Applications of Pulse Shaping in the Mid-infrared PDF Download
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Author: David B. Strasfeld
Publisher:
ISBN:
Category :
Languages : en
Pages : 209
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Book Description
Author: David B. Strasfeld
Publisher:
ISBN:
Category :
Languages : en
Pages : 209
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Book Description
Author: Kornaszewski Lukasz
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Majid Ebrahim-Zadeh
Publisher: Springer Science & Business Media
ISBN: 140206439X
Category : Science
Languages : en
Pages : 630
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Book Description
Covering fundamental principles and the state of the art, this is a collection of reviews from experts in mid-infrared (mid-IR) coherent sources. Among the sources covered are optical parametric oscillators, difference frequency generators, and the most recent broadband crystalline, quantum cascade, and fiber lasers. The authors show how advances in mid-IR science and technology make these sources indispensable for a variety of applications.
Author: Naveed A. Naz
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
This thesis reports experimental indirect spectral transfer of shaped pulses from the near to mid-infrared via the use of an optical parametric oscillator. It was shown that good spectral fidelity of transfer can be achieved by making suitable adjustments to the OPO. The issues affecting the transfer process are discussed and experimental results are compared with existing theory. The shaping of the nearinfrared pulses was performed using a zero dispersion pulse shaper and a computer controlled spatial light modulator. A suitable search algorithm was written and, with the use of appropriate computer hardware, allowed a closed-feedback loop to be implemented. The computer controlled hardware was demonstrated to be able to autonomously optimise simple experiments in the mid-infrared and optimise the threshold of an optical parametric oscillator.
Author: Nathalie Nagl
Publisher: Springer Nature
ISBN: 3030897540
Category : Science
Languages : en
Pages : 155
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Book Description
This thesis presents the first successful realization of a compact, low-noise, and few-cycle light source in the mid-infrared wavelength region. By developing the technology of pumping femtosecond chromium-doped II-VI laser oscillators directly with the emission of broad-stripe single-emitter laser diodes, coherent light was generated with exceptionally low amplitude noise — crucial for numerous applications including spectroscopy at high sensitivities. Other key parameters of the oscillator's output, such as pulse duration and output power, matched and even surpassed previous state-of-the-art systems. As a demonstration of its unique capabilities, the oscillator's powerful output was used to drive — without further amplification — the nonlinear generation of coherent mid-infrared light spanning multiple octaves. The resulting table-top system uniquely combines high brilliance and ultrabroad spectral bandwidth in the important mid-infrared spectral range. The rapid development of this technology is comprehensively and lucidly documented in this PhD thesis. Together with a thorough review of literature and applications, and an extensive analysis of the theoretical foundations behind ultrafast laser oscillators, the thesis will serve as a valuable reference for the construction of a new generation of mid-infrared light sources.
Author: Sang-Hee Shim
Publisher:
ISBN:
Category :
Languages : en
Pages : 170
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Book Description
Author: Guglielmo Lanzani
Publisher: CRC Press
ISBN: 1420017519
Category : Science
Languages : en
Pages : 286
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Book Description
Remarkable developments in the spectroscopy field regarding ultrashort pulse generation have led to the possibility of producing light pulses ranging from 50 to5 fs and frequency tunable from the near infrared to the ultraviolet range. Such pulses enable us to follow the coupling of vibrational motion to the electronic transitions in molecules and
Author: Eric Tournié
Publisher: Woodhead Publishing
ISBN: 0081027389
Category : Technology & Engineering
Languages : en
Pages : 754
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Book Description
Mid-infrared Optoelectronics: Materials, Devices, and Applications addresses the new materials, devices and applications that have emerged over the last decade, along with exciting areas of research. Sections cover fundamentals, light sources, photodetectors, new approaches, and the application of mid-IR devices, with sections discussing LEDs, laser diodes, and quantum cascade lasers, mid-infrared optoelectronics, emerging research areas, dilute bismide and nitride alloys, Group-IV materials, gallium nitride heterostructures, and new nonlinear materials. Finally, the most relevant applications of mid-infrared devices are reviewed in industry, gas sensing, spectroscopy, and imaging. This book presents a key reference for materials scientists, engineers and professionals working in R&D in the area of semiconductors and optoelectronics. - Provides a comprehensive overview of mid-infrared photodetectors and light sources and the latest materials and devices - Reviews emerging areas of research in the field of mid-infrared optoelectronics, including new materials, such as wide bandgap materials, chalcogenides and new approaches, like heterogeneous integration - Includes information on the most relevant applications in industry, like gas sensing, spectroscopy and imaging
Author: En-Kuang Tien
Publisher:
ISBN: 9781124187006
Category :
Languages : en
Pages : 121
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Book Description
Silicon photonics is a subject of growing interest with the potential of delivering planar electro-optical devices with chip scale integration. The past ten years have provided new developments in this area including novel devices utilizing the linear, nonlinear, and semiconductor behaviors of silicon. This thesis is dedicated to the investigation of nonlinear properties of silicon relevant to chip scale planar optical devices. In particular, this thesis is focused on utilizing silicon nonlinearities to demonstrate ultrafast pulse generation, ultrafast pulse characterization, and wavelength conversion suitable for long wavelength applications. One of the impediments of silicon photonics is the presence of nonlinear losses. Indeed, nonlinear losses mitigate the development of silicon based laser and amplifiers. The first part of this research investigates the transient behavior of these nonlinear losses, two photon absorption (TPA) and free-carrier effects, and utilizes them for ultrafast pulse generation and mode-locking. Particular achievements include identification of the dominant nonlinear losses and demonstration of mode-locked lasers. As an extension of this research, a dual-wavelength laser is demonstrated using Raman scattering in silicon. In the second part of this work, a chip-scale pulse characterization method utilizing Kerr nonlinearity in silicon is established and a pulse retrieval algorithm is optimized for chip-scale devices. This is the first frequency resolved optical gating (FROG) system demonstrated in silicon, which shows the ability to measure ultrafast pulses without the phase matching requirement. With the short interaction length and the low dispersion, dispersion engineered waveguides can improve the resolution over a wide bandwidth. In the last part of this thesis, wavelength conversion capability via four-wave-mixing at mid-infrared (2micron-6micron) is investigated since TPA is negligible for wavelengths beyond 2℗æm. In particular, Kerr effect and waveguide design are studied to accomplish wavelength conversions in mid-infrared. Since conventional cladding material, silica, is opaque in mid-infrared, the needs for new waveguide designs and new materials are highlighted and the potential candidate materials are studied. The study shows that silicon-based wavelength conversion can increase the capabilities of mid-infrared application by converting the mature detection and source at communication wavelengths to mid-infrared wavelengths.
Author: Dheeraj Kumar Singh
Publisher: Springer Nature
ISBN: 9813360844
Category : Technology & Engineering
Languages : en
Pages : 663
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Book Description
The book highlights recent developments in the field of spectroscopy by providing the readers with an updated and high-level of overview. The focus of this book is on the introduction to concepts of modern spectroscopic techniques, recent technological innovations in this field, and current examples of applications to molecules and materials relevant for academia and industry. The book will be beneficial to researchers from various branches of science and technology, and is intended to point them to modern techniques, which might be useful for their specific problems. Spectroscopic techniques, that are discussed include, UV-Visible absorption spectroscopy, XPS, Raman spectroscopy, SERS, TERS, CARS, IR absorption spectroscopy, SFG, LIBS, Quantum cascade laser (QCL) spectroscopy, fluorescence spectroscopy, ellipsometry, cavity-enhanced absorption spectroscopy, such as cavity ring-down spectroscopy (CRDS) and evanescent wave-CRDS both in gas and condensed phases, time-resolved spectroscopy etc. Applications introduced in the different chapters demonstrates the usefulness of the spectroscopic techniques for the characterization of fundamental properties of molecules, e.g. in connection with environmental impact, bio-activity, or usefulness for pharmaceutical drugs, and materials important e.g. for nano-science, nuclear chemistry, or bio-applications. The book presents how spectroscopic techniques can help to better understand substances, which have also great impact on questions of social and economic relevance (environment, alternative energy, etc.).
