[1] Kleine-Ostmann T, Nagatsuma T. A review on terahertz communications research[J]. Journal of Infrared, Millimeter, and Terahertz Waves, 32, 143-171(2011).
[2] Pickwell E, Wallace V P. Biomedical applications of terahertz technology[J]. Journal of Physics D: Applied Physics, 39, R301-R310(2006).
[3] Siegel P H. Terahertz technology in biology and medicine[J]. IEEE Transactions on Microwave Theory and Techniques, 52, 2438-2447(2004).
[4] Pawar A Y, Sonawane D D, Erande K B et al. Terahertz technology and its applications[J]. Drug Invention Today, 5, 157-163(2013).
[5] Jepsen P U, Cooke D G, Koch M. Terahertz spectroscopy and imaging-modern techniques and applications[J]. Laser & Photonics Reviews, 5, 124-166(2011).
[6] Mittleman D M. Perspective: terahertz science and technology[J]. Journal of Applied Physics, 122, 230901(2017).
[7] Tonouchi M. Cutting-edge terahertz technology[J]. Nature Photonics, 1, 97-105(2007).
[8] Sirtori C. Bridge for the terahertz gap[J]. Nature, 417, 132-133(2002).
[9] Auston D H, Cheung K P, Smith P R. Picosecond photoconducting hertzian dipoles[J]. Applied Physics Letters, 45, 284-286(1984).
[10] Smith P R, Auston D H, Nuss M C. Subpicosecond photoconducting dipole antennas[J]. IEEE Journal of Quantum Electronics, 24, 255-260(1988).
[11] Auston D H, Cheung K P, Valdmanis J A et al. Cherenkov radiation from femtosecond optical pulses in electro-optic media[J]. Physical Review Letters, 53, 1555-1558(1984).
[12] Hamster H, Sullivan A, Gordon S et al. Subpicosecond, electromagnetic pulses from intense laser-plasma interaction[J]. Physical Review Letters, 71, 2725-2728(1993).
[13] Jin Q, Williams K, Yiwen E et al. Observation of broadband terahertz wave generation from liquid water[J]. Applied Physics Letters, 111, 071103(2017).
[14] Gopal A, Herzer S, Schmidt A et al. Observation of gigawatt-class THz pulses from a compact laser-driven particle accelerator[J]. Physical Review Letters, 111, 074802(2013).
[15] Sell A, Leitenstorfer A, Huber R. Phase-locked generation and field-resolved detection of widely tunable terahertz pulses with amplitudes exceeding 100 MV/cm[J]. Optics Letters, 33, 2767-2769(2008).
[16] Darrow J T, Hu B B, Zhang X C et al. Subpicosecond electromagnetic pulses from large-aperture photoconducting antennas[J]. Optics Letters, 15, 323-325(1990).
[17] You D, Dykaar D R, Jones R R et al. Generation of high-power sub-single-cycle 500-fs electromagnetic pulses[J]. Optics Letters, 18, 290-292(1993).
[18] Ropagnol X, Blanchard F, Ozaki T et al. Intense terahertz generation at low frequencies using an interdigitated ZnSe large aperture photoconductive antenna[J]. Applied Physics Letters, 103, 161108(2013).
[19] Ropagnol X, Khorasaninejad M, Raeiszadeh M et al. Intense THz Pulses with large ponderomotive potential generated from large aperture photoconductive antennas[J]. Optics Express, 24, 11299-11311(2016).
[20] Gao Y H, Yang C E, Chang Y et al. Terahertz-radiation-enhanced broadband terahertz generation from large aperture photoconductive antenna[J]. Applied Physics B, 109, 133-136(2012).
[21] Blanchard F, Razzari L, Bandulet H C et al. Generation of 1.5 µJ single-cycle terahertz pulses by optical rectification from a large aperture ZnTe crystal[J]. Optics Express, 15, 13212-13220(2007).
[22] Yang K H, Richards P L, Shen Y R. Generation of far-infrared radiation by picosecond light pulses in LiNbO3[J]. Applied Physics Letters, 19, 320-323(1971).
[23] Aoki K, Savolainen J, Havenith M. Broadband terahertz pulse generation by optical rectification in GaP crystals[J]. Applied Physics Letters, 110, 201103(2017).
