Nearly Single-Cycle Terahertz Pulse Generation in Aperiodically Poled Lithium Niobate
<p>The schematic illustration of APPLN crystal, where white and dark colors are used for regions with opposite sign of nonlinear coefficient <span class="html-italic">d</span><sub>33</sub>.</p> "> Figure 2
<p>The temporal forms of THz pulses generated in the APPLN crystal by original laser pulse (red line) and its replicas delayed at Δ<span class="html-italic">t</span><sub>2</sub> (blue curve) and Δ<span class="html-italic">t</span><sub>3</sub> (green curve). The dashed line indicates nearly perfect overlapping of the fields radiated from the first three positive domains, when they are excited by laser pulses with the delays of Δ<span class="html-italic">t</span><sub>1</sub> = 0, Δ<span class="html-italic">t</span><sub>2</sub>, and Δ<span class="html-italic">t</span><sub>3</sub>.</p> "> Figure 3
<p>(<b>a</b>) Temporal forms of THz pulses generated in APPLN structures having different <span class="html-italic">δ</span> = 1.6 μm (red curve), <span class="html-italic">δ</span> = 0.8 μm (blue curve) and <span class="html-italic">δ</span> = 0.5 (green curve), respectively. The temporal forms are offset on the ordinate axis for clarity. In each case the crystal is pumped by the sequence of the laser pulses having delays Δ<span class="html-italic">τ<sub>m</sub></span> with <span class="html-italic">m</span> = 1, 2, 3,…16. (<b>b</b>) Format of the pump pulses used for cases <span class="html-italic">δ</span> = 1.6 (red line) and <span class="html-italic">δ</span> = 0.8 (blue line), respectively.</p> "> Figure 4
<p>The spectra of THz generation in chirped APPLN crystal for the cases of <span class="html-italic">δ</span> = 1.6 µm (red curve) and <span class="html-italic">δ</span> = 0.8 µm (blue curve).</p> ">
Abstract
:1. Introduction
2. Theoretical Model
3. Results and Discussions
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
- Hafez, H.A.; Chai, X.; Ibrahim, A.; Mondal, S.; Ferachou, D.; Ropagnol, X.; Ozaki, T. Intense terahertz radiation and their applications. J. Opt. 2016, 18, 093004. [Google Scholar] [CrossRef] [Green Version]
- Zhang, X.C.; Shkurinov, A.; Zhang, Y. Extreme terahertz science. Nat. Photonics 2017, 11, 16–18. [Google Scholar] [CrossRef]
- Fülöp, J.A.; Ollmann, Z.; Lombosi, C.; Skrobol, C.; Klingebiel, S.; Pálfalvi, L.; Krausz, F.; Karsch, S.; Hebling, J. Efficient generation of THz pulses with 0.4 mJ energy. Opt. Express 2014, 22, 20155–20163. [Google Scholar] [CrossRef] [PubMed]
- Huang, S.-W.; Granados, E.; Huang, W.R.; Hong, K.-H.; Zapata, L.E.; Kärtner, F.X. High conversion efficiency, high energy terahertz pulses by optical rectification in cryogenically cooled lithium niobate. Opt. Lett. 2013, 38, 796–798. [Google Scholar] [CrossRef] [PubMed]
- Ravi, K.; Huang, W.R.; Carbajo, S.; Wu, X.; Kärtner, F.X. Limitations to THz generation by optical rectification using tilted pulse fronts. Opt. Express 2014, 22, 20239–20251. [Google Scholar] [CrossRef] [PubMed]
- Zhang, B.; Li, S.; Chai, S.; Wu, X.; Ma, J.; Chen, L.; Li, Y. Nonlinear distortion and spatial dispersion of intense terahertz generation in lithium niobate via the tilted pulse front technique. Photonics Res. 2018, 6, 959–964. [Google Scholar] [CrossRef]
- Yoshida, F.; Nagashima, K.; Tsubouchi, M.; Maruyama, M.; Ochi, Y. THz pulse generation using a contact grating device composed of TiO2/SiO2 thin films on LiNbO3 crystal. J. Appl. Phys. 2016, 120, 183103. [Google Scholar] [CrossRef]
- Ofori-Okai, B.; Sivarajah, P.; Huang, W.; Nelson, K. THz generation using a reflective stair-step echelon. Opt. Express 2016, 24, 5057–5068. [Google Scholar] [CrossRef] [PubMed]
- Avetisyan, Y.; Makaryan, A.; Tadevosyan, V.; Tonouchi, M. Design of a multistep phase mask for high-energy terahertz pulse generation by optical rectification. J. Infrared Millim. Terahz Waves 2017, 38, 1439–1447. [Google Scholar] [CrossRef]
- Palfalvi, L.; Toth, G.; Tokodi, L.; Marton, Z.; Fulop, J.; Almasi, G.; Hebling, J. Numerical investigation of a scalable setup for efficient terahertz generation using a segmented tilted-pulse-front excitation. Opt. Express 2017, 25, 29560–29573. [Google Scholar] [CrossRef]
