Browse > Article
http://dx.doi.org/10.3807/JOSK.2014.18.1.060

Diffraction-Limited High-Power Single-Cycle Terahertz Pulse Generation in Prism-Cut LiNbO3 for Precise Terahertz Applications  

Baek, In Hyung (Department of Physics and Division of Energy Systems Research, Ajou University)
Kang, Bong Joo (Department of Physics and Division of Energy Systems Research, Ajou University)
Jeong, Young Uk (Center for Quantum-Beam based Radiation Research, Korea Atomic Energy Research Institute)
Rotermund, Fabian (Department of Physics and Division of Energy Systems Research, Ajou University)
Publication Information
Journal of the Optical Society of Korea / v.18, no.1, 2014 , pp. 60-64 More about this Journal
Abstract
We report the generation of 3.3-mW single-cycle terahertz (THz) pulses at 1-kHz repetition rate via optical rectification in MgO-doped prism-cut stoichiometric LiNbO3. Efficient pulse-front tilting of 800-nm pulses was realized by an optimized single-lens focusing scheme for radially-symmetric propagation of THz beams. In this geometry, nearly-diffraction-limited THz Gaussian beams with electric field strength as high as 350 kV/cm were generated. The pump-to-THz energy conversion efficiency of $1.36{\times}10^{-3}$ and the extremely high signal-to-noise ratio of ~1:15000 achieved are among the best results for 1-kHz single-cycle terahertz pulse generation ever demonstrated in room temperature operation.
Keywords
Terahertz wave generation; Lithium niobate; Optical rectification;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Y. Ueno and K. Ajito, "Analytical terahertz spectroscopy," Anal. Sci. 24, 185-192 (2008).   DOI   ScienceOn
2 E. Jung, M. Lim, K. Moon, Y. Do, S. Lee, H. Han, H. J. Choi, K.-S. Cho, and K.-R. Kim, "Terahertz pulse imaging of micro-metastatic lymph nodes in early-stage cervical cancer patients," J. Opt. Soc. Korea 15, 155-160 (2011).   과학기술학회마을   DOI   ScienceOn
3 H.-J. Song and T. Nagatsuma, "Present and future of terahertz communications," IEEE Trans. THz Sci. Technol. 1, 256-263 (2012).
4 M. C. Hoffmann, N. C. Brandt, H. Y. Hwang, K.-L. Yeh, and K. A. Nelson, "Terahertz Kerr effect," Appl. Phys. Lett. 95, 231105 (2009).   DOI   ScienceOn
5 F. H. Su, F. Blanchard, G. Sharma, L. Razzari, A. Ayesheshim, T. L. Cocker, L. V. Titova, T. Ozaki, J.-C. Kieffer, R. Morandotti, M. Reid, and F. A. Hegmann, "Terahertz pulse induced intervalley scattering in photoexcited GaAs," Opt. Express 17, 9620-9629 (2009).   DOI
6 E. Hendry, P. J. Hale, J. Moger, and A. K. Savchenko, "Coherent nonlinear optical response of graphene," Phys. Rev. Lett. 105, 097401 (2010).   DOI   ScienceOn
7 K. Tanaka, H. Hirori, and M. Nagai, "THz nonlinear spectroscopy of solids," IEEE Trans. THz Sci. Technol. 1, 301-312 (2011).   DOI   ScienceOn
8 D. Grischkowsky, S. Keiding, M. van Exter, and Ch. Fattinger, "Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors," J. Opt. Soc. Am. B 7, 2006-2015 (1990).   DOI
9 I. Kostakis, D. Saeedkia, and M. Missous, "Terahertz generation and detection using low temperature grown InGaAs-InAlAs photoconductive antennas at 1.55 ${\mu}m$ pulse excitation," IEEE Trans. THz Sci. Technol. 2, 617-622 (2012).   DOI   ScienceOn
10 D. You, R. R. Jones, P. H. Bucksbaum, and R. Dykaar, "Generation of high-power sub-single-cycle 500-fs electromagnetic pulses," Opt. Lett. 18, 290-292 (1993).   DOI
11 A. Schneider, M. Neis, M. Stillhart, B. Ruiz, R. U. A. Khan, and P. Gunter, "Generation of terahertz pulses through optical rectification in organic DAST crystals: Theory and experiment," J. Opt. Soc. Am. B 23, 1822-1835 (2006).   DOI   ScienceOn
12 J. R. Schwesyg, M. Falk, C. R. Phillips, D. H. Jundt, K. Buse, and M. M. Fejer, "Pyroelectrically induced photorefractive damage in magnesium-doped lithium niobate crystals," J. Opt. Soc. Am. B 28, 1973-1987 (2011).   DOI   ScienceOn
13 L. Xu, X.-C. Zhang, and D. H. Auston, "Terahertz beam generation by femtosecond optical pulses in electro-optic materials," Appl. Phys. Lett. 61, 1784-1786 (1992).   DOI
14 J. A. Fulop, L. Palfalvi, G. Almasi, and J. Hebling, "Design of high-energy terahertz sources based on optical rectification," Opt. Express 18, 12311-12317 (2010).   DOI
15 A. G. Stepanov, L. Bonacina, S. V. Chekalin, and J.-P. Wolf, "Generation of $30{\mu}J$ single-cycle terahertz pulses at 100 Hz repetition rate by optical rectification," Opt. Lett. 33, 2497-2499 (2008).   DOI   ScienceOn
16 J. A. Fulop, L. Palfalvi, S. Klingebiel, G. Almasi, F. Krausz, S. Karsch, and J. Hebling, "Generation of sub-mJ terahertz pulses by optical rectification," Opt. Lett. 37, 557-559 (2012).   DOI
17 H. Hirori, A. Doi, F. Blanchard, and K. Tanaka, "Singlecycle terahertz pulses with amplitudes exceeding 1 MV/cm generated by optical rectification in $LiNbO_3$," Appl. Phys. Lett. 98, 091106 (2011).   DOI   ScienceOn
18 S. B. Bodrov, I. E. Ilyakov, B. V. Shishkin, and A. N. Stepanov, "Efficient terahertz generation by optical rectification in Si-$LiNbO_3$-air-metal sandwich structure with variable air gap," Appl. Phys. Lett. 100, 201114 (2012).   DOI   ScienceOn
19 X.-C. Zhang and J. Xu, Introduction to THz Wave Photonics (Springer, New York, USA, 2010), pp. 28-30.
20 S.-W. Huang, E. Granados, W. R. Huang, K.-H. Hong, L. E. Zapata, and F. X. Kartner, "High conversion efficiency, high energy terahertz pulses by optical rectification in cryogenically cooled lithium niobate," Opt. Lett. 38, 796-798 (2013).   DOI
21 Q. Wu and X.-C. Zhang, "Free-space electro-optics sampling of mid-infrared pulses," Appl. Phys. Lett. 71, 1285-1286 (1997).   DOI   ScienceOn