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Ditemukan 6807 dokumen yang sesuai dengan query
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Jianquan, Yao
"This book covers the complete spectrum of nonlinear optics and all solid state lasers.The book integrates theory, calculations and practical design, technology, experimental schemes and applications. With the expansion and further development of Laser technology, the wavelength spectrum of Lasers had to be enlarged, even to be tunable which requires the use of nonlinear optical and Laser tunable technology. It systematically summarizes and integrates the analysis of international achievements within the last 20 years in this field."
Berlin : [Springer, ], 2012
e20425004
eBooks  Universitas Indonesia Library
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Folli, Viola
"This text provides a comprehensive investigation of the role of disorder in the nonlinear optical propagation both in transparent media and lasers. Eventually, disorder promotes and enhances complex nonlinear dynamics opening new perspectives in applied research driven by the processes of localization of the electromagnetic field. The first experimental study of laser emission in granular media unveils how randomness magnifies and largely affect laser-matter interactions.
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Dordrecht: [Springer, ], 2012
e20425275
eBooks  Universitas Indonesia Library
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Laud, B.B.
Jakarta: UI-Press, 1988
621.366 LAU lt
Buku Teks  Universitas Indonesia Library
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"This new edition features numerous updates and additions. Especially 4 new chapters on fiber optics, integrated optics, frequency combs and Interferometry reflect the changes since the first edition.
In addition, major complete updates for the chapters, optical materials and their properties, optical detectors, nanooptics, and optics far beyond the diffraction limit. "
Berlin: Springer, 2012
e20424690
eBooks  Universitas Indonesia Library
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Bree, Carsten
"This thesis provides deep insights into currently controversial questions in laser filamentation, a highly complex phenomenon involving nonlinear optical effects and plasma physics. First, based on the concrete picture of a femtosecond laser beam which self-pinches its radial intensity distribution, the thesis delivers a novel explanation for the remarkable and previously unexplained phenomenon of pulse self-compression in filaments. Moreover, the work addresses the impact of a non-adiabatic change of both nonlinearity and dispersion on such an intense femtosecond pulse transiting from a gaseous dielectric material to a solid one. Finally, and probably most importantly, the author presents a simple and highly practical theoretical approach for quantitatively estimating the influence of higher-order nonlinear optical effects in optics. These results shed new light on recent experimental observations, which are still hotly debated and may completely change our understanding of filamentation, causing a paradigm change concerning the role of higher-order nonlinearities in optics."
Berlin : Springer, 2012
e20424823
eBooks  Universitas Indonesia Library
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Young, Matt
Berlin: Springer-Verlag, 1986
621.36 YOU o
Buku Teks  Universitas Indonesia Library
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Mudzakkir Dioktyanto
"Gangguan penglihatan merupakan permasalahan yang sering ditemui di masyarakat dimana dapat disembuhkan total melalui operasi menggunakan laser. Sumber laser yang sering digunakan bersumber dari keramik transparan dengan material YAG. Namun, sintesis dari material YAG memerlukan temperatur 1600oC yang mana memerlukan energi yang tinggi. Sehingga, dalam penelitian ini, akan dikaji pengaruh ukuran partikel bahan awal dan proses aktivasi mekanik terhadap proses sintesis yttrium aluminium garnet (YAG). Studi yang dilakukan meliputi karakterisasi bahan awal secara komprehensif, melihat pengaruh perbedaan bahan awal pada saat proses pencampuran, serta mengkaji sifat termal sampel dengan ukuran bahan awal yang berbeda dan proses pencampuran yang berbeda. Karakterisasi yang dilakukan meliputi particle size analyzer, x-ray diffraction, x-ray fluorescence, scanning electron microscope, dan thermogravimetry analysis. Bahan awal yang digunakan yaitu alumina dengan 2 ukuran berbeda yang memiliki kemurnian rendah dan yttria dengan kemurnian tinggi. Proses pencampuran manual dan milling dapat menghasilkan perbedaan yang signifikan pada nilai ukuran partikel dan ukuran kristalit setelah proses pencampuran. Akan tetapi, perbedaan ukuran bahan awal yang dicampur tidak berpengaruh terhadap hasil pencampuran. Analisis sifat termal menunjukkan perbedaan antara pencampuran manual dengan proses milling, di mana temperatur terjadinya reaksi setelah melaui proses milling menjadi lebih rendah. Di samping itu, hasil XRD pada