Strong-field terahertz optical sideband generation for wavelength conversion in asymmetric double quantum wells

Zhang, J.-Z.; Allsopp, D.
December 2009
Applied Physics Letters;12/7/2009, Vol. 95 Issue 23, p231916
Academic Journal
Terahertz (THz) optical sideband generation in asymmetric double quantum wells in strong THz fields is studied theoretically. Both monotonic THz-power dependence and saturation of the first-order sideband intensity can occur, depending on the near infrared (NIR) and THz photon energies. In both respects the calculated sideband intensity behavior agrees with experimental findings [Appl. Phys. Lett. 75, 2728 (1999); Phys. Rev. B 70, 115312 (2004)]. The nonmonotonic THz-power dependence and saturation of the sideband intensity are due to the excitonic Stark splitting. While the sideband saturation imposes limitations on the wavelength conversion efficiency, the simultaneous broadening of sideband resonances benefits wavelength conversion by increasing the number of NIR frequencies available for wavelength conversion.


Related Articles

  • Terahertz single-photon detectors based on quantum wells. Kajihara, Yusuke; Nakajima, Takashi; Wang, Zhihai; Komiyama, Susumu // Journal of Applied Physics;Apr2013, Vol. 113 Issue 13, p136506 

    Semiconductor charge-sensitive infrared phototransistors (CSIPs) based on quantum wells are described. They are the only detectors that are able to count single photons in the terahertz region at present. In terms of the noise equivalent power (NEP), the detectors show experimental values of 7...

  • Scattering Induced Spin Separation at Zero Bias. Ganichev, S. D.; Bel'kov, V. V.; Tarasenko, S. A.; Danilov, S. N.; Giglberger, S.; Hoffmann, Ch.; Ivchenko, E. L.; Weiss, D.; Gerl, C.; Schuh, D.; Wegscheider, W.; Prettl, W. // AIP Conference Proceedings;2007, Vol. 893 Issue 1, p1255 

    We show that in gyrotropic semiconductor structures spin-dependent asymmetry of electron scattering induces a spin separation which, in contrast to the spin Hall effect, does not require an electric current to flow. The effect is observed in GaAs/AlGaAs quantum well structures at free-carrier...

  • Room temperature spin filtering effect in GaNAs: Role of hydrogen. Puttisong, Y.; Dagnelund, D.; Buyanova, I. A.; Tu, C. W.; Polimeni, A.; Capizzi, M.; Chen, W. M. // Applied Physics Letters;10/10/2011, Vol. 99 Issue 15, p152109 

    Effects of hydrogen on the recently discovered defect-engineered spin filtering in GaNAs are investigated by optical spin orientation and optically detected magnetic resonance. Post-growth hydrogen treatments are shown to lead to nearly complete quenching of the room-temperature spin-filtering...

  • Transient optical response of quantum well excitons to intense narrowband terahertz pulses. Jameson, A. D.; Tomaino, J. L.; Lee, Yun-Shik; Prineas, J. P.; Steiner, J. T.; Kira, M.; Koch, S. W. // Applied Physics Letters;11/16/2009, Vol. 95 Issue 20, p201107 

    Intense narrowband terahertz pulses are used to modify excitonic transitions in semiconductor quantum wells and to study the dephasing properties of the optically dark 2p states. Time-resolved terahertz-pump and optical-probe measurements exhibit strong nonlinear optical transients of the 1s...

  • Inversionless amplification in semiconductor nanostructures: A way to create a frequency-tunable laser of far-infrared and terahertz radiation. Kukushkin, V. // Semiconductors;Nov2010, Vol. 44 Issue 11, p1435 

    scheme of a far-infrared and terahertz amplifier or laser based on a semiconductor nanostructure, consisting of a superlattice of double quantum wells of a certain design placed into a planar metal waveguide and pumped by a CO laser, is suggested. The structure operation is based on the...

  • Terahertz emission and photoconductivity in n-type GaAs/AlGaAs quantum wells: the role of resonant impurity states. Firsov, D.; Shalygin, V.; Panevin, V.; Melentyev, G.; Sofronov, A.; Vorobjev, L.; Andrianov, A.; Zakhar'in, A.; Mikhrin, V.; Vasil'ev, A.; Zhukov, A.; Gavrilenko, L.; Gavrilenko, V.; Antonov, A.; Aleshkin, V. // Semiconductors;Nov2010, Vol. 44 Issue 11, p1394 

    Terahertz emission spectra in a longitudinal electric field and lateral photoconductivity spectra under terahertz illumination have been studied in structures with GaAs/AlGaAs quantum wells (QWs). It is shown that the spectra contain features associated with electron transitions involving...

  • Nonlinear optical properties of semiconductor quantum wells under intense terahertz radiation. Zhang, T. Y.; Zhao, W.; Liu, X. M.; Zhang, C. // Applied Physics Letters;7/23/2007, Vol. 91 Issue 4, p041909 

    The nonlinear optical properties of semiconductor quantum wells driven by intense in-plane terahertz electric fields are investigated theoretically by employing the extended semiconductor Bloch equations. The dynamical Franz-Keldysh effect of the optical absorption near the band edge is analyzed...

  • Intra-miniband gain in a super-superlattice structure with alternating electric-field domains. Schrottke, L.; Giehler, M.; Grahn, H. T. // Journal of Applied Physics;2/1/2007, Vol. 101 Issue 3, p036101 

    A super-superlattice structure containing a conventional superlattice, a graded-gap superlattice, and a wide quantum well in its unit cell is analyzed. It is designed in such a way that alternating high- and low-electric-field domains appear due to the presence of positive and negative space...

  • GaN/AlN Multiple Quantum Wells Grown on GaN-AlN Waveguide Structure by Metalorganic Vapor-Phase Epitaxy. Kumtornkittikul, Chaiyasit; Sugiyama, Masakazu; Nakano, Yoshiaki // Journal of Electronic Materials;Apr2006, Vol. 35 Issue 4, p744 

    High-optical-confinement waveguide structure based on nitride semiconductors is proposed and demonstrated for the first time with metal organic vaporphase epitaxy. The waveguide structure composed of 1-mm-thick AlN cladding layer, 2-mm-thick GaN guiding layer, and 40 periods of GaN/AlN multiple...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics