Subpicosecond optical switching in polystyrene opal

Yuanhao Liu; Xiaoyong Hu; Dongxiang Zhang; Bingying Cheng; Daozhong Zhang; Qingbo Meng
April 2005
Applied Physics Letters;4/11/2005, Vol. 86 Issue 15, p151102
Academic Journal
An ultrafast all-optical switching is demonstrated in an organic three-dimensional nonlinear photonic crystal with a response time as short as 120 fs. The operating wavelength of the optical switching is in the visible spectrum. The switching function is realized by a shift of the photonic band gap under optical pumping. It is found that the photonic band gap shifts about 10 nm with the excitation of 27.5 GW/cm2 pump laser.


Related Articles

  • Attosecond pulses open new window on atomic physics. Hecht, Jeff // Laser Focus World;Oct2005, Vol. 41 Issue 10, p103 

    The article discusses the ability of femtosecond pulses to generate attosecond pulses in the extreme-ultraviolet. Femtosecond optical pulses made it possible to examine the process of molecular chemistry by slicing time into small pieces that it froze the action. Meanwhile, attosecond physics...

  • Ultrafast photonic device integrates optical intensity signals.  // Laser Focus World;Jun2009, Vol. 45 Issue 6, p14 

    The article reports on the new ultrafast photonic intensity integrator created by a group at the Institut National de la Recherche Scientifique-Énergie, Matériaux et Télécommunications (INRS-EMT) in Varennes, Quebec. It states that the new device is used to integrate optical...

  • Switching of Picosecond Pulses under Third Order Dispersion Effects in a Non Linear Fiber Coupler. Rekha, S.; James, Raja S. // International Journal of Advanced Computer Research;Mar2013, Vol. 3 Issue 1, p50 

    In this paper, we numerically study the propagation and switching of the picosecond pulses under normal and anomalous dispersion regimes. If a strong optical pulse is given as input to a single core of two core fiber coupler under anomalous dispersion regime, then as the pulse in one core...

  • A subnanosecond pulsed laser-source for mid-infrared LIDAR. Geiser, P.; Willer, U.; Walter, D.; Schade, W. // Applied Physics B: Lasers & Optics;May2006, Vol. 83 Issue 2, p175 

    A new subnanosecond pulsed laser-source for mid-infrared (MIR) LIDARbased on difference-frequency generation (DFG) in periodically poled LiNbO3 (PPLN) is developed. An output pulse energy of up to 36 pJ is achieved by amplification of the pump and signal laser. A pulse duration of Δτ=538...

  • Transferring vibrational population between electronic states of diatomic molecules via light-induced-potential shaping. Chang, B. Y.; Solá, I. R.; Santamaría, J.; Malinovsky, V. S.; Krause, J. L. // Journal of Chemical Physics;5/22/2001, Vol. 114 Issue 20 

    We investigate two-photon, selective excitation of diatomic molecules with intense, ultrafast laser pulses. The method involves transfer of a vibrational population between two electronic states by shaping of light-induced potentials (LIPs). Creation and control of the LIPs is accomplished by...

  • Distant clock synchronization using entangled photon pairs. Valencia, Alejandra; Scarcelli, Giuliano; Yanhua Shih // Applied Physics Letters;9/27/2004, Vol. 85 Issue 13, p2655 

    We report a proof-of-principle experiment on distant clock synchronization. Besides the achievement of picosecond resolution at 3 km distance, this experiment demonstrated a concept for high-accuracy nonlocal timing and positioning based on the quantum feature of entangled states.

  • Photonic THz generation in GaAs via resonantly enhanced intracavity multispectral mixing. Vodopyanov, K. L.; Hurlbut, W. C.; Kozlov, V. G. // Applied Physics Letters;7/25/2011, Vol. 99 Issue 4, p041104 

    We generate tunable (1.5-2 THz) terahertz output with up to 200 μW average power in periodically inverted GaAs using resonantly enhanced multispectral frequency mixing inside the cavity of a type-0 optical parametric oscillator operating at degeneracy. The optical parametric oscillator was...

  • Experimental diagnostic module for ultrafast combined interferometry of the processes of interaction of ultrashort laser pulses with condensed media in vacuum. Loktionov, E. Yu.; Ovchinnikov, A. V.; Protasov, Yu. Yu.; Sitnikov, D. S. // Instruments & Experimental Techniques;May2010, Vol. 53 Issue 3, p416 

    An experimental diagnostic module based on a femtosecond laser system (τ0.5 ∼ 45-70 fs, 7n = 266, 400, and 800 nm) and the experimental technique for ultrafast combined interferometric investigation of the interaction of ultrashort laser pulses with condensed media in vacuum are...

  • Switchable AlxGa1-xAs all-optical delay line at 1.55 μm. Bristow, A. D.; Iyer, R.; Aitchison, J. S.; van Driel, H. M.; Smirl, Arthur L. // Applied Physics Letters;3/5/2007, Vol. 90 Issue 10, p101112 

    The authors demonstrate an on-chip optical delay in AlxGa1-xAs that operates at room temperature and 1.55 μm. A nonlinear directional coupler for optical switching and a 188 ps long racetrack structure provide bit delays of >100 for picosecond pulses. In the linear regime the transmission...


Read the Article


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

Try another library?
Sign out of this library

Other Topics