[24] Sinko A, Ozheredov I, Rudneva E et al. Perspective on terahertz applications of molecular crystals[J]. Electronics, 11, 2731(2022).
[25] Yang Z, Jazbinsek M, Ruiz B et al. Molecular engineering of stilbazolium derivatives for second-order nonlinear optics[J]. Chemistry of Materials, 19, 3512-3518(2007).
[26] Mutter L, Brunner F D, Yang Z et al. Linear and nonlinear optical properties of the organic crystal DSTMS[J]. Journal of the Optical Society of America B, 24, 2556-2561(2007).
[27] Hebling J, Almasi G, Kozma I et al. Velocity matching by pulse front tilting for large area THz-pulse generation[J]. Optics Express, 10, 1161-1166(2002).
[28] Stepanov A G, Kuhl J, Kozma I Z et al. Scaling up the energy of THz pulses created by optical rectification[J]. Optics Express, 13, 5762-5768(2005).
[29] Yeh K L, Hoffmann M C, Hebling J et al. Generation of 10 μJ ultrashort terahertz pulses by optical rectification[J]. Applied Physics Letters, 90, 1121-1123(2007).
[30] Stepanov A G, Bonacina L, Chekalin S V et al. Generation of 30 μJ single-cycle terahertz pulses at 100 Hz repetition rate by optical rectification[J]. Optics Letters, 33, 2497-2499(2008).
[31] Stepanov A G, Hebling J, Kuhl J. Efficient generation of subpicosecond terahertz radiation by phase-matched optical rectification using ultrashort laser pulses with tilted pulse fronts[J]. Applied Physics Letters, 83, 3000-3002(2003).
[32] Hebling J, Stepanov A G, Almási G et al. Tunable THz pulse generation by optical rectification of ultrashort laser pulses with tilted pulse fronts[J]. Applied Physics B, 78, 593-599(2004).
[33] Hirori H, Doi A, Blanchard F et al. Single-cycle terahertz pulses with amplitudes exceeding 1 MV/cm generated by optical rectification in LiNbO3[J]. Applied Physics Letters, 98, 091106(2011).
[34] Pálfalvi L, Hebling J, Kuhl J et al. Temperature dependence of the absorption and refraction of Mg-doped congruent and stoichiometric LiNbO3 in the THz range[J]. Journal of Applied Physics, 97, 123505(2005).
[35] Fülöp J A, Pálfalvi L, Almási G et al. Design of high-energy terahertz sources based on optical rectification: erratum[J]. Optics Express, 19, 22950(2011).
[36] Huang S W, Granados E, Huang W R et al. High conversion efficiency, high energy terahertz pulses by optical rectification in cryogenically cooled lithium niobate[J]. Optics Letters, 38, 796-798(2013).
[37] Fülöp J A, Ollmann Z, Lombosi C et al. Efficient generation of THz pulses with 0.4 mJ energy[J]. Optics Express, 22, 20155-20163(2014).
[38] Wu X J, Kong D Y, Hao S B et al. Generation of 13.9-mJ terahertz radiation from lithium niobate materials[J]. Advanced Materials, 35, e2208947(2023).
[39] Jang D, Kang C, Lee S K et al. Scalable terahertz generation by large-area optical rectification at 80 TW laser power[J]. Optics Letters, 44, 5634-5637(2019).
[40] Nazarov M M, Shcheglov P A, Teplyakov V V et al. Broadband terahertz generation by optical rectification of ultrashort multiterawatt laser pulses near the beam breakup threshold[J]. Optics Letters, 46, 5866-5869(2021).
[41] Guiramand L, Nkeck J E, Ropagnol X et al. Near-optimal intense and powerful terahertz source by optical rectification in lithium niobate crystal[J]. Photonics Research, 10, 340-346(2022).
[42] Chen Z, Zhou X B, Werley C A et al. Generation of high power tunable multicycle teraherz pulses[J]. Applied Physics Letters, 99, 071102(2011).
[43] Jolly S W, Matlis N H, Ahr F et al. Spectral phase control of interfering chirped pulses for high-energy narrowband terahertz generation[J]. Nature Communications, 10, 2591(2019).