- Polonyi, G.; Mechler, M.; Hebling, J.; Fulop, J. Prospects of semiconductor terahertz pulse sources. IEEE J. Sel. Top. Quantum Electron. 2017, 23, 8501208. [Google Scholar] [CrossRef]
- Bakunov, M.I.; Bodrov, S.B.; Mashkovich, E.A. Terahertz generation with tilted-front laser pulses: Dynamic theory for low-absorbing crystals. J. Opt. Soc. Am. B 2011, 28, 1724–1734. [Google Scholar] [CrossRef]
- Jolly, S.; Ahr, F.; Matlis, N.; Leroux, V.; Eichner, T.; Ravi, K.; Ishizuki, H.; Taira, T.; Kartner, F.; Maier, A. Towards millijoule narrowband terahertz generation using chirp-and-delay in periodically poled lithium niobite. In Proceedings of the High-Brightness Sources and Light-Driven Interactions, Strasbourg, France, 26–28 March 2018. [Google Scholar]
- Ahr, F.; Jolly, S.; Matlis, N.; Carbajo, S.; Kroh, T.; Ravi, K.; Schimpf, D.; Schulte, J.; Ishizuki, H.; Taira, T.; et al. Narrowband terahertz generation with chirped-and-delayed laser pulses in periodically poled lithium niobate. Opt. Lett. 2017, 42, 2118–2121. [Google Scholar] [CrossRef] [PubMed]
- Vodopyanov, K.L. Optical THz-wave generation with periodically-inverted GaAs. Laser Photon. Rev. 2008, 2, 11–25. [Google Scholar] [CrossRef]
- Lee, Y.S.; Norris, T.B. Terahertz pulse shaping and optimal waveform generation in poled ferroelectric crystals. J. Opt. Soc. Am. B 2002, 19, 2791–2798. [Google Scholar] [CrossRef]
- Kitaeva, G.K. Frequency conversion in aperiodic quasi-phase-matched structures. Phys. Rev. A 2007, 76, 043841. [Google Scholar] [CrossRef]
- L’huillier, J.; Torosyan, G.; Theuer, M.; Rau, C.; Avetisyan, Y.; Beigang, R. Generation of THz radiation using bulk, periodically and aperiodically poled lithium niobate—Part 2: Experiment. Appl. Phys. B 2007, 86, 197–208. [Google Scholar] [CrossRef]
- Yahaghi, A.; Ravi, K.; Fallahi, A.; Kärtner, F. Designing chirped aperiodically poled structures for high-energy single-cycle terahertz generation. J. Opt. Soc. Am. B 2017, 34, 590–600. [Google Scholar] [CrossRef]
- Ravi, K.; Kartner, F. Generating compressed broadband terahertz pulses using aperiodically poled electro-optic crystals. arXiv, 2018; arXiv:1710.07843v.2. [Google Scholar]
- Dromey, B.; Zepf, M.; Landreman, M.; O’Keeffe, K.; Robinson, T.; Hooker, S.M. Generation of a train of ultrashort pulses from a compact birefringent crystal array. Appl. Opt. 2007, 46, 5142–5146. [Google Scholar] [CrossRef]
- Salem, R.; Foster, M.A.; Gaeta, A.L. Application of space-time duality to ultrahigh-speed optical signal processing. Adv. Opt. Photonic 2013, 5, 274–317. [Google Scholar] [CrossRef]
- L’huillier, J.; Torosyan, G.; Theuer, M.; Avetisyan, Y.; Beigang, R. Generation of THz radiation using bulk, periodically and aperiodically poled lithium niobate—Part 1: Theory. Appl. Phys. B 2007, 86, 185–196. [Google Scholar] [CrossRef]
- Avetisyan, Y.; Zhang, C.; Tonouchi, M. Analysis of linewidth tunable terahertz wave generation in periodically poled lithium niobite. J. Infrared Millim. Terahz Waves 2012, 33, 989–998. [Google Scholar] [CrossRef]
- Schneider, A.; Neis, M.; Stillhart, M.; Ruiz, B.; Khan, R.; Günter, P. Generation of terahertz pulses through optical rectification in organic DAST crystals: Theory and experiment. J. Opt. Soc. Am. B 2006, 23, 1822–1835. [Google Scholar] [CrossRef]
- Stutzman, W.L.; Thiele, G.A. Antenna Theory and Design; John Wiley & Sons: Danvers, MA, USA, 2012. [Google Scholar]
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Share and Cite
Avetisyan, Y.; Tonouchi, M. Nearly Single-Cycle Terahertz Pulse Generation in Aperiodically Poled Lithium Niobate. Photonics 2019, 6, 9. https://doi.org/10.3390/photonics6010009
Avetisyan Y, Tonouchi M. Nearly Single-Cycle Terahertz Pulse Generation in Aperiodically Poled Lithium Niobate. Photonics. 2019; 6(1):9. https://doi.org/10.3390/photonics6010009
Chicago/Turabian StyleAvetisyan, Yuri, and Masayoshi Tonouchi. 2019. "Nearly Single-Cycle Terahertz Pulse Generation in Aperiodically Poled Lithium Niobate" Photonics 6, no. 1: 9. https://doi.org/10.3390/photonics6010009