Enhancement of THz generation in LiNbO<sub>3</sub> waveguides via multi-bounce velocity matching

Blake S. Dastrup; Eric R. Sung; Frank Wulf; Clara Saraceno; Keith A. Nelson

doi:10.1038/s41377-022-01035-9

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Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching

Original Articles

- Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching
- Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching
- LSA 2022年11卷第12期页码：2994-3001
- Affiliations：
  
  1.Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
  2.Faculty of Electrical Engineering and Information Technology, Ruhr University Bochum, Bochum, 44801, Germany
- Author bio：
  
  Keith A. Nelson (kanelson@mit.edu)
- Funds：
- DOI：10.1038/s41377-022-01035-9
  中图分类号：
- 纸质出版日期：2022-12-31，
  
  网络出版日期：2022-11-25，
  
  收稿日期：2022-05-29，
  
  修回日期：2022-10-24，
  
  录用日期：2022-11-08
- Accepted：
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Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching[J]. LSA, 2022,11(12):2994-3001.

Dastrup, B. S. et al. Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching. Light: Science & Applications, 11, 2994-3001 (2022).
Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching[J]. LSA, 2022,11(12):2994-3001. DOI： 10.1038/s41377-022-01035-9.

Dastrup, B. S. et al. Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching. Light: Science & Applications, 11, 2994-3001 (2022). DOI： 10.1038/s41377-022-01035-9.

摘要

Abstract

To realize the full promise of terahertz polaritonics (waveguide-based terahertz field generation

interaction

and readout) as a viable spectroscopy platform

much stronger terahertz fields are needed to enable nonlinear and even robust linear terahertz measurements. We use a novel geometric approach in which the optical pump is totally internally reflected to increase the distance over which optical rectification occurs. Velocity matching is achieved by tuning the angle of internal reflection. By doing this

we are able to enhance terahertz spectral amplitude by over 10x compared to conventional single-pass terahertz generation. An analysis of the depletion mechanisms reveals that 3-photon absorption and divergence of the pump beam are the primary limiters of further enhancement. This level of enhancement is promising for enabling routine spectroscopic measurements in an integrated fashion and is made more encouraging by the prospect of further enhancement by using longer pump wavelengths.

关键词

Keywords

references

K. L. Yeh , 等 . Generation of 10μJ ultrashort terahertz pulses by optical rectification . Appl. Phys. Lett. , 2007 . 90 171121 DOI:10.1063/1.2734374http://doi.org/10.1063/1.2734374 .

J. Hebling , 等 . Velocity matching by pulse front tilting for large-area THz-pulse generation . Opt. Express , 2002 . 10 1161 -1166 . DOI:10.1364/OE.10.001161http://doi.org/10.1364/OE.10.001161 .

D. H. Auston , 等 . Cherenkov radiation from femtosecond optical pulses in electro-optic media . Phys. Rev. Lett. , 1984 . 53 1555 -1558 . DOI:10.1103/PhysRevLett.53.1555http://doi.org/10.1103/PhysRevLett.53.1555 .

J. Hebling , 等 . High-power THz generation, THz nonlinear optics, and THz nonlinear spectroscopy . IEEE J. Sel. Top. Quantum Electron. , 2008 . 14 345 -353 . DOI:10.1109/JSTQE.2007.914602http://doi.org/10.1109/JSTQE.2007.914602 .

H. Y. Hwang , 等 . A review of non-linear terahertz spectroscopy with ultrashort tabletop-laser pulses . J. Mod. Opt. , 2015 . 62 1447 -1479 . DOI:10.1080/09500340.2014.918200http://doi.org/10.1080/09500340.2014.918200 .

J. Lu , 等 . Two-dimensional spectroscopy at terahertz frequencies . Top. Curr. Chem. , 2018 . 376 6 DOI:10.1007/s41061-018-0185-4http://doi.org/10.1007/s41061-018-0185-4 .

S. Baierl , 等 . Nonlinear spin control by terahertz-driven anisotropy fields . Nat. Photonics , 2016 . 10 715 -718 . DOI:10.1038/nphoton.2016.181http://doi.org/10.1038/nphoton.2016.181 .

Elsaesser, T., Reimann, K. & Woerner, M. Concepts and Applications of Nonlinear Terahertz Spectroscopy (San Rafael: Morgan & Claypool Publishers, 2019).

F. X. Kärtner . Terahertz accelerator based electron and x-ray sources . TST , 2020 . 13 22 -31 . DOI:10.1051/tst/2020131022http://doi.org/10.1051/tst/2020131022 .

M. K. Liu , 等 . Terahertz-field-induced insulator-to-metal transition in vanadium dioxide metamaterial . Nature , 2012 . 487 345 -348 . DOI:10.1038/nature11231http://doi.org/10.1038/nature11231 .

X. Li , 等 . Terahertz field-induced ferroelectricity in quantum paraelectric SrTiO3 . Science , 2019 . 364 1079 -1082 . DOI:10.1126/science.aaw4913http://doi.org/10.1126/science.aaw4913 .