[44] Jang D, Sung J H, Lee S K et al. Generation of 0.7 mJ multicycle 15 THz radiation by phase-matched optical rectification in lithium niobate[J]. Optics Letters, 45, 3617-3620(2020).
[45] Vicario C, Ruchert C, Hauri C P. High field broadband THz generation in organic materials[J]. Journal of Modern Optics, 62, 1480-1485(2015).
[46] Ruchert C, Vicario C, Hauri C P. Scaling submillimeter single-cycle transients toward megavolts per centimeter field strength via optical rectification in the organic crystal OH1[J]. Optics Letters, 37, 899-901(2012).
[47] Ruchert C, Vicario C, Hauri C P. Spatiotemporal focusing dynamics of intense supercontinuum THz pulses[J]. Physical Review Letters, 110, 123902(2013).
[48] Vicario C, Monoszlai B, Hauri C P. GV/m single-cycle terahertz fields from a laser-driven large-size partitioned organic crystal[J]. Physical Review Letters, 112, 213901(2014).
[49] Vicario C, Ovchinnikov A V, Ashitkov S I et al. Generation of 0.9-mJ THz pulses in DSTMS pumped by a Cr∶Mg2SiO4 laser[J]. Optics Letters, 39, 6632-6635(2014).
[50] Vicario C, Jazbinsek M, Ovchinnikov A V et al. High efficiency THz generation in DSTMS, DAST and OH1 pumped by Cr∶forsterite laser[J]. Optics Express, 23, 4573-4580(2015).
[51] Chefonov O V, Ovchinnikov A V, Agranat M B et al. Terahertz beam spot size measurements by a CCD camera[J]. Optics Letters, 44, 4099-4102(2019).
[52] Shalaby M, Hauri C P. Demonstration of a low-frequency three-dimensional terahertz bullet with extreme brightness[J]. Nature Communications, 6, 5976(2015).
[53] Takemoto Y, Takeya K, Kawayama I et al. Temperature dependence of terahertz wave generation from DAST crystal illuminated by 1.56 μm fiber laser[J]. Terahertz Science and Technology, 4, 42-45(2011).
[54] Vicario C, Monoszlai B, Lombosi C et al. Pump pulse width and temperature effects in lithium niobate for efficient THz generation[J]. Optics Letters, 38, 5373-5376(2013).
[55] Stepanov A G, Ruchert C, Levallois J et al. Generation of broadband THz pulses in organic crystal OH1 at room temperature and 10 K[J]. Optical Materials Express, 4, 870-875(2014).
[56] Wang T H, Cao L F, Zhong D G et al. Growth, electrical and optical studies, and terahertz wave generation of organic NLO crystals: DSTMS[J]. CrystEngComm, 21, 2754-2761(2019).
[57] Wang T H, Xu K, Wang G J et al. Growth, THz properties, and Hirshfeld surface studies of 4-N, N-dimethylamino-4- N-methyl-stilbazolium 2, 4, 6-trimethylbenzenesulfonate single crystal[J]. Journal of Materials Science: Materials in Electronics, 33, 4704-4711(2022).
[58] Li Y, Wu Z A, Zhang X Y et al. Crystal growth and terahertz wave generation of organic NLO crystals: OH1[J]. Journal of Crystal Growth, 402, 53-59(2014).
[59] Junginger F, Sell A, Schubert O et al. Single-cycle multiterahertz transients with peak fields above 10 MV/cm[J]. Optics Letters, 35, 2645-2647(2010).
[60] Bai Y, Cheng C J, Li X L et al. Intense broadband mid-infrared pulses of 280 MV/cm for supercontinuum generation in gaseous medium[J]. Optics Letters, 43, 667-670(2018).
[61] Taniuchi T, Okada S, Nakanishi H. Widely tunable terahertz-wave generation in an organic crystal and its spectroscopic application[J]. Journal of Applied Physics, 95, 5984-5988(2004).
[62] Liu P X, Xu D G, Li Y et al. Widely tunable and monochromatic terahertz difference frequency generation with organic crystal DSTMS[J]. EPL (Europhysics Letters), 106, 60001-60006(2014).
[63] Liu P X, Zhang X Y, Yan C et al. Widely tunable and monochromatic terahertz difference frequency generation with organic crystal 2-(3-(4-hydroxystyryl)-5, 5-dime-thylcyclohex-2-enylidene) malononitrile[J]. Applied Physics Letters, 108, 011104(2016).
