Abstract

We present a theoretical research concerning terahertz (THz) wave generation with KTiOPO4 (KTP) by collinear phase matching (CPM) stimulated polariton scattering (SPS). Both CPM and corresponding nonzero nonlinear coefficients can be simultaneously realized with s→f+f in yz plane, s→f+s with θ < Ω in xz plane and s→f+f with θ > Ω in xz plane. The effective nonlinear coefficients including electronic nonlinearities and ionic nonlinearities are calculated. Based on the parameter values of refractive indices, absorption coefficients and effective nonlinear coefficients, we simulate THz wave intensities generated with CPM SPS by solving coupled wave equations and give the relationship among the maximum THz wave intensity, optimal crystal length and the angle θ. The calculation results demonstrate that CPM SPS with KTP can generate THz waves with high intensities and quantum conversion efficiencies.

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  1. K. Kawase, J. Shikata, and H. ItoTerahertz wave parametric sourceJ. Phys. D: Appl. Phys.200235R1R14
  2. T. A. Ortega, H. M. Pask, D. J. Spence, and A. J. LeeTHz polariton laser using an intracavity Mg:LiNbO3 crystal with protective Teflon coatingOpt. Express20172539913999
  3. H. Jang, G. Strömqvist, V. Pasiskevicius, and C. CanaliasControl of forward stimulated polariton scattering in periodically-poled KTP crystalsOpt. Express2013212727727283
  4. T. A. Ortega, H. M. Pask, D. J. Spence, and A. J. LeeTunable 3-6 THz polariton laser exceeding 0.1 mW average output power based on crystalline RbTiOPO4IEEE J. Sel. Top. Quantum Electron.20182416
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  8. J. Kiessling, F. Fuchs, K. Buse, and I. BreunigPump-enhanced optical parametric oscillator generating continuous wave tunable terahertz radiationOpt. Lett.20113643744376
  9. D. H. Wu and T. IkariEnhancement of the output power of a terahertz parametric oscillator with recycled pump beamAppl. Phys. Lett.200995141105
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  13. G. C. Bhar, A. M. Rudra, A. K. Chaudhary, T. Sasaki, and Y. MoriHighly efficient difference-frequency generation in KTPAppl. Phys. B: Laser Opt.199663141144
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  15. M. H. Wu, Y. C. Chiu, T. D. Wang, G. Zhao, A. Zukauskas, F. Laurell, and Y. C. HuangTerahertz parametric generation and amplification from potassium titanyl phosphate in comparison with lithium niobate and lithium tantalateOpt. Express2016242596425973
  16. W. Wang, Z. Cong, X. Chen, X. Zhang, Z. Qin, G. Tang, N. Li, C. Wang, and Q. LuTerahertz parametric oscillator based on KTiOPO4 crystalOpt. Lett.20143937063709
  17. T. A. Ortega, H. M. Pask, D. J. Spence, and A. J. LeeCompetition effects between stimulated Raman and polariton scattering in intracavity KTiOPO4 crystalProc. OSA Technical DigestOptical Society of America2015(online)paper ATu3A.3
  18. G. Kugel, F. Brehat, B. Wyncke, M. Fontana, G. Marnier, C. C. Nedelec, and J. ManginThe vibrational spectrum of a KTiOPO4 single crystal studied by Raman and infrared reflectivity spectroscopJ. Phys. C.19882155655583
  19. J. G. Huang, Z. M. Huang, N. A. Nikolaev, A. A. Mamrashev, V. D. Antsygin, O. I. Potaturkin, A. B. Meshalkin, A. B. Kaplun, G. V. Lanskii, Y. M. Andreev, D. M. Ezhov, and V. A. SvetlichnyiPhase matching in RT KTP crystal for down-conversion into the THz rangeLaser Phys. Lett.201815075401
  20. C. Alberdi, J. M. Diñeiro, B. Hernández, and C. SáenzGeneral expressions for the refractive indices of absorbing biaxial media as a function of the angle of incidenceJ. Opt. Soc. Am. A201532228237
  21. A. Mamrashev, N. Nikolaev, V. Antsygin, Y. Andreev, G. Lanskii, and A. MeshalkinOptical properties of KTP crystals and their potential for terahertz generationCrystals20188310
  22. V. D. Antsygin, A. B. Kaplun, A. A. Mamsharov, N. A. Nikolaev, and O. I. PotaturkinTerahertz optical properties of potassium titanyl phosphate crystalsOpt. Express2014222543625443

Other (22)

