

Argon, high harmonic generation, dipole, non-dipole

Destekleyen Kurum

Şırnak Üniversitei

Proje Numarası

2019.FNAP.06.03.01, 2019

Teşekkür

This research has been supported by Şırnak University Scientific Research Projects Coordination Unit. Project Number: 2019.FNAP.06.03.01, 2019. A part of this work presented at the Turkish Physical Society 35.th International Physics Congress.

Argonda Dairesel Polarize Yüksek Harmonikler: Dipol ve Dipol Olmayan Etki

Öz

Güçlü lazer alanının ve doğrusal olmayan optik fiziğin temelini oluşturan yoğun lazer darbesinin atomlar, moleküller ve katılarla etkileşimi, Yüksek Dereceli Harmonik Üretime (HHG) yol açar. Üç Adım Modeli olarak adlandırılan Yarı Klasik Model ile tanımlanan bu süreçle ilgili birçok teorik ve deneysel araştırma mevcuttur. Bu makalede, güçlü dairesel lazer alanı (800nm) ile etkileşen Argon atomunda kullanılacak teorik Lewenstein modelinde belirtilen dipol ve dipol olmayan etkiler ve bunun sonucunda ortaya çıkan yüksek dereceli harmonik spektrum incelenecektir. Zıt dairesel polarizasyonlara sahip doğrusal olmayan ışınlar kullanılarak elde edilen sonuçları, tek bir dairesel polarize ışın veya doğrusal polarize bir ışın kullanılarak elde edilen sonuçlarla karşılaştırdık. 800 nm dalga boyunda ve 1015 W/cm2 yoğunlukta bir lazer alanına maruz bırakılan bir argon atomunda dairesel polarizasyonun HHG sürecini önemli ölçüde etkileyebileceği söylenebilir.

