TITLE

Induced transient birefringence of a resonantly pumped molecular gas

AUTHOR(S)
Shen, Liyang; Ho, Tak-San; Shi, Shenghua; Rabitz, Herschel; Lin, Chen; Littman, M.; Weiner, Andrew M.
PUB. DATE
October 1996
SOURCE
Journal of Chemical Physics;10/15/1996, Vol. 105 Issue 15, p6200
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present a theoretical study of the induced transient birefringence of a low density homogeneous molecular gas in a resonant pump–probe experiment. The molecular coherent state induced by the resonant pump field is described by second-order perturbation theory. The induced birefringence can be detected by a delayed probe pulse propagating through the molecular medium after illumination by the pump pulse. In the case of a nonresonant probe, the birefringence is linearly proportional to the mean value of the electronic polarizability of the molecular gas. The birefringence signal is composed of distinct components due to population change and those of rotational, vibrational, and mixed vibrational–rotational origins. This is demonstrated by numerical simulations on Li2 gas. Moreover, the quantum beats contained in the birefringence, as a function of the time delay between the pump and probe pulses, is dominated by the pure rotational motion. Finally, the birefringence is sensitive to the shape of the applied pump pulse and dependent on the spectral phase of the pump pulse. © 1996 American Institute of Physics.
ACCESSION #
7649524

 

Related Articles

  • Polarization properties of ultrafast white-light continuum generated in condensed media. Midorikawa, Katsumi; Kawano, Hiroyuki; Suda, Akira; Nagura, Chihiro; Obara, Minoru // Applied Physics Letters;2/11/2002, Vol. 80 Issue 6, p923 

    Polarization properties of a white-light continuum generated by 392 nm femtosecond laser pulses in transparent condensed media is investigated. Self-induced polarization change of the generated white-light continuum is observed in an isotropic material with a cubic crystal structure such as...

  • Transient electric birefringence in solutions of self-assembled rods. van der Schoot, Paul; Cates, Michael E. // Journal of Chemical Physics;9/15/1994, Vol. 101 Issue 6, p5040 

    We study, theoretically, the transient electric birefringence of semidilute and concentrated solutions of self-assembling rodlike aggregates in the fast reaction regime. The aggregates interact via a hard core excluded volume potential. We find that although the rods are very polydisperse, the...

  • Capillary condensation monitored in birefringent porous silicon layers. Künzner, N.; Gross, E.; Diener, J.; Kovalev, D.; Timoshenko, V. Yu.; Wallacher, D. // Journal of Applied Physics;10/15/2003, Vol. 94 Issue 8, p4913 

    We performed studies on the capillary condensation of various substances in optically anisotropic porous silicon layers. Their strong in-plane form birefringence has been utilized to analyze the polarization state of the transmitted light when molecules penetrate into the pores. The polarization...

  • Transient electric birefringence of colloidal particles immersed in shear flow. I. Approximate calculations from low fields to high fields under the action of a rectangular pulse and a reversing pulse. Matsumoto, Mitsuhiro // Journal of Chemical Physics;3/15/1992, Vol. 96 Issue 6, p4750 

    The rotational diffusion equation for rotational ellipsoidal particles in solution has been approximately solved when the solute particles oriented by a shear flow are acted on by a rectangular and reversing electric pulse along the direction of the velocity gradient of flow. The angular...

  • A perfect plasmonic quarter-wave plate. Gorodetski, Yuri; Lombard, Emmanuel; Drezet, Aurélien; Genet, Cyriaque; Ebbesen, Thomas W. // Applied Physics Letters;11/12/2012, Vol. 101 Issue 20, p201103 

    The excitation of surface plasmons on an elliptical grating followed by the transmission through a subwavelength aperture can modify the polarization state of the incoming light. The combined effect of the elliptical grooves and a slightly elliptical central hole allows to fully control the...

  • Giant birefringence and tunable differential group delay in Bragg reflector based on tapered three-dimensional hollow waveguide. Kumar, Mukesh; Sakagichi, Takahiro; Koyama, Fumio // Applied Physics Letters;2/9/2009, Vol. 94 Issue 6, pN.PAG 

    A tunable Bragg reflector based on a tapered three-dimensional (3D) hollow waveguide (HWG) with variable taper angle has been proposed and demonstrated. A large grating coupling coefficient for a large reflection band and a giant birefringence of 0.01 have been achieved by optimizing the...

  • Ferromagnetic domains imaging with a spin-polarized STM using GaAs tips. Nabhan, W.; Suzuki, Y. // Applied Physics A: Materials Science & Processing;1998, Vol. 66 Issue 7, pS101 

    Abstract. We have implemented a spin-polarized scanning tunneling microscope by using p-type GaAs tips under illumination by a He-Ne laser source. Circular polarization modulation is achieved with a Pockels cell. The experiments were performed on three-monolayer cobalt films exhibiting...

  • Strain-Induced Modified Form Birefringence In A One-Dimensional Photonic Crystal: An Exact Coupled-Mode Approach. Boucher, Y. G.; Bentivegna, F. F. L.; Lyubchanskii, I. L.; Dadoenkova, N. N.; Zabolotin, A. E.; Shyshmakov, A. L. // AIP Conference Proceedings;10/7/2009, Vol. 1176 Issue 1, p102 

    We use an exact coupled-mode theory to describe the effect of interfacial strain on the optical properties of a one-dimensional photonic crystal, with special emphasis on modified form birefringence coming from strain-induced local anisotropy. Parallel and perpendicular states of polarization...

  • Normal modes and birefringent magnetophotonic crystals. Levy, Miguel // Journal of Applied Physics;4/1/2006, Vol. 99 Issue 7, p073104 

    A theoretical model for single-defect one-dimensional magnetic photonic crystals with combined linear and circular birefringences is presented. The model elucidates the polarization response of waveguide magnetophotonic crystals and predicts a spectrally asymmetric transmittance detuning from...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics