One-dimensional cuprate as a nonlinear optical material for ultrafast all-optical switching

Ashida, M.; Ogasawara, T.; Tokura, Y.; Uchida, S.; Mazumdar, S.; Kuwata-Gonokami, M.
May 2001
Applied Physics Letters;5/7/2001, Vol. 78 Issue 19, p2831
Academic Journal
We examine the feasibility of ultrafast all-optical switching utilizing a one-dimensional cuprate Sr[sub 2]CuO[sub 3] operable within the optical fiber communication window at room temperature by using the pump-probe spectroscopy and Z-scan measurements. The strength of the interband two-photon absorption in Sr[sub 2]CuO[sub 3] is much larger than that of conventional semiconductors, and is comparable to the largest reported values in π-conjugated polymers. The intensity-dependent refractive index, however, is considerably larger than that of polymeric materials. We further show that the recovery of optical transparency after the photoinjection of carriers lies within picosecond time scale. Large nonlinearity, ultrafast response, and high damage threshold make the one-dimensional cuprate a potential material for multiterabits/second rate all-optical switch. © 2001 American Institute of Physics.


Related Articles

  • Generalized adjoint for physical processes with parameterized discontinuities. Part IV: Problems... Xu, Quin // Journal of the Atmospheric Sciences;12/1/97, Vol. 54 Issue 23, p2722 

    Presents information on the physical processes with parameterized discontinuities while focusing on the parameterized on and off switches which are triggered at a discrete time levels by threshold condition in a numerical model. What the response and costfunction contains; Causes of the...

  • Phase synchronization of switching processes in a stochastic bistable system with an aperiodic external influence. Sil�chenko, A. N.; Kapitanik, T.; Anishchenko, V. S. // Technical Physics Letters;Sep98, Vol. 24 Issue 9, p712 

    The synchronization of switching in a stochastic bistable system perturbed by a chaotic signal is analyzed. The effect is described in terms of the classical theory of phase synchronization.

  • Task-set reconfiguration with predictable and unpredictable task switches. Monsell, Stephen; Sumner, Petroc; Waters, Helen // Memory & Cognition;Apr2003, Vol. 31 Issue 3, p327 

    Participants switched frequently between high/low and odd/even classification of a digit. The interval between a task cue and the next digit varied between blocks. In Experiment 1, the task switched predictably every two, four, or eight trials. In Experiment 2, switching predictably every four...

  • Ultrafast all-optical switching in GaAlAs directional couplers at 1.55 mum without multiphoton.... Al-hemyari, K.; Villeneuve, A. // Applied Physics Letters;12/27/1993, Vol. 63 Issue 26, p3562 

    Presents results on ultrafast, high throughput all-optical switching in optimized Ga[sub 0.82]Al[sub 0.18]As nonlinear directional couplers (NLDC). Peak switching power of the one half-beat-length NLDC; Effect of group velocity dispersion on output pulses and response; Experimental and...

  • Experimental observation of time jitter in semiconductor laser turn-on. Spano, P.; D’Ottavi, A.; Mecozzi, A.; Daino, B. // Applied Physics Letters;6/27/1988, Vol. 52 Issue 26, p2203 

    We report an experimental study which shows how time jitter in semiconductor lasers, which arises when such sources are switched from below to above threshold, is related to the actual operating conditions. The effect is observed both in distributed feedback and in Fabry–Perot lasers,...

  • Switching dynamics of suspended mesogenic polymer microspheres. Cairns, Darran R.; Sibulkin, Merwin; Crawford, Gregory P. // Applied Physics Letters;4/30/2001, Vol. 78 Issue 18, p2643 

    Ordered polymer microspheres were produced by photo-polymerizing reactive nematic liquid crystal droplets suspended in glycerol, thus capturing the mesogenic order indefinitely. The electro-optic switching of these structures suspended in a fluid is investigated and described by a simple...

  • Biased switching of small magnetic particles. Stamps, R.L.; Hillebrands, B. // Applied Physics Letters;8/23/1999, Vol. 75 Issue 8, p1143 

    Studies high-frequency switching of single domain, uniaxial magnetic particles in terms of transition rates controlled by a transverse bias field. Achievement of fast switching times by using bias fields; Analytical expressions for the switching time; General configurations examined using...

  • A HOMOTOPY METHOD OF SWITCHING SOLUTION BRANCHES AT THE PITCHFORK BIFURCATION POINT.  // Journal of Computational Mathematics;May2001, Vol. 19 Issue 3, p299 

    Provides information on a study which proposed a continuation method for switching solution branches at a pitchfork point. Problem of the standard pitchfork; Information on the systems of equations; Numerical examples of the efficiency of the proposed switching method.

  • Gigahertz switching behavior of polarization-bistable InGaAsP/InP lasers under high-frequency.... Klehr, A.; Muller, R. // Applied Physics Letters;2/14/1994, Vol. 64 Issue 7, p830 

    Investigates the gigahertz switching dynamics of polarization-bistable ridge-waveguide-indium gallium arsenic phosphide/indium phosphide laser. Modulation of injection current; Difference among the types of emission behaviors; Occurrence of stochastic modal switching at high modulation...


Read the Article


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

Try another library?
Sign out of this library

Other Topics