[64] Liu B, Bromberger H, Cartella A et al. Generation of narrowband, high-intensity, carrier-envelope phase-stable pulses tunable between 4 and 18 THz[J]. Optics Letters, 42, 129-131(2016).
[65] Cook D J, Hochstrasser R M. Intense terahertz pulses by four-wave rectification in air[J]. Optics Letters, 25, 1210-1212(2000).
[66] Bartel T, Gaal P, Reimann K et al. Generation of single-cycle THz transients with high electric-field amplitudes[J]. Optics Letters, 30, 2805-2807(2005).
[67] Chen Y Q, Yamaguchi M, Wang M F et al. Terahertz pulse generation from noble gases[J]. Applied Physics Letters, 91, 251116(2007).
[68] Rodriguez G, Dakovski G L. Scaling behavior of ultrafast two-color terahertz generation in plasma gas targets: energy and pressure dependence[J]. Optics Express, 18, 15130-15143(2010).
[69] Zhao H, Zhang L L, Huang S X et al. Terahertz wave generation from noble gas plasmas induced by a wavelength-tunable femtosecond laser[J]. IEEE Transactions on Terahertz Science and Technology, 8, 299-304(2018).
[70] Oh T I, Yoo Y J, You Y S et al. Generation of strong terahertz fields exceeding 8 MV/cm at 1 kHz and real-time beam profiling[J]. Applied Physics Letters, 105, 041103(2014).
[71] Kuk D, Yoo Y J, Rosenthal E W et al. Generation of scalable terahertz radiation from cylindrically focused two-color laser pulses in air[J]. Applied Physics Letters, 108, 121106(2016).
[72] Clerici M, Peccianti M, Schmidt B E et al. Wavelength scaling of terahertz generation by gas ionization[J]. Physical Review Letters, 110, 253901(2013).
[73] Fedorov V Y, Tzortzakis S. Optimal wavelength for two-color filamentation-induced terahertz sources[J]. Optics Express, 26, 31150-31159(2018).
[74] Wang W M, Kawata S, Sheng Z M et al. Efficient terahertz emission by mid-infrared laser pulses from gas targets[J]. Optics Letters, 36, 2608-2610(2011).
[75] Koulouklidis A D, Gollner C, Shumakova V et al. Observation of extremely efficient terahertz generation from mid-infrared two-color laser filaments[J]. Nature Communications, 11, 292(2020).
[76] Hale G M, Querry M R. Optical constants of water in the 200-nm to 200-μm wavelength region[J]. Applied Optics, 12, 555-563(1973).
[77] Zhang L L, Wang W M, Wu T et al. Strong terahertz radiation from a liquid-water line[J]. Physical Review Applied, 12, 014005(2019).
[78] Feng S J, Dong L Q, Wu T et al. Terahertz wave emission from water lines[J]. Chinese Optics Letters, 18, 023202(2020).
[79] Dey I, Jana K, Fedorov V Y et al. Highly efficient broadband terahertz generation from ultrashort laser filamentation in liquids[J]. Nature Communications, 8, 1184(2017).
[80] Balakin A V, Coutaz J L, Makarov V A et al. Terahertz wave generation from liquid nitrogen[J]. Photonics Research, 7, 678-686(2019).
[81] Cao Y Q, E Y W, Huang P J et al. Broadband terahertz wave emission from liquid metal[J]. Applied Physics Letters, 117, 041107(2020).
[82] Gopal A, Singh P, Herzer S et al. Characterization of 700 μJ T rays generated during high-power laser solid interaction[J]. Optics Letters, 38, 4705-4707(2013).
[83] Liao G Q, Li Y T. Review of intense terahertz radiation from relativistic laser-produced plasmas[J]. IEEE Transactions on Plasma Science, 47, 3002-3008(2019).
[84] Zeng Y S, Zhou C L, Song L W et al. Guiding and emission of milijoule single-cycle THz pulse from laser-driven wire-like targets[J]. Optics Express, 28, 15258-15267(2020).
[85] Tian Y, Liu J S, Bai Y F et al. Femtosecond-laser-driven wire-guided helical undulator for intense terahertz radiation[J]. Nature Photonics, 11, 242-246(2017).
[86] Kampfrath T, Tanaka K, Nelson K A. Resonant and nonresonant control over matter and light by intense terahertz transients[J]. Nature Photonics, 7, 680-690(2013).
[87] Nicoletti D, Cavalleri A. Nonlinear light–matter interaction at terahertz frequencies[J]. Advances in Optics and Photonics, 8, 401-464(2016).
[88] Ovchinnikov A V, Chefonov O V, Agranat M B et al. Optical second harmonic generation induced by picosecond terahertz pulses in centrosymmetric antiferromagnet NiO[J]. JETP Letters, 104, 441-448(2016).
[89] Ovchinnikov A V, Chefonov O V, Mishina E D et al. Second harmonic generation in the bulk of silicon induced by an electric field of a high power terahertz pulse[J]. Scientific Reports, 9, 9753(2019).
[90] Cornet M, Degert J, Abraham E et al. Terahertz-field-induced second harmonic generation through Pockels effect in zinc telluride crystal[J]. Optics Letters, 39, 5921-5924(2014).
[91] Schubert O, Hohenleutner M, Langer F et al. Sub-cycle control of terahertz high-harmonic generation by dynamical Bloch oscillations[J]. Nature Photonics, 8, 119-123(2014).
[92] Zalden P, Song L W, Wu X J et al. Molecular polarizability anisotropy of liquid water revealed by terahertz-induced transient orientation[J]. Nature Communications, 9, 2142(2018).
[93] Zhao H, Tan Y, Zhang L L et al. Ultrafast hydrogen bond dynamics of liquid water revealed by terahertz-induced transient birefringence[J]. Light: Science & Applications, 9, 136(2020).
[94] Bodrov S, Sergeev Y, Murzanev A et al. Terahertz induced optical birefringence in polar and nonpolar liquids[J]. The Journal of Chemical Physics, 147, 084507(2017).
[95] Hoffmann M C, Brandt N C, Hwang H Y et al. Terahertz Kerr effect[J]. Applied Physics Letters, 95, 231105(2009).
[96] Sajadi M, Wolf M, Kampfrath T. Transient birefringence of liquids induced by terahertz electric-field torque on permanent molecular dipoles[J]. Nature Communications, 8, 14963(2017).
[97] Cornet M, Degert J, Abraham E et al. Terahertz Kerr effect in gallium phosphide crystal[J]. Journal of the Optical Society of America B, 31, 1648-1652(2014).
[98] Sajadi M, Wolf M, Kampfrath T. Terahertz-field-induced optical birefringence in common window and substrate materials[J]. Optics Express, 23, 28985-28992(2015).
[99] Shen Y, Watanabe T, Arena D A et al. Nonlinear cross-phase modulation with intense single-cycle terahertz pulses[J]. Physical Review Letters, 99, 043901(2007).
[100] Vicario C, Shalaby M, Hauri C P. Subcycle extreme nonlinearities in GaP induced by an ultrastrong terahertz field[J]. Physical Review Letters, 118, 083901(2017).
[101] Liu M K, Hwang H Y, Tao H et al. Terahertz-field-induced insulator-to-metal transition in vanadium dioxide metamaterial[J]. Nature, 487, 345-348(2012).
[102] Li X, Qiu T, Zhang J H et al. Terahertz field-induced ferroelectricity in quantum paraelectric SrTiO3[J]. Science, 364, 1079-1082(2019).
[103] Kampfrath T, Sell A, Klatt G et al. Coherent terahertz control of antiferromagnetic spin waves[J]. Nature Photonics, 5, 31-34(2011).
[104] Baierl S, Mentink J H, Hohenleutner M et al. Terahertz-driven nonlinear spin response of antiferromagnetic nickel oxide[J]. Physical Review Letters, 117, 197201(2016).
[105] Balos V, Bierhance G, Wolf M et al. Terahertz-magnetic-field induced ultrafast faraday rotation of molecular liquids[J]. Physical Review Letters, 124, 093201(2020).
[106] Jnawali G, Rao Y, Yan H G et al. Observation of a transient decrease in terahertz conductivity of single-layer graphene induced by ultrafast optical excitation[J]. Nano Letters, 13, 524-530(2013).
[107] Iida R, Satoh T, Shimura T et al. Spectral dependence of photoinduced spin precession in DyFeO3[J]. Physical Review B, 84, 064402(2011).
[108] Zhou R Z, Jin Z M, Li G F et al. Terahertz magnetic field induced coherent spin precession in YFeO3[J]. Applied Physics Letters, 100, 061102(2012).
[109] Li G F, Jin Z M, Xue X et al. Terahertz coherent control of surface plasmon polariton propagation in subwavelength metallic hole arrays[J]. Applied Physics Letters, 100, 191115(2012).
[110] Zhang Z Y, Hu M C, Jia T Y et al. Suppressing the trapping process by interfacial charge extraction in antimony selenide heterojunctions[J]. ACS Energy Letters, 6, 1740-1748(2021).
[111] Zou Y Q, Ma Q S, Zhang Z Y et al. Observation of ultrafast interfacial exciton formation and relaxation in graphene/MoS2 heterostructure[J]. The Journal of Physical Chemistry Letters, 13, 5123-5130(2022).
[112] Quan C J, Xing X A, Jia T Y et al. Hot carrier transfer in PtSe2/graphene enabled by the hot phonon bottleneck[J]. The Journal of Physical Chemistry Letters, 13, 9456-9463(2022).
[113] Xing X A, Zhang Z Y, Quan C J et al. Tunable ultrafast electron transfer in WSe2–graphene heterostructures enabled by atomic stacking order[J]. Nanoscale, 14, 7418-7425(2022).
[114] Jin Z M, Peng Y, Fang Y Q et al. Photoinduced large polaron transport and dynamics in organic-inorganic hybrid lead halide perovskite with terahertz probes[J]. Light: Science & Applications, 11, 209(2022).
[115] Ma Q, Krishna Kumar R, Xu S Y et al. Photocurrent as a multiphysics diagnostic of quantum materials[J]. Nature Reviews Physics, 5, 170-184(2023).
[116] Zhang X C, Hu B B, Darrow J T et al. Generation of femtosecond electromagnetic pulses from semiconductor surfaces[J]. Applied Physics Letters, 56, 1011-1013(1990).
[117] Braun L, Mussler G, Hruban A et al. Ultrafast photocurrents at the surface of the three-dimensional topological insulator Bi2Se3[J]. Nature Communications, 7, 13259(2016).
[118] Fan Z Y, Xu M Z, Huang Y Y et al. Terahertz surface emission from MoSe2 at the monolayer limit[J]. ACS Applied Materials & Interfaces, 12, 48161-48169(2020).
[119] Huang Y Y, Zhu L P, Zhao Q Y et al. Surface optical rectification from layered MoS2 crystal by THz time-domain surface emission spectroscopy[J]. ACS Applied Materials & Interfaces, 9, 4956-4965(2017).
[120] Si K Y, Huang Y Y, Zhao Q Y et al. Terahertz surface emission from layered semiconductor WSe2[J]. Applied Surface Science, 448, 416-423(2018).
[121] Song F C, Zu X Z, Zhang Z Y et al. Ultrafast drift current terahertz emission amplification in the monolayer WSe2/Si heterostructure[J]. The Journal of Physical Chemistry Letters, 13, 11398-11404(2022).
[122] Suo P, Xia W, Zhang W J et al. Terahertz emission on the surface of a van der Waals magnet CrSiTe3[J]. Laser & Photonics Reviews, 14, 2000025(2020).
[123] Tong M Y, Hu Y Z, He W B et al. Ultraefficient terahertz emission mediated by shift-current photovoltaic effect in layered gallium telluride[J]. ACS Nano, 15, 17565-17572(2021).
[124] Guzelturk B, Belisle R A, Smith M D et al. Terahertz emission from hybrid perovskites driven by ultrafast charge separation and strong electron–phonon coupling[J]. Advanced Materials, 30, 1704737(2018).
[125] Yue X Y, Wang C W, Zhang B et al. Real-time observation of the buildup of polaron in α-FAPbI3[J]. Nature Communications, 14, 917(2023).
[126] Luo L, Cheng D, Song B Q et al. A light-induced phononic symmetry switch and giant dissipationless topological photocurrent in ZrTe5[J]. Nature Materials, 20, 329-334(2021).
