CC BY
1The 30th International Conference on Advanced Laser Technologies ALT'23
N-I-25
Light frequency conversion by periodically poled ferroelec-
trics
V. Shur1, A. Akhmatkhanov1, A. Esin1, M. Chuvakova1, B. Slautin1, D. Kolker23, A. Boyko23
1- School of Natural Sciences and Mathematics, Ural Federal University, Ekaterinburg, Russia 2- Institute of Laser Physics SB RAS, 630090 Novosibirsk, Russia 3- Novosibirsk State University, Novosibirsk, Russia E-mail: [email protected]
We present the achievements in fabrication of effective nonlinear frequency converters by creation of the stable domain structure with precise period reproducibility by various methods of the domain engineering in single crystals of lithium niobate, lithium tantalate and potassium titanyl phosphate families. The promising applications of femtosecond laser irradiation for all-optical creation of the periodical domain structure in the crystal bulk are demonstrated [1-3].
The obtained achievements are based on complex study of the domain structure evolution in various uniaxial ferroelectrics with high spatial and temporal resolution. The realized methods of domain engineering are based on application of the electric field using: (1) periodical stripe electrodes [4], (2) biased tip of scanning probe microscope [5,6], (3) focused electron and ion beams [7], (4) pulse heating by IR laser irradiation [1]. The created precise tailored domain structures allowed to realize the highly effective optical parametric oscillation (OPO) and out-of-cavity second harmonics generation.
The periodical poling has been carried out also in thin single-crystalline ion sliced films of lithium niobate on SiO2 isolation layer (LNOI) by conductive tip of the scanning probe microscope. The stable submicron-scale domain structures with period less than 200 nm have been created [5,6].
The creation of tunable mid-infrared pulsed optical parametric amplifier (OPA) based on periodically poled LN with fan-out domain structure pumped by 1.053 mm laser and tunable continuous-wave injection seeding have been demonstrated [8]. It was shown that injection seeding leads to four times decrease of the linewidth of output signal wave. The fan-out periodical domain structures allowed to obtain wide OPA tuning range from 2.5 to 4.5 mm [9]. The periodical domain structure in 1 -mm-thick KTP single crystals with period 37.97 mm allowed to obtain OPO generation at wavelength 2.4 mm with average power 25 mW for 1300 mW pump.
The creation of the periodical domain structure both at the surface and in the bulk was demonstrated in the plates of single-domain MgO doped lithium niobate as a result of irradiation by femtosecond laser emitting pulses in TEM00 mode at the 1030 nm wavelength with energies from 0.7 to 6.7 ^J in filamentation regime with duration 240 fs and repetition frequency 100 kHz [10].
The research was made possible by Russian Science Foundation (Grant No. 19-12-00210).
[1] B.I. Lisjikh, M.S. Kosobokov, A.V. Efimov, D.K. Kuznetsov, and V.Ya. Shur, Thermally assisted growth of bulk domains created by femtosecond laser in magnesium doped lithium niobate, Ferroelectrics, vol.604, pp.47-52 (2023).
[2] V. Shur, M. Kosobokov, A. Makaev, and D. Kuznetsov, Light-induced ordering of nanodomains in lithium tantalate as a result of multiple scanning by IR laser irradiation, J. Appl. Phys., vol.133, p.014105 (2023).
[3] V.Ya. Shur, M.S. Kosobokov, A.V. Makaev, D.K. Kuznetsov, M.S. Nebogatikov, D.S. Chezganov, and E.A. Mingaliev, Dimensionality increase of ferroelectric domain shape by pulse laser irradiation, Acta Materialia, vol.219, p.117270 (2021).
[4] V.Ya. Shur, A.R. Akhmatkhanov, and I.S. Baturin, Micro- and nano-domain engineering in lithium niobate, Appl. Phys. Rev., vol.2, p.040604 (2015).
[5] B.N. Slautin, A.P. Turygin, E.D. Greshnyakov, A.R. Akhmatkhanov, H. Zhu, and V.Ya. Shur, Domain structure formation by local switching in the ion sliced lithium niobate thin films, Appl. Phys. Lett., vol. 116, p.152904 (2020).
[6] B.N. Slautin, H. Zhu, and V.Ya. Shur, Submicron periodical poling by local switching in the ion sliced lithium niobate thin films with dielectric layer, Ceramics International, vol.47, pp.32900-32904 (2021).
[7] D.S. Chezganov, E.O. Vlasov, E.A. Pashnina, M.A. Chuvakova, A.A. Esin, E.D. Greshnyakov, and V.Ya. Shur, Domain structure formation by electron beam irradiation in lithium niobate crystals at elevated temperatures, Appl. Phys. Lett., vol.115, p.092903 (2019).
[8] E. Erushin, B. Nyushkov, A. Ivanenko, A. Akhmathanov, V. Shur, A. Boyko, N. Kostyukova, and D. Kolker, Tunable injection-seeded fan-out-PPLN optical parametric oscillator for high-sensitivity gas detection, Laser Phys. Lett. vol.18, p.116201 (2021).
[9] O.L. Antipov, D.B. Kolker, A.A. Dobrynin, Yu.A. Getmanovskiy, V.V. Sharkov, M.A. Chuvakova, A.R. Akhmathanov, V.Ya. Shur, I.A. Shestakova, S.V. Larin, Mid-infrared optical parametric oscillation and second harmonic generation of repetitively-pulsed radiation of a fiberlaser pumped Tm3+:YAP laser in a fan-out periodically poled MgO:LiNbO3 crystal, Quantum Electronics, vol.52, pp.254-261 (2022).
[10] S. Kudryashov, A. Rupasov, M. Kosobokov, A. Akhmatkhanov, G. Krasin, P. Danilov, B. Lisjikh, A. Turygin, E. Greshnyakov, M. Kovalev, A. Efimov, and V. Shur, Ferroelectric nanodomain engineering in bulk lithium niobate crystals in ultrashort-pulse laser nanopatterning regime, Nano-materials, vol.12, p.4147 (2022).
