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Laser IInduced Liinear and Nonlliinear Optiicall Studiies on Certaiin Metall Halliides and Tartrate Crystalls ffor Photoniic Applliicatiions

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Title Laser IInduced Liinear and Nonlliinear Optiicall Studiies on Certaiin Metall Halliides and Tartrate Crystalls ffor Photoniic Applliicatiions

 
Contributor Dr. P. Radhakrishnan
 
Subject Lead Halide Nonlinear crystals
Metal Tartrate Crystals
Nonlinear optical processes
Optics
Photoluminescence
Photonics
Thermal lensing
 
Description Nonlinear optics is a broad field of research and technology that
newlineencompasses subject matter in the field of Physics, Chemistry, and Engineering.
newlineIt is the branch of Optics that describes the behavior of light in nonlinear media,
newlinethat is, media in which the dielectric polarization P responds nonlinearly to the
newlineelectric field E of the light. This nonlinearity is typically only observed at very
newlinehigh light intensities. This area has applications in all optical and electro optical
newlinedevices used for communication, optical storage and optical computing. Many
newlinenonlinear optical effects have proved to be versatile probes for understanding
newlinebasic and applied problems. Nonlinear optical devices use nonlinear dependence
newlineof refractive index or absorption coefficient on the applied field. These nonlinear
newlineoptical devices are passive devices and are referred to as intelligent or smart
newlinematerials owing to the fact that the sensing, processing and activating functions
newlinerequired for optical processes are inherent to them which are otherwise separate
newlinein dynamic devices.The large interest in nonlinear optical crystalline materials has been
newlinemotivated by their potential use in the fabrication of all-optical photonic devices.
newlineTransparent crystalline materials can exhibit different kinds of
newlineoptical nonlinearities which are associated with a nonlinear polarization. The
newlinechoice of the most suitable crystal material for a given application is often far
newlinefrom trivial; it should involve the consideration of many aspects. A high
newlinenonlinearity for frequency conversion of ultra-short pulses does not help if the
newlineinteraction length is strongly limited by a large group velocity mismatch and the
newlinelow damage threshold limits the applicable optical intensities. Also, it can be
newlinehighly desirable to use a crystal material which can be critically phasematched
newlineat room temperature.Among the different types of nonlinear crystals, metal halides and
newlinetartrates have attracted due to their importance in photonics. Metal halides like
newlinelead halides have drawn attention because they exhibit interesting features from
newlinethe stand point of the electron-lattice interaction .These materials are important
newlinefor their luminescent properties. Tartrate single crystals show many interesting
newlinephysical properties such as ferroelectric, piezoelectric, dielectric and optical
newlinecharacteristics. They are used for nonlinear optical devices based on their optical
newlinetransmission characteristics. Among the several tartrate compounds, Strontium
newlinetartrate, Calcium tartrate and Cadmium tartrate have received greater attention
newlineon account of their ferroelectric, nonlinear optical and spectral characteristics.
newlineThe present thesis reports the linear and nonlinear aspects of these crystals and
newlinetheir potential applications in the field of photonics.
newline

 
Date 2016-07-05T08:47:36Z
2016-07-05T08:47:36Z
27/06/2010
23/04/2015
05/04/2016
 
Type Ph.D.
 
Identifier http://hdl.handle.net/10603/102597
 
Language English
 
Relation
 
Rights university
 
Format P: 264

DVD
 
Coverage Fluorescence emission of magnetic field applied Cadmium Tartrate and Z-scan trace of Lead Chloride
 
Publisher Cochin
Cochin University of Science and Technology
International School of Photonics
 
Source University