Anahtar Kelimeler

Argon, yüksek harmonik üretimi, dipol, dipol olmayan

Proje Numarası

2019.FNAP.06.03.01, 2019

Kaynakça

• Alp, D. (2017). Super Intensity Laser Fields Interacted with Atomic System in Multiphoton Processes: Non-Dipole and Non-Relativistic Effects. International Journal of Pure and Applied Sciences, 3(2), 1-9.
• Ayuso, D., Jiménez-Galán, A., Morales, F., Ivanov, M., & Smirnova, O. (2017). Attosecond control of spin polarization in electron–ion recollision driven by intense tailored fields. New Journal of Physics, 19(7), 073007.
• Barth, I., & Smirnova, O. (2011). Nonadiabatic tunneling in circularly polarized laser fields: Physical picture and calculations. Physical Review A, 84(6), 063415.
• Brennecke, S., & Lein, M. (2018). High-order above-threshold ionization beyond the electric dipole approximation: Dependence on the atomic and molecular structure. Physical Review A, 98(6), 063414.
• Brixner, T., Krampert, G., Pfeifer, T., Selle, R., Gerber, G., Wollenhaupt, M., Graefe, O., Horn, C., Liese, D., Baumert, T. (2004). Quantum control by ultrafast polarization shaping. Physical review letters, 92(20), 208301.
• Budil, K., Salières, P., L’Huillier, A., Ditmire, T., & Perry, M. (1993). Influence of ellipticity on harmonic generation. Physical Review A, 48(5), R3437.
• Cavalieri, A.L., Müller, N., Uphues, T., Yakovlev, V.S., Baltuska, A., Horvath, B., Schmidt, B., Blümel, L., Holzwarth, R., Hendel, S., Drescher, M., Kleineberg, U., Echenique, P.M., Kienberger, R., Krausz, F., Heinzmann, U. (2007). Attosecond spectroscopy in condensed matter. Nature, 449(7165), 1029-1032.
• Cohen, E. R., DuMond, J. W., Bethe, H., & Salpeter, E. (1957). Quantum Mechanics of One-and Two-Electron Systems. Atoms I/Atome I, 88-436.
• Dietrich, P., Burnett, N. H., Ivanov, M., & Corkum, P. B. (1994). High-harmonic generation and correlated two-electron multiphoton ionization with elliptically polarized light. Physical Review A, 50(5), R3585.
• Duesterer, S., Rading, L., Johnsson, P., Rouzee, A., Hundertmark, A., Vrakking, M. J. J., Radcliffe, P., Meyer, M., Kazansky, A. K., Kabachnik, N. M. (2013). Interference in the angular distribution of photoelectrons in superimposed XUV and optical laser fields. Journal of Physics B: Atomic, Molecular and Optical Physics, 46(16), 164026.
• Fan, T., Grychtol, P., Knut, R., Hernández-García, C., Hickstein, D. D., Zusin, D., . . . Hogle, C. W. (2015). Bright circularly polarized soft X-ray high harmonics for X-ray magnetic circular dichroism. Proceedings of the National Academy of Sciences, 112(46), 14206-14211.
• Fleischer, A., Kfir, O., Diskin, T., Sidorenko, P., & Cohen, O. (2014). Spin angular momentum and tunable polarization in a high-harmonic generation. Nature Photonics, 8(7), 543-549.
• Goulielmakis, E., Loh, Z.-H., Wirth, A., Santra, R., Rohringer, N., Yakovlev, V. S., . . . Kling, M. F. (2010). Real-time observation of valence electron motion. Nature, 466(7307), 739-743.
• Hartung, A., Morales, F., Kunitski, M., Henrichs, K., Laucke, A., Richter, M., . . . Schmidt, L. P. H. (2016). Electron spin polarization in strong-field ionization of xenon atoms. Nature Photonics, 10(8), 526-528.
• Herath, T., Yan, L., Lee, S. K., & Li, W. (2012). Strong-field ionization rate depends on the sign of the magnetic quantum number. Physical Review Letters, 109(4), 043004.
• Hernández-García, C., Durfee, C. G., Hickstein, D. D., Popmintchev, T., Meier, A., Murnane, M. M., . . . Becker, A. (2016). Schemes for generation of isolated attosecond pulses of pure circular polarization. Physical Review A, 93(4), 043855.
• Husakou, A., Kelkensberg, F., Herrmann, J., & Vrakking, M. (2011). Polarization gating and circularly-polarized high harmonic generation using plasmonic enhancement in metal nanostructures. Optics Express, 19(25), 25346-25354.
• Itatani, J., Levesque, J., Zeidler, D., Niikura, H., Pépin, H., Kieffer, J.-C., . . . Villeneuve, D. M. (2004). Tomographic imaging of molecular orbitals. Nature, 432(7019), 867-871.
• Kerbstadt, S., Englert, L., Bayer, T., & Wollenhaupt, M. (2017). Ultrashort polarization-tailored bichromatic fields. Journal of Modern Optics, 64(10-11), 1010-1025.
• Kfir, O., Grychtol, P., Turgut, E., Knut, R., Zusin, D., Popmintchev, D., . . . Fleischer, A. (2015). Generation of bright phase-matched circularly-polarized extreme ultraviolet high harmonics. Nature Photonics, 9(2), 99-105.
• Krause, J. L., Schafer, K. J., & Kulander, K. C. (1992). High-order harmonic generation from atoms and ions in the high-intensity regime. Physical Review Letters, 68(24), 3535.
• Lewenstein, M., Balcou, P., Ivanov, M. Y., L’huillier, A., & Corkum, P. B. (1994). Theory of high-harmonic generation by low-frequency laser fields. Physical Review A, 49(3), 2117.
• Li, W., Zhou, X., Lock, R., Patchkovskii, S., Stolow, A., Kapteyn, H. C., & Murnane, M. M. (2008). Time-resolved dynamics in N2O4 probed using high harmonic generation. Science, 322(5905), 1207-1211.
• Liang, Y., Angst, S., Ammosov, M., & Lazarescu, S. (1995). S. L. Chin Experimental investigation of ellipticity dependence of high-harmonic generation and ionization in argon in the multiphoton regime. J. Phys. B, 28, 2757.
• Long, S., Becker, W., & McIver, J. (1995). Model calculations of polarization-dependent two-color high-harmonic generation. Physical Review A, 52(3), 2262.
• Marangos, J. P., Baker, S., Kajumba, N., Robinson, J. S., Tisch, J. W., & Torres, R. (2008). Dynamic imaging of molecules using high-order harmonic generation. Physical Chemistry Chemical Physics, 10(1), 35-48.
• Medišauskas, L., Wragg, J., Van Der Hart, H., & Ivanov, M. Y. (2015). Generating isolated elliptically polarized attosecond pulses using bichromatic counterrotating circularly polarized laser fields. Physical Review Letters, 115(15), 153001.
• Milošević, D. (2016). Possibility of introducing spin into attoscience with spin-polarized electrons produced by a bichromatic circularly polarized laser field. Physical Review A, 93(5), 051402.
• Milošević, D., & Becker, W. (2002). Role of long quantum orbits in high-order harmonic generation. Physical Review A, 66(6), 063417.
• Milošević, D. B., Becker, W., & Kopold, R. (2000). Generation of circularly polarized high-order harmonics by two-color coplanar field mixing. Physical Review A, 61(6), 063403.
• Milošević, D. B., Hu, S., & Becker, W. (2000). Quantum-mechanical model for ultrahigh-order harmonic generation in the moderately relativistic regime. Physical Review A, 63(1), 011403.
• Pisanty, E. (2016). RB-SFA: High harmonic generation in the strong field approximation via mathematica. In.
• Pisanty, E., Hickstein, D. D., Galloway, B. R., Durfee, C. G., Kapteyn, H. C., Murnane, M. M., & Ivanov, M. (2018). High harmonic interferometry of the Lorentz force in strong mid-infrared laser fields. New Journal of Physics, 20(5), 053036.
• Reiss, H. R. (1980). Effect of an intense electromagnetic field on a weakly bound system. Physical Review A, 22(5), 1786.
• Salieres, P., L'huillier, A., Antoine, P., & Lewenstein, M. (1997). Study of the spatial and temporal coherence of high-order harmonics. arXiv preprint quant-ph/9710060.
• Tempea, G., Geissler, M., & Brabec, T. (1999). Phase sensitivity of high-order harmonic generation with few-cycle laser pulses. JOSA B, 16(4), 669-673.
• Weihe, F., Dutta, S., Korn, G., Du, D., Bucksbaum, P., & Shkolnikov, P. (1995). Polarization of high-intensity high-harmonic generation. Physical Review A, 51(5), R3433.
• Wiehle, R. (2005). Experimental examination of ionization processes of noble gases in strong laser fields. Ph. D. thesis, Albert Ludwigs Universität, Freiburg,
• Yuan, K.-J., & Bandrauk, A. D. (2011). Circularly polarized molecular high-order harmonic generation in H 2+ with intense laser pulses and static fields. Physical Review A, 83(6), 063422.