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Organic Semiconductor Lasers With Two Dimensional Distributed Feedback
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Book Synopsis Low Threshold Organic Semiconductor Lasers by : Yue Wang
Download or read book Low Threshold Organic Semiconductor Lasers written by Yue Wang and published by Springer Science & Business Media. This book was released on 2013-10-01 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis focuses on two areas - the development of miniature plastic lasers that can be powered by LEDs, and the application of these lasers as highly sensitive sensors for vapours of nitroaromatic explosives (e.g. TNT). Polymer lasers are extremely compact visible lasers; the research described in the thesis is groundbreaking, driving forward the technology and physical understanding to allow these lasers to be routinely pumped by a single high-power LED. A notable advance in the work is the demonstration of nanoimprinted polymer lasers, which exhibit the world's lowest pump threshold densities by two orders of magnitude. The thesis also advances the application of these compact, novel lasers as highly sensitive detectors of explosive vapours, demonstrating that rapid detection can be achieved when microporous polymers are used. This work also demonstrates a prototype CMOS-based microsystem sensor for explosive vapours, exploiting a new detection approach.
Book Synopsis Organic Semiconductor Lasers and Tailored Nanostructures for Raman Spectroscopy by : Liu, Xin
Download or read book Organic Semiconductor Lasers and Tailored Nanostructures for Raman Spectroscopy written by Liu, Xin and published by KIT Scientific Publishing. This book was released on 2015-06-19 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents the application of organic semiconductor distributed feedback laser as free-space excitation source in Raman spectroscopy. Surface-enhanced Raman scattering effect is exploited to improve the detection sensitivity. The SERS conditionis achiedved by using substrates consisting of gold-coated polymeric nanopillar arrays. The organic-laser-excited SERS measurements are applied to verify the concentration variation of biomolecule adenosine in aqueous solutions.
Book Synopsis Organic Solid-State Lasers by : Sébastien Forget
Download or read book Organic Solid-State Lasers written by Sébastien Forget and published by Springer. This book was released on 2013-07-03 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic lasers are broadly tunable coherent sources, potentially compact, convenient and manufactured at low-costs. Appeared in the mid 60’s as solid-state alternatives for liquid dye lasers, they recently gained a new dimension after the demonstration of organic semiconductor lasers in the 90's. More recently, new perspectives appeared at the nanoscale, with organic polariton and surface plasmon lasers. After a brief reminder to laser physics, a first chapter exposes what makes organic solid-state organic lasers specific. The laser architectures used in organic lasers are then reviewed, with a state-of-the-art review of the performances of devices with regard to output power, threshold, lifetime, beam quality etc. A survey of the recent trends in the field is given, highlighting the latest developments with a special focus on the challenges remaining for achieving direct electrical pumping of organic semiconductor lasers. A last chapter covers the applications of organic solid-state lasers.
Book Synopsis Organic Lasers and Organic Photonics by : DUARTE
Download or read book Organic Lasers and Organic Photonics written by DUARTE and published by Iph001. This book was released on 2018-12-04 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low Threshold Organic Thin Film Laser Devices by : Christian Karnutsch
Download or read book Low Threshold Organic Thin Film Laser Devices written by Christian Karnutsch and published by Cuvillier Verlag. This book was released on 2007 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ultrafast Dynamics and Laser Action of Organic Semiconductors by : Zeev Valy Vardeny
Download or read book Ultrafast Dynamics and Laser Action of Organic Semiconductors written by Zeev Valy Vardeny and published by CRC Press. This book was released on 2009-01-21 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spurred on by extensive research in recent years, organic semiconductors are now used in an array of areas, such as organic light emitting diodes (OLEDs), photovoltaics, and other optoelectronics. In all of these novel applications, the photoexcitations in organic semiconductors play a vital role. Exploring the early stages of photoexcitations that
Book Synopsis Introduction to Organic Electronic Devices by : Guangye Zhang
Download or read book Introduction to Organic Electronic Devices written by Guangye Zhang and published by Springer Nature. This book was released on 2022-10-13 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively describes organic electronic devices developed in the past decades. It not only covers the mainstream devices including organic light emitting diodes (OLEDs), organic photovoltaics (OPVs), and organic thin-film transistors (OTFTs) but also includes devices of recent interest such as organic immune transistors, organic photocatalysis devices, and themoelectrical devices. The book starts from the introduction of basic theory of organic semiconductor materials and devices, which acquaints the readers with the concepts of each type of device described in the following chapters. It also discusses the working principles, device layout, and fabrication process of these devices. The book is intended for undergraduate and postgraduate students who are interested in organic electronics, researchers/engineers working in the field of organic electronic devices/systems.
Book Synopsis Device Architecture and Materials for Organic Light-Emitting Devices by : Sarah Schols
Download or read book Device Architecture and Materials for Organic Light-Emitting Devices written by Sarah Schols and published by Springer Science & Business Media. This book was released on 2011-05-10 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Device Architecture and Materials for Organic Light-Emitting Devices focuses on the design of new device and material concepts for organic light-emitting devices, thereby targeting high current densities and an improved control of the triplet concentration. A new light-emitting device architecture, the OLED with field-effect electron transport, is demonstrated. This device is a hybrid between a diode and a field-effect transistor. Compared to conventional OLEDs, the metallic cathode is displaced by one to several micrometers from the light-emitting zone, reducing optical absorption losses. The electrons injected by the cathode accumulate at an organic heterojunction and are transported to the light-emission zone by field-effect. High mobilities for charge carriers are achieved in this way, enabling a high current density and a reduced number of charge carriers in the device. Pulsed excitation experiments show that pulses down to 1 μs can be applied to this structure without affecting the light intensity, suggesting that pulsed excitation might be useful to reduce the accumulation of triplets in the device. The combination of all these properties makes the OLED with field-effect electron transport particularly interesting for waveguide devices and future electrically pumped lasers. In addition, triplet-emitter doped organic materials, as well as the use of triplet scavengers in conjugated polymers are investigated.
Book Synopsis Organic Electroluminescence by : Zakya H. Kafafi
Download or read book Organic Electroluminescence written by Zakya H. Kafafi and published by CRC Press. This book was released on 2018-10-03 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic light-emitting diode(OLED) technology has achieved significant penetration in the commercial market for small, low-voltage and inexpensive displays. Present and future novel technologies based on OLEDs involve rigid and flexible flat panel displays, solid-state lighting, and lasers. Display applications may range from hand-held devices to large flat panel screens that can be rolled up or hung flat on a wall or a ceiling. Organic Electroluminescence gives an overview of the on-going research in the field of organic light-emitting materials and devices, covering the principles of electroluminescence in organic thin films, as well as recent trends, current applications, and future potential uses. The book begins by giving a background of organic electroluminescence in terms of history and basic principles. It offers details on the mechanism(s) of electroluminescence in thin organic films. It presentsin-depth discussions of the parameters that control the external electroluminescence quantum efficiency including the photoluminescence quantum yield, the light-output coupling factor, carrier/charge injection and transport, and electron and hole recombination processes in organic semiconductors. The authors address the design and the characterization of amorphous charge transport materials with high glass transition temperatures, light-emitting small molecules and conjugated polymers. The book covers state-of-the-art concepts and technologies such as fluorescent and phosphorescent OLEDs, various approaches for patterning organics, and active matrix organic emissive displays including their back panel thin film transistors and pixel electronics. It concludes by summarizing future directions for OLEDs in organic light-emitting displays, large area distributed solid state light sources, and lasers using organic thin films, nanostructures, and photonic crystals. Organic Electroluminescence is an excellent resource and reference for stu
Download or read book Organic Lasers written by Marco Anni and published by CRC Press. This book was released on 2018-05-24 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past 30 years, organic conjugated molecules have received a lot of attention in research because of their unique combination of active properties typical of semiconductors and the technological appeal typical of plastic materials. Among the different applications proposed for organic materials, organic lasers are quickly approaching the performance required in real devices, while research on novel active materials is still ongoing. The book covers the basic aspects of the measurement techniques of optical gain and amplified spontaneous emission (ASE) in organic films as well as the photophysics of organic materials that can be understood using ASE measurements. It reviews the recent advances in the development of new active materials for organic lasers as well as the actual state of the art of scattering-assisted random lasers and of strongly coupled organic microcavities, both promising interesting developments in the near future. Finally, it gives a detailed review of the state of the art of the organic lasers actually closest to real applications, namely external cavity lasers and distributed feedback lasers. The book is unique that it covers basic aspects, technological aspects, and systems, which are still a subject of basic science research.
Book Synopsis Photochemical Behavior of Multicomponent Polymeric-based Materials by : Dan Rosu
Download or read book Photochemical Behavior of Multicomponent Polymeric-based Materials written by Dan Rosu and published by Springer. This book was released on 2016-11-21 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers in-depth insights into the photochemical behavior of multicomponent polymeric-based materials, with a particular emphasis on the photodegradation and photostabilization of these materials. Studying various classes of materials bases such as polysaccharides, wood, synthetic polymers, rubber blends, and nanocomposites, it offers a valuable reference source for graduate and postgraduate students, engineering students, research scholars and polymer engineers working in industry.
Book Synopsis Organic Dye-Doped PMMA Thin-Film Laser by : Pen Yiao Ang
Download or read book Organic Dye-Doped PMMA Thin-Film Laser written by Pen Yiao Ang and published by Cuvillier Verlag. This book was released on 2021-10-26 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic dye laser stands a chance to become the next generation of the light source. It is very interesting because organic dyes can cover a wide range of the pectrum of visible light. To realise organic solid-state laser, several organic dyes can be doped in a polymer matrix. One of the examples of low-priced polymer is poly(methyl methacrylate) (PMMA). However, the study of PMMA as a polymer matrix for organic dyes as a thin-film laser was not extensive. This thesis focused on the feasibility of organic dye-doped PMMA as a thin-film laser.
