Polarization and spatial information recovery by modal dispersal and phase conjugation: properties and applications

Tomita, Yasuo; Yahalom, Ram; Kyuma, Kazuo; Yariv, Amnon; Kwong, N.

doi:10.1109/3.18546

Cited by 11 publications

(1 citation statement)

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“…A degraded image is recovered using the PC wave, that is generated in a photorefractive self-pumped BaTiO 3 crystal 15) illuminated by a green laser. Although, strictly speaking, both wavefront and polarization distortions must be compensated for, 16,17) we consider here only the wavefront that is dominant. We tested three types of multimode optical fibers, namely, step-index silica, graded-index silica, and step-index plastic fibers.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Direct Image Transmission through Various Optical Fibers Using the Phase-Conjugate Wave

K¹,

Sakai²

2007

jjap

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The time evolution of flow-induced structures in low-concentration worm-like micellar solutions is studied using direct visualization and rheological methods. The visualization measurements show growth of a new viscous shear-induced phase (SIP) starting on the inner wall of a Couette shear cell at a time t1 after the commencement of shear flow. The SIP continues to grow across the shear cell until it fills the entire gap at a time t2. Rheological measurements show that the time t1 corresponds to the induction time for the increase in stress and that t2 corresponds to the plateau time for the saturation of stress. These measurements provide convincing evidence that the increase of stress with time results from the inhomogeneous growth of a new shear-induced phase in the flow cell. The growth of the new phase across the cell is approximately linear in time. ( * ) Permanent address: Laboratoire d'Ultrasons et de Dynamique des Fluides Complexes, URA au CNRS no. 851,

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Section: Introductionmentioning

confidence: 99%