S. Schlauderer , 等 . Temporal and spectral fingerprints of ultrafast all-coherent spin switching . Nature , 2019 . 569 383 -387 . DOI:10.1038/s41586-019-1174-7http://doi.org/10.1038/s41586-019-1174-7 .

Shi, J. J. et al. Terahertz-driven irreversible topological phase transition in two-dimensional MoTe2. Preprint at https://arxiv.org/abs/1910.13609v1https://arxiv.org/abs/1910.13609v1 (2019).

S. W. Huang , 等 . High conversion efficiency, high energy terahertz pulses by optical rectification in cryogenically cooled lithium niobate . Opt. Lett. , 2013 . 38 796 -798 . DOI:10.1364/OL.38.000796http://doi.org/10.1364/OL.38.000796 .

W. R. Huang , 等 . Highly efficient terahertz pulse generation by optical rectification in stoichiometric and cryo-cooled congruent lithium niobate . J. Mod. Opt. , 2015 . 62 1486 -1493 . DOI:10.1080/09500340.2013.868547http://doi.org/10.1080/09500340.2013.868547 .

J. A. Fülöp , 等 . Efficient generation of THz pulses with 0.4 mJ energy . Opt. Express , 2014 . 22 20155 -20163. .

K. Ravi , 等 . Theory of terahertz generation by optical rectification using tilted-pulse-fronts . Opt. Express , 2015 . 23 5253 -5276 . DOI:10.1364/OE.23.005253http://doi.org/10.1364/OE.23.005253 .

K. Ravi , 等 . Limitations to THz generation by optical rectification using tilted pulse fronts . Opt. Express , 2014 . 22 20239 -20251 . DOI:10.1364/OE.22.020239http://doi.org/10.1364/OE.22.020239 .

B. K. Ofori-Okai , 等 . THz generation using a reflective stair-step echelon . Opt. Express , 2016 . 24 5057 -5068 . DOI:10.1364/OE.24.005057http://doi.org/10.1364/OE.24.005057 .

L. Pálfalvi , 等 . Novel setups for extremely high power single-cycle terahertz pulse generation by optical rectification . Appl. Phys. Lett. , 2008 . 92 171107 DOI:10.1063/1.2907494http://doi.org/10.1063/1.2907494 .

M. Tsubouchi , 等 . Contact grating device with Fabry-Perot resonator for effective terahertz light generation . Opt. Lett. , 2014 . 39 5439 -5442 . DOI:10.1364/OL.39.005439http://doi.org/10.1364/OL.39.005439 .

T. Feurer , 等 . Terahertz polaritonics . Annu. Rev. Mater. Res. , 2007 . 37 317 -350 . DOI:10.1146/annurev.matsci.37.052506.084327http://doi.org/10.1146/annurev.matsci.37.052506.084327 .

Q. Wu , 等 . Quantitative phase contrast imaging of THz electric fields in a dielectric waveguide . Opt. Express , 2009 . 17 9219 -9225 . DOI:10.1364/OE.17.009219http://doi.org/10.1364/OE.17.009219 .

T. Feurer , J. C. Vaughan , K. A. Nelson . Spatiotemporal coherent control of lattice vibrational waves . Science , 2003 . 299 374 -377 . DOI:10.1126/science.1078726http://doi.org/10.1126/science.1078726 .

T. Feurer , 等 . Typesetting of terahertz waveforms . Opt. Lett. , 2004 . 29 1802 -1804 . DOI:10.1364/OL.29.001802http://doi.org/10.1364/OL.29.001802 .

B. K. Ofori-Okai , 等 . Direct experimental visualization of waves and band structure in 2D photonic crystal slabs . N. J. Phys. , 2014 . 16 053003 DOI:10.1088/1367-2630/16/5/053003http://doi.org/10.1088/1367-2630/16/5/053003 .

P. Sivarajah , 等 . THz-frequency magnon-phonon-polaritons in the collective strong-coupling regime . J. Appl. Phys. , 2019 . 125 213103 DOI:10.1063/1.5083849http://doi.org/10.1063/1.5083849 .

M. C. Hoffmann , 等 . Efficient terahertz generation by optical rectification at 1035 nm . Opt. Express , 2007 . 15 11706 -11713 . DOI:10.1364/OE.15.011706http://doi.org/10.1364/OE.15.011706 .

Z. Chen , 等 . Generation of high power tunable multicycle teraherz pulses . Appl. Phys. Lett. , 2011 . 99 071102 DOI:10.1063/1.3624919http://doi.org/10.1063/1.3624919 .

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Enhancement of THz generation in LiNbO3 waveguides via multi-bounce velocity matching

Enhancement of THz generation in LiNbO3 waveguides via multi-bounce velocity matching

DOI：10.1038/s41377-022-01035-9

摘要

Abstract

关键词

Keywords

references

Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching

Enhancement of THz generation in LiNbO₃ waveguides via multi-bounce velocity matching