Book Synopsis Solution-Processed Organic Light-Emitting Devices by : Guohua Xie
Download or read book Solution-Processed Organic Light-Emitting Devices written by Guohua Xie and published by Elsevier. This book was released on 2023-08-29 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solution-Processed Organic Light-Emitting Devices provides a comprehensive reference on the principles and advances in materials design, device structures, and processing technologies of organic light-emitting diodes (OLEDs). Most importantly, the book analyses the dynamics of thin-film growth from solutions such as solvent orthogonalization, coffee-ring effects, and interfacial adhesion. Exciton generation and utilization, host–guest energy transfer, and interfacial interaction in the solution-processed films are considered with the material and device design to maximize the electroluminescent performance of OLEDs.The book reviews the materials, devices, and technologies dedicated to solution-processed thin-film devices, which are not only applicable to OLEDs but may be adapted to other emerging semiconducting devices due to the similarity in methods (for instance, quantum-dot LEDs and solar cells, and perovskite-based LEDs/photovoltaics/detectors).This book is suitable for researchers in academia and industry working in the materials science and engineering, chemistry, and physics disciplines. - Discusses the most relevant and emerging solution-processable materials for OLED applications - Reviews device engineering to address defects, charge transport, and exciton generation in fabricated solution-processable thin films - Provides the methods to grow multilayered thin films from solutions with organic semiconductors, with particular attention to new technologies to overcome interfacial mixing effects
Book Synopsis Semiconducting Polymer Composites by : Xiaoniu Yang
Download or read book Semiconducting Polymer Composites written by Xiaoniu Yang and published by John Wiley & Sons. This book was released on 2012-10-05 with total page 553 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of Semiconducting Polymer Composites describes the principles and concepts of semiconducting polymer composites in general, addressing electrical conductivity, energy alignment at interfaces, morphology, energy transfer, percolation theory and processing techniques. In later chapters, different types of polymer composites are discussed: mixtures of semiconducting and insulating or semiconducting and semiconducting components, respectively. These composites are suitable for a variety of applications that are presented in detail, including transistors and solar cells, sensors and detectors, diodes and lasers as well as anti-corrosive and anti-static surface coatings.
Book Synopsis Photonic Bandgap Structures Novel Technological Platforms for Physical, Chemical and Biological Sensing by : Marco Pisco
Download or read book Photonic Bandgap Structures Novel Technological Platforms for Physical, Chemical and Biological Sensing written by Marco Pisco and published by Bentham Science Publishers. This book was released on 2012-07-27 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This E-Book covers the research and the development of a novel generation of photonic devices for sensing applications. The E-Book starts with a brief review of basic photonic crystal (PhC) structure related concepts and describes the numerical and technological tools useful in the design and fabrication of devices based on PhCs. Next, the E-Book provides a selection of crossover topics emerging in the scientific community as breaking through researches, technologies and sciences for the development of novel technological platforms for physical, chemical and biological sensing. The E-Book ends with a description of the main PhC sensors to date by representing many of the exciting sensing applications that utilize photonic crystal structures.
Book Synopsis Recent Trends in Computational Photonics by : Arti Agrawal
Download or read book Recent Trends in Computational Photonics written by Arti Agrawal and published by Springer. This book was released on 2017-11-01 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book brings together the recent cutting-edge work on computational methods in photonics and their applications. The latest advances in techniques such as the Discontinuous Galerkin Time Domain method, Finite Element Time Domain method, Finite Difference Time Domain method as well as their applications are presented. Key aspects such as modelling of non-linear effects (Second Harmonic Generation, lasing in fibers, including gain nonlinearity in metamaterials), the acousto-optic effect, and the hydrodynamic model to explain electron response in nanoplasmonic structures are included. The application areas covered include plasmonics, metamaterials, photonic crystals, dielectric waveguides, fiber lasers. The chapters give a representative survey of the corresponding area.
Book Synopsis Handbook of Lasers by : Marvin J. Weber
Download or read book Handbook of Lasers written by Marvin J. Weber and published by CRC Press. This book was released on 2019-04-30 with total page 1224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lasers continue to be an amazingly robust field of activity. Anyone seeking a photon source is now confronted with an enormous number of possible lasers and laser wavelengths to choose from, but no single, comprehensive source to help them make that choice. The Handbook of Lasers provides an authoritative compilation of lasers, their properties, and original references in a readily accessible form. Organized by lasing media-solids, liquids, and gases-each section is subdivided into distinct laser types. Each type carries a brief description, followed by tables listing the lasing element or medium, host, lasing transition and wavelength, operating properties, primary literature citations, and, for broadband lasers, reported tuning ranges. The importance and value of the Handbook of Lasers cannot be overstated. Serving as both an archive and as an indicator of emerging trends, it reflects the state of knowledge and development in the field, provides a rapid means of obtaining reference data, and offers a pathway to the literature. It contains data useful for comparison with predictions and for developing models of processes, and may reveal fundamental inconsistencies or conflicts in the data.