pada sampel dengan proses pencampuran berbeda menunjukkan perbedaan yang sangat signifikan. Pada sampel pencampuran manual, hanya terbentuk fasa yttrium aluminium monoklinik (YAM) dengan sisa yttria dan alumina yang tidak bereaksi pada temperatur 1100oC. Di samping itu, milling menggunakan media alumina, juga hanya membentuk fasa yttrium aluminium perovskit (YAP) dengan fasa minor YAM dan alumina pada saat dipanaskan pada temperatur 1100oC. Di sisi lain, dengan milling menggunakan media stainless steel, terbentuk fasa YAG pada temperatur 1100oC dengan pengotor berupa alumina yang tidak bereaksi. Rute reaksi sintesis YAG pada penelitian ini berbeda dengan umumnya di mana terbentuk fasa sekunder YFeO3 terlebih dahulu, kemudian bereaksi lebih lanjut dan membentuk YAG. Berdasarkan hasil yang didapatkan, ukuran partikel tidak memiliki pengaruh signifikan terhadap pembentukan fasa YAG. Di sisi lain, proses milling menggunakan media stainless steel secara signifikan dapat mengurangi temperatur sintesis dari YAG dari 1600oC menjadi 1100oC. Dengan adanya penurunan temperatur sintesis ini, diharapkan pengembangan material YAG sebagai solid-state laser semakin berkembang dan dapat digunakan pada bidang medis.

Visual disturbance problem is occurred in the society frequently. This illness can be completely cured through surgery using laser which usually used are made of transparent ceramic with YAG material. However, the synthesis of YAG material requires a temperature of 1600oC which requires high energy. So, in this research, the effect of particle size of raw material and mechanical activation process on the synthesis of yttrium aluminum garnet (YAG) had been studied. The studies were consisted about three part, there are: comprehensive characterization of raw materials, observe the effect of mixing and milling process to the materials, as well as investigate the thermal properties of the samples with different sizes of raw materials and different methods. Therefore, particle size analyzer, x-ray diffraction, x-ray fluorescence, scanning electron microscopy, and thermogravimetric analysis were used as characterization instruments. The obtained data showed that the raw materials used were alumina with two different sizes which have low purity and yttria with high purity. Moreover, manual mixing and milling processes could produce significant differences in particle size and crystallite size after the process. However, the difference in the size of the raw material mixed did not affect the mixing result. Then, analysis of thermal properties showed the difference between manual mixing and the milling process, where the reaction temperature of YAG after the milling process became lower. In addition, the XRD results on samples with different mixing processes showed a very significant difference which in the manual mixed sample, only monoclinic yttrium aluminum (YAM) was formed with the remaining unreacted yttria and alumina at 1100oC. In addition, milling using alumina media only formed yttrium aluminum perovskite (YAP) phase with YAM and alumina minor phases when heated at 1100oC. On the other hand, when stainless steel media was used, a YAG phase was formed at a temperature of 1100oC with an impurity in the form of unreacted alumina. The reaction route for YAG synthesis in this study was different from that in general where the secondary phase of YFeO3 was formed first. Then, this secondary phase reacted further with the remaining alumina and finally formed YAG phase. Based on the results obtained, the particle size did not have a significant effect on the formation of the YAG phase. But, the milling process by using stainless steel media could significantly reduce the synthesis temperature of YAG from 1600oC to 1100oC. Therefore, this synthesis temperature decrease hopefully will accelerate the development of YAG materials as solid-state lasers so that it can be used in the medical field."
Depok: Fakultas Teknik Universitas Indonesia, 2022
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UI - Tesis Membership  Universitas Indonesia Library
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Zhigang, Chen, editor
"Nonlinear photonics and novel optical phenomena contains contributed chapters from leading experts in nonlinear optics and photonics, and provides a comprehensive survey of fundamental concepts as well as hot topics in current research on nonlinear optical waves and related novel phenomena. The book covers self-accelerating airy beams, integrated photonics based on high index doped-silica glass, linear and nonlinear spatial beam dynamics in photonic lattices and waveguide arrays, the theory of polariton solitons in semiconductor microcavities, and terahertz waves.
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New York: [Springer, ], 2012
e20425002
eBooks  Universitas Indonesia Library
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New Delhi : Narosa Publishing House, 1990
535.84 LAS
Buku Teks  Universitas Indonesia Library
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