CHIRAL POLYMER PHOTODETECTOR
... 1.1.3.4 Polymer as photoconductor material...................................................................... 20 1.2 Essential characteristics of photodetector ............................................................................ 23 1.2.1 Relationship between photodetector and solar cell . ...
... 1.1.3.4 Polymer as photoconductor material...................................................................... 20 1.2 Essential characteristics of photodetector ............................................................................ 23 1.2.1 Relationship between photodetector and solar cell . ...
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... have been designed and evaluated to investigate the feasibility of OCT for the clinical assessment of pathology of a variety of non-transparent tissue in vivo. Linear and rotational scanning catheters Since optical coherence tomography is fiber optically based, it can be easily integrated into a wid ...
... have been designed and evaluated to investigate the feasibility of OCT for the clinical assessment of pathology of a variety of non-transparent tissue in vivo. Linear and rotational scanning catheters Since optical coherence tomography is fiber optically based, it can be easily integrated into a wid ...
Aalborg Universitet Photonic crystal distributed feedback fiber lasers with Bragg gratings
... N THE recent few years a new class of optical fibers based on photonic crystal technology has been suggested in the literature [1]–[11]. In these fibers the single-mode properties and the intensity distribution for the guided modes differs considerably from the standard step-index fiber. In particul ...
... N THE recent few years a new class of optical fibers based on photonic crystal technology has been suggested in the literature [1]–[11]. In these fibers the single-mode properties and the intensity distribution for the guided modes differs considerably from the standard step-index fiber. In particul ...
engineering of complex optical fields and its
... Generation of optical fields with complex spatial distribution in the cross section is of great interest in application areas where exotic optical fields are desired, including particle manipulation, optical nanofabrication, beam shaping and optical imaging. The dissertation is organized in two part ...
... Generation of optical fields with complex spatial distribution in the cross section is of great interest in application areas where exotic optical fields are desired, including particle manipulation, optical nanofabrication, beam shaping and optical imaging. The dissertation is organized in two part ...
Active Plasmonics: Surface Plasmon Interaction With Optical Emitters
... favors higher modal gain. However, when decreasing the spacing between individual QWs and their overall distance from the metal film, a considerable decrease in performance could be expected due to enhanced spontaneous emission into lossy surface waves (LSWs) and reduced carrier confinement, respect ...
... favors higher modal gain. However, when decreasing the spacing between individual QWs and their overall distance from the metal film, a considerable decrease in performance could be expected due to enhanced spontaneous emission into lossy surface waves (LSWs) and reduced carrier confinement, respect ...
Atom-photon interactions
... utