Download or read book Linear and nonlinear optical spectroscopies of SiGe interfaces and Si nanocrystals written by Yingying Jiang and published by . This book was released on 2002 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Spectroscopy Study of Silicon Nanocrystals written by Junwei Wei and published by . This book was released on 2012 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon nanocrystals (NCs), especially Si NCs embedded in SiO2, have been studied intensely for decades for their potential application in silicon photonics, especially as efficient room temperature light emitters. Despite progress in fabricating photonic devices from Si NCs, the origin of the efficient photoluminescence (PL), the electronic and microscopic structure of the nanocrystals, and the structure of the elusive NC/SiO2 interfaces for the oxide-embedded nanocrystals, remain controversial. Optical spectroscopy provides a powerful noninvasive tool for probing the structure of the Si NCs, including the active buried NC/SiO2 interfaces of embedded particles. In this thesis work, oxide-embedded and free-standing alkyl-passivated silicon nanocrystals, prepared by different techniques, have been studied by linear and nonlinear optical spectroscopies. Cross-polarized 2-beam second-harmonic and sum-frequency generation (XP2-SHG/SFG) has been applied spectroscopically to study oxide embedded Si NCs of different sizes (3 to 5 nm diameter) and interface chemistries. The SHG/SFG spectra of silicon nanocrystals (Si NCs) prepared by implanting Si ions uniformly into silica substrates, then annealing, are compared and contrasted to their spectroscopic ellipsometric (SE) and photoluminescence excitation (PLE) spectra. Three resonances--two close in energy to E1 (3.4 eV) and E2 (4.27 eV) critical-point resonances of crystalline silicon (c-Si), and a broad resonance intermediate in energy between E1 and E2--are observed in all three types of spectra. These features are observed in conjunction with a sharp 520 cm−1 Raman peak characteristic of c-Si and an a-Si tail in the Raman spectra. The appearance of bulk-like CP resonances in the parallel PLE, SE and SHG/SFG spectra from Si NCs suggests the basic electronic structure of the bulk c-Si is preserved in nano-particles as small as 3 nm in diameter, albeit with significant size-dependent modification. At the same time, the prominence of a non-bulk-like resonance intermediate in energy between E1 and E2 CPs in all three types of spectra demonstrates the important contribution of nano-interfaces to the electronic structure. We also applied Raman spectroscopy to study oxide-embedded and oxide-free alkyl-passivated Si NCs with diameters ranging from 3 nm to greater than 10 nm synthesized by thermal decomposition of hydrogen silsesquioxane (HSQ). While oxide matrix complicates the size-dependence of the Raman peak shift for oxide-embedded nanocrystals, the Raman peak of the free-standing alkyl-passivated Si NCs shifts monotonically with NC size.
Download or read book Second Order Non linear Optics of Silicon and Silicon Nanostructures written by O. A. Aktsipetrov and published by CRC Press. This book was released on 2018-09-03 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory and practice of the non-linear optics of silicon are inextricably linked with a variety of areas of solid state physics, particularly semiconductor physics. However, the current literature linking these fields is scattered across various sources and is lacking in depth. Second Order Non-linear Optics of Silicon and Silicon Nanostructures describes the physical properties of silicon as they apply to non-linear optics while also covering details of the physics of semiconductors. The book contains six chapters that focus on: The physical properties and linear optics of silicon Basic theoretical concepts of reflected second harmonics (RSH) The authors’ theory of the generation of RSH at the non-linear medium–linear medium interface An analytical review of work on the non-linear optics of silicon The results of non-linear optical studies of silicon nanostructures A theory of photoinduced electronic processes in semiconductors and their influence on RSH generation The book also includes methodological problems and a significant amount of reference data. It not only reflects the current state of research but also provides a single, thorough source of introductory information for those who are becoming familiar with non-linear optics. Second Order Non-linear Optics of Silicon and Silicon Nanostructures is a valuable contribution to the fields of non-linear optics, semiconductor physics, and microelectronics, as well as a useful resource for a wide range of readers, from undergraduates to researchers.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Second Order Non linear Optics of Silicon and Silicon Nanostructures written by O. A. Aktsipetrov and published by CRC Press. This book was released on 2018-09-03 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory and practice of the non-linear optics of silicon are inextricably linked with a variety of areas of solid state physics, particularly semiconductor physics. However, the current literature linking these fields is scattered across various sources and is lacking in depth. Second Order Non-linear Optics of Silicon and Silicon Nanostructures describes the physical properties of silicon as they apply to non-linear optics while also covering details of the physics of semiconductors. The book contains six chapters that focus on: The physical properties and linear optics of silicon Basic theoretical concepts of reflected second harmonics (RSH) The authors’ theory of the generation of RSH at the non-linear medium–linear medium interface An analytical review of work on the non-linear optics of silicon The results of non-linear optical studies of silicon nanostructures A theory of photoinduced electronic processes in semiconductors and their influence on RSH generation The book also includes methodological problems and a significant amount of reference data. It not only reflects the current state of research but also provides a single, thorough source of introductory information for those who are becoming familiar with non-linear optics. Second Order Non-linear Optics of Silicon and Silicon Nanostructures is a valuable contribution to the fields of non-linear optics, semiconductor physics, and microelectronics, as well as a useful resource for a wide range of readers, from undergraduates to researchers.
Download or read book Optical Properties of Si SiO2 Interfaces by Linear and Nonlinear Optical Techniques written by Jih-Fu Trevor Wang and published by . This book was released on 2001 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optical Properties of Si SiO2 Interfaces by Linear and Nonlinear Optical Techniques written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to understand the physics of (001)Si-SiO data can be realized by the SBHM. From the SHG analysis we find effective angles of incidence and observation of about 12°, indicating that the SHG intensity originates at the Si side of the interface. This work further demonstrates the advantages of SBHM for interpreting SHG data with respect to conventional approaches. By expressing nonlinear polarizations in terms of complex hyperpolarizabilities associated with each of bonds in a unit cell, the description is not only much simpler but also provides more physical information and insight that can otherwise be obtained on a microscopic scale.
Download or read book Nanostructured Materials and Nanotechnology written by Hari Singh Nalwa and published by Gulf Professional Publishing. This book was released on 2002 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanotechnology Provides comprehensive coverage of the dominant technology of the 21st century Written by a truly international list of contributors.
Download or read book Nonlinear and Linear Optical Studies of Si SiO 2 Interfaces written by Kees van Hasselt and published by . This book was released on 1997 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optics of Nanomaterials written by Vladimir I. Gavrilenko and published by CRC Press. This book was released on 2019-11-08 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials are mainly categorized into three groups: fundamental building blocks, dispersions or composites of building blocks in randomly ordered matrices, and spatially resolved, ordered nanostructures. Today, nanomaterials that offer some unique optical properties may find application as pure materials or may be integrated into larger structures. This book presents examples of both pure and composite materials that include organic–inorganic nanocomposites and quantum dots embedded into different matrices for various applications in modern nanotechnology. This edition has been thoroughly revised and updated with the most recent developments in the field. The newly added introductory paragraphs will help students and young researchers in better understanding the chapters. The new sections on frequently used physical constants and units conversions as well as the updated bibliography add to the book’s utility. This textbook is unique compared with its counterparts in the market in respect of its scope as it contains introductory sections to the important topics on nanomaterial optics. This feature broadens its readership from engineers and researchers working in the field of materials science and optics, to lecturers, graduate students, and beginners who want to deepen their knowledge in nanomaterial optics.
Download or read book Nonlinear and Linear Optical Studies of Si SiO2 Interfaces written by Cornelis Wilhelmus Van Hasselt and published by . This book was released on 1997* with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zsfassung in niederländ. Sprache.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasmonics and its Applications written by Grégory Barbillon and published by MDPI. This book was released on 2019-06-05 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmonics is a rapidly developing field that combines fundamental research and applications ranging from areas such as physics to engineering, chemistry, biology, medicine, food sciences, and the environmental sciences. Plasmonics appeared in the 1950s with the discovery of surface plasmon polaritons. Plasmonics then went through a novel propulsion in the mid-1970s, when surface-enhanced Raman scattering was discovered. Nevertheless, it is in this last decade that a very significant explosion of plasmonics and its applications has occurred. Thus, this book provides a snapshot of the current advances in these various areas of plasmonics and its applications, such as engineering, sensing, surface-enhanced fluorescence, catalysis, and photovoltaic devices.
Download or read book Nonlinear Optics written by Natalia Kamanina and published by BoD – Books on Demand. This book was released on 2012-02-29 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid development of optoelectronic devices and laser techniques poses an important task of creating and studying, from one side, the structures capable of effectively converting, modulating, and recording optical data in a wide range of radiation energy densities and frequencies, from another side, the new schemes and approaches capable to activate and simulate the modern features. It is well known that nonlinear optical phenomena and nonlinear optical materials have the promising place to resolve these complicated technical tasks. The advanced idea, approach, and information described in this book will be fruitful for the readers to find a sustainable solution in a fundamental study and in the industry approach. The book can be useful for the students, post-graduate students, engineers, researchers and technical officers of optoelectronic universities and companies.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Optics and Spectroscopy written by and published by . This book was released on 2005 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
