Polarization based control of optical hysteresis in coupled GaAs microdisks

Ghosh, S. N.; Buckley, B. B.; Ferri, C. G. L.; Li, X.; Mendoza, F. M.; Verma, Y. K.; Samarth, N.; Awschalom, D. D.; Ghosh, S.
July 2010
Applied Physics Letters;7/5/2010, Vol. 97 Issue 1, p011106
Academic Journal
Optical microresonators crafted from semiconducting materials are powerful systems for both understanding and harnessing the interactions between light and matter. We report an all-optical method of controlling the hysteretic emission of evanescently coupled GaAs microdisk pairs. Under partial excitation, the coupled lasing emission demonstrates optical bistability caused by saturable absorption. We observe that the presence of hysteresis can be modulated by the polarization state of the incident excitation. This optical control is an important functionality which, if extended to a large array, could lead to the creation of optical flip-flop and gated logic devices with multinode capabilities.


Related Articles

  • LIGHT TOUCH. Ravindran, Sandeep // Popular Science;Apr2010, Vol. 276 Issue 4, p10 

    An image of a microresonator, which is a device that uses photons to measure nanoparticles, is presented.

  • Control of photofragment angular distribution by laser phase variation. Hong Lae Kim; Bersohn, Richard // Journal of Chemical Physics;9/22/1997, Vol. 107 Issue 12, p4546 

    When a molecule is dissociated through separate excitations by one or two polarized photons the fragment distribution is forward-backward symmetric with respect to the polarization axis. However, if the molecule is simultaneously excited by optical electric fields, E(ω) and E(2ω), the...

  • All-optical switching in metamaterial with high structural symmetry. Tuz, V.R.; Prosvirnin, S.L. // European Physical Journal - Applied Physics;Dec2011, Vol. 56 Issue 3, pN.PAG 

    We argue the possibility of realization of a polarization-insensitive all-optical switching in a planar metamaterial composed of a 4-fold periodic array of two concentric metal rings placed on a substrate of nonlinear material. It is demonstrated that a switching may be achieved between...

  • Formation of horizontally polarized radiation in a cylindrical microstrip antenna. Svezhentsev, A. // Radiophysics & Quantum Electronics;Mar2012, Vol. 54 Issue 10, p690 

    We consider the problem of excitation of cylindrical microstrip antennas with complex-shaped radiators, which are capable of producing radiation mainly with horizontal polarization. The problem is solved by the method of moments in the spectral domain by using the piecewise-specified basic...

  • Far-infrared optical excitations in multiferroic TbMnO3. Schmidt, M.; Kant, Ch.; Rudolf, T.; Mayr, F.; Mukhin, A. A.; Balbashov, A. M.; Deisenhofer, J.; Loidl, A. // European Physical Journal B -- Condensed Matter;Oct2009, Vol. 71 Issue 3, p411 

    We provide a detailed study of the reflectivity of multiferroic TbMnO3 for wave numbers from 40 cm-1 to 1000 cm-1 and temperatures 5 K < T < 300 K. Excitations are studied for polarization directions E || a, the polarization where electromagnons are observed, and for E || c, the direction of the...

  • Metamaterial with polarization and direction insensitive resonant transmission response mimicking electromagnetically induced transparency. Papasimakis, N.; Fu, Y. H.; Fedotov, V. A.; Prosvirnin, S. L.; Tsai, D. P.; Zheludev, N. I. // Applied Physics Letters;5/25/2009, Vol. 94 Issue 21, p211902 

    We report on a planar metamaterial, the resonant transmission frequency of which does not depend on the polarization and angle of incidence of electromagnetic waves. The resonance results from the excitation of high-Q antisymmetric trapped current mode and shows sharp phase dispersion...

  • Growth and optical properties of α-sexithiopene doped para-sexiphenyl nanofibers. Hernandez-Sosa, G.; Simbrunner, C.; Sitter, H. // Applied Physics Letters;7/6/2009, Vol. 95 Issue 1, p013306 

    The deposition of highly crystalline self-assembled para-sexiphenyl (PSP) nanofibers doped with α-sexithiophene (6T) is reported. It is demonstrated that the morphology and orientation of the nanofibers are not altered by the presence of 6T, while the photoluminescence (PL) emission can be...

  • Optical detection of plasmonic and interband excitations in 1-nm-wide indium atomic wires. Chung, H. V.; Kubber, C. J.; Han, G.; Rigamonti, S.; Sanchez-Portal, D.; Enders, D.; Pucci, A.; Nagao, T. // Applied Physics Letters;6/14/2010, Vol. 96 Issue 24, p243101 

    Infrared spectroscopy is demonstrated to sensitively detect electronic excitations in 1-nm-wide wires made of indium. The polarization-dependent spectra measured at room temperature show a strong broadband plasmonic absorption feature in the direction parallel to the wires, while in the...

  • POLARIZED SHEAR WAVES FOR CRACK DETECTION AND CHARACTERIZATION. Turner, S. J.; Maxfield, B. W. // AIP Conference Proceedings;2/22/2010, Vol. 1211 Issue 1, p995 

    This paper describes a new approach to the detection and sizing of cracks in metals. It uses a newly developed technique based on interrogating materials with shear waves having varying polarization direction generated by a specially designed EMAT where the polarization direction is established...


Read the Article


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

Try another library?
Sign out of this library

Other Topics