Journal ArticleDOI
Enhancement of the guided‐wave second‐harmonic generation in the form of Cerenkov radiation
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TLDR
In this article, a method for enhancing guided-wave second-harmonic generation (SHG) phase matched by a Cerenkov radiation scheme by tailoring the transverse (y direction) nonlinear susceptibility profile in the waveguide channel is proposed.Abstract:
A method for enhancing guided‐wave second‐harmonic generation (SHG) phase matched by a Cerenkov radiation scheme by means of tailoring the transverse (y direction) nonlinear susceptibility profile in the waveguide channel is proposed. Specifically, linear and domain‐inverted (poled) channels embedded in a nonlinear substrate are considered, and the SHG efficiency for each structure is compared with that for the conventional nonlinear channel without domain inversion. Through electromagnetic field analysis, a significant enhancement of SHG is demonstrated, particularly with the domain inverted channel.read more
Citations
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Journal ArticleDOI
Three-dimensional ferroelectric domain visualization by Čerenkov-type second harmonic generation
TL;DR: It is shown that focusing a laser light onto the boundary between antiparallel ferroelectric domains leads to the non-collinear generation of two second harmonic (SH) beams, which are emitted in a plane normal to the domain boundaries at the angles that satisfy the Cerenkov-type phase matching condition.
Journal ArticleDOI
Hydrogen in lithium niobate
José Manuel Cabrera,José Olivares,Mercedes Carrascosa,Joaquín Rams,Richard S. Muller,Ernesto Diéguez +5 more
TL;DR: In this paper, a review of the current knowledge on the main properties and applications of hydrogen in LiNbO3 is presented, which is divided into three parts: the first part is devoted to general properties such as methods of defect production and control, techniques used for their detection and characterization, as well as interactions with other lattice defects.
Journal ArticleDOI
Cerenkov-Type Second-Harmonic Generation in Two-Dimensional Nonlinear Photonic Structures
Solomon M. Saltiel,Yan Sheng,Noa Voloch-Bloch,Dragomir N. Neshev,Wieslaw Krolikowski,Ady Arie,Kaloian Koynov,Yu. S. Kivshar +7 more
TL;DR: In this article, the Cerenkov-type second-harmonic generation in several different two-dimensional nonlinear photonic structures formed in birefringent crystals with the 3 m symmetry was studied.
Journal ArticleDOI
Cerenkov configuration second harmonic generation in proton-exchanged lithium niobate guides
TL;DR: A theoretical and experimental study of second-harmonic generation using the Cerenkov configuration with proton-exchanged lithium niobate guides is presented in this article, where the analytic solution of the problem for the case of planar step-index guides makes it possible to identify the essential role played by the discontinuity of the nonlinear polarization at the guide-substrate interface.
Journal ArticleDOI
Second-order nonlinearities in the domain walls of periodically poled KTiOPO4
TL;DR: The domain wall regions in periodically poled KTiOPO4 crystals were examined and found to give rise to phasematched second harmonic generation in the Cerenkov directions as discussed by the authors.
References
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Journal ArticleDOI
Optical second harmonic generation in form of coherent cerenkov radiation from a thin‐film waveguide
TL;DR: In this paper, the authors reported optical second harmonic generation in form of coherent Cerenkov radiation, where the fundamental wave at 1.06 μm propagates in a thin-film optical waveguide which is simply a ZnS film vacuumdeposited on a single-crystal ZnO substrate.
Journal ArticleDOI
Waveguides and fibers for nonlinear optics
TL;DR: In this article, the operation and materials requirements for a variety of nonlinear-optics guided-wave devices are reviewed and a detailed discussion of the operation of such devices is presented.
Journal ArticleDOI
Blue light generation by frequency doubling in periodically poled lithium niobate channel waveguide
TL;DR: In this paper, the blue light at 410 nm was generated by continuous-wave frequency doubling in a periodically poled lithium niobate channel waveguide at room temperature, using the d/sub 33/nonlinear coefficient.
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