Experimental Study Of Nonlinear Periodic Structures
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| Total Pages | : 67 |
| Release | : 1995 |
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The optical properties of two examples of nonlinear periodic structures experimentally studied: colloidal crystals used as nonlinear distributed feedback structures and nonlinear volume holographic elements. The transmission of the colloidal crystals was found to be dramatically modified by an incident field whose frequency was tuned within or near the stop gap of the crystal. Optical limiting was observed when the frequency of the incident field was tuned to the high frequency edge of the stop gap. Optical switching and bistability were observed when the frequency was tuned to within the stop gap. The switching intensity was seen to decrease as the frequency of the incident light was tuned further into the stop gap. This result can not be explained by the simple model of a nonlinear distributed feedback structure. The transmission was also found to exhibit temporal fluctuations at high intensities. The nonlinear volume holographic structures consisted of a porous photopolymer in which a permanent grating was recorded and then was imbibed with a nematic liquid crystal. The diffraction efficiency of the grating was switched from high to low using a control beam power of 8.4 mW. The response time of the switching was limited by the response time of the thermal nonlinearity of the liquid crystal and was measured to be approximately 1 ms. (MM).
| Author | : Richart E. Slusher |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 382 |
| Release | : 2013-06-29 |
| Genre | : Science |
| ISBN | : 3662051443 |
Nonlinear optical studies of periodic dielectric structures have blossomed in the past two decades. New fabrication techniques are producing fiber grating and multidimensional photonic crystals in materials where the refractive index can be varied by light pulses and beams. Gap solitons that can propagate at any velocity from zero to the speed of light and spatial solitons that prevent the diffractive spread of light in waveguide arrays are two examples of the new phenomena described in this book. Many new materials and structures are being developed that will impact new optical devices with applications in optical communications and optical data processing. All the above topics are addressed in detail in this book.
| Author | : Peyman Sarrafi |
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| Total Pages | : |
| Release | : 2014 |
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| Total Pages | : 0 |
| Release | : 2000 |
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It has been realized for decades that spatially localized modes can occur in purely harmonic lattices only when disorder is introduced so that the translational invariance of the underlying lattice is broken. In recent years it has been noted that some vibrations in perfectly periodic lattices containing both nonlinearity and discreteness appear to localize and the study of this intrinsic localization in various nonlinear periodic lattices is proving quite fruitful. Recently, this earlier work has been formalized in terms of a number of useful existence and stability criteria, and many physically exciting contexts are currently emerging - in nonlinear lattice dynamics (including fracture and friction), magnetic systems, molecular crystals, electron-phonon and magnon-phonon systems, structural biology, and nonlinear optics. The potential for these self-localized oscillatory excitations in equilibrium and nonequilibrium classical and quantum discrete lattices is now extensive and such nonlinear condensed matter research has become our major activity.
| Author | : Stefano Trillo |
| Publisher | : Springer |
| Total Pages | : 468 |
| Release | : 2013-06-05 |
| Genre | : Science |
| ISBN | : 354044582X |
Solitary wave physics plays a significant role from modern optical physics to optical communication, optical switching and optical storage. This book gives an updated overview of optical solitons, as a reference and guide for advanced students and scientists working in the field.
| Author | : Pierre A. Deymier |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 388 |
| Release | : 2013-01-13 |
| Genre | : Technology & Engineering |
| ISBN | : 3642312322 |
This comprehensive book presents all aspects of acoustic metamaterials and phononic crystals. The emphasis is on acoustic wave propagation phenomena at interfaces such as refraction, especially unusual refractive properties and negative refraction. A thorough discussion of the mechanisms leading to such refractive phenomena includes local resonances in metamaterials and scattering in phononic crystals.
| Author | : |
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| Total Pages | : 400 |
| Release | : 1948 |
| Genre | : Mechanics, Applied |
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| Author | : Francis C. Moon |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 559 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 9401153205 |
This book presents the latest research results in the area of applied nonlinear dynamics and chaos theory. Papers by three academic generations address new applications of nonlinear dynamics to mechanics, including fluid-structure interaction, machining and mechanics of solids, and many other applications.
| Author | : Gaetan Kerschen |
| Publisher | : Springer |
| Total Pages | : 271 |
| Release | : 2019-06-28 |
| Genre | : Science |
| ISBN | : 303012391X |
Nonlinear Structures & Systems, Volume 1: Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics, 2019, the first volume of eight from the Conference brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Nonlinear Dynamics, including papers on: Nonlinear Reduced-order Modeling Jointed Structures: Identification, Mechanics, Dynamics Experimental Nonlinear Dynamics Nonlinear Model & Modal Interactions Nonlinear Damping Nonlinear Modeling & Simulation Nonlinearity & System Identification
| Author | : |
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| Total Pages | : 602 |
| Release | : 1995 |
| Genre | : Aeronautics |
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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