K. Kawase, J. Shikata, and H. ItoTerahertz wave parametric sourceJ. Phys. D: Appl. Phys.200235R1R14

T. A. Ortega, H. M. Pask, D. J. Spence, and A. J. LeeTHz polariton laser using an intracavity Mg:LiNbO3 crystal with protective Teflon coatingOpt. Express20172539913999

H. Jang, G. Strömqvist, V. Pasiskevicius, and C. CanaliasControl of forward stimulated polariton scattering in periodically-poled KTP crystalsOpt. Express2013212727727283

T. A. Ortega, H. M. Pask, D. J. Spence, and A. J. LeeTunable 3-6 THz polariton laser exceeding 0.1 mW average output power based on crystalline RbTiOPO4IEEE J. Sel. Top. Quantum Electron.20182416

U. T. Schwarz and M. MaierDamping mechanisms of phonon polaritons, exploited by stimulated Raman gain measurementsPhys. Rev. B.199858766775

S. S. SussmanTunable light scattering from transverse optical modes in lithium niobateMicrowave Laboratory, Stanford UniversityStanford, CA, USA1971Report No. su-mlr-1851 (1970)

T. Ikari, X. Zhang, H. Minamide, and H. ItoTHz-wave parametric oscillator with a surface-emitted configurationOpt. Express20061416041610

J. Kiessling, F. Fuchs, K. Buse, and I. BreunigPump-enhanced optical parametric oscillator generating continuous wave tunable terahertz radiationOpt. Lett.20113643744376

D. H. Wu and T. IkariEnhancement of the output power of a terahertz parametric oscillator with recycled pump beamAppl. Phys. Lett.200995141105

D. N. NikogosyanNonlinear Optical Crystals: a Complete SurveySpringerNew York, USA2005

F. C. Zumsteg, J. D. Bierlein, and T. E. GierKxRb1-xTiOPO4: a new nonlinear optical materialJ. Appl. Phys.19764749804985

H. Y. Zhu, G. Zhang, C. H. Huang, Y. Wei, L. X. Huang, and Z. Q. ChenMulti-watt power blue light generation by intracavity sum-frequency-mixing in KTiOPO4 crystalOpt. Express20081629892994

G. C. Bhar, A. M. Rudra, A. K. Chaudhary, T. Sasaki, and Y. MoriHighly efficient difference-frequency generation in KTPAppl. Phys. B: Laser Opt.199663141144

F. G. Colville, M. H. Dunn, and M. EbrahimzadehContinuous-wave, singly resonant, intracavity parametric oscillatorOpt. Lett.1997227577

M. H. Wu, Y. C. Chiu, T. D. Wang, G. Zhao, A. Zukauskas, F. Laurell, and Y. C. HuangTerahertz parametric generation and amplification from potassium titanyl phosphate in comparison with lithium niobate and lithium tantalateOpt. Express2016242596425973

W. Wang, Z. Cong, X. Chen, X. Zhang, Z. Qin, G. Tang, N. Li, C. Wang, and Q. LuTerahertz parametric oscillator based on KTiOPO4 crystalOpt. Lett.20143937063709

T. A. Ortega, H. M. Pask, D. J. Spence, and A. J. LeeCompetition effects between stimulated Raman and polariton scattering in intracavity KTiOPO4 crystalProc. OSA Technical DigestOptical Society of America2015(online)paper ATu3A.3

G. Kugel, F. Brehat, B. Wyncke, M. Fontana, G. Marnier, C. C. Nedelec, and J. ManginThe vibrational spectrum of a KTiOPO4 single crystal studied by Raman and infrared reflectivity spectroscopJ. Phys. C.19882155655583

J. G. Huang, Z. M. Huang, N. A. Nikolaev, A. A. Mamrashev, V. D. Antsygin, O. I. Potaturkin, A. B. Meshalkin, A. B. Kaplun, G. V. Lanskii, Y. M. Andreev, D. M. Ezhov, and V. A. SvetlichnyiPhase matching in RT KTP crystal for down-conversion into the THz rangeLaser Phys. Lett.201815075401

C. Alberdi, J. M. Diñeiro, B. Hernández, and C. SáenzGeneral expressions for the refractive indices of absorbing biaxial media as a function of the angle of incidenceJ. Opt. Soc. Am. A201532228237

A. Mamrashev, N. Nikolaev, V. Antsygin, Y. Andreev, G. Lanskii, and A. MeshalkinOptical properties of KTP crystals and their potential for terahertz generationCrystals20188310

V. D. Antsygin, A. B. Kaplun, A. A. Mamsharov, N. A. Nikolaev, and O. I. PotaturkinTerahertz optical properties of potassium titanyl phosphate crystalsOpt. Express2014222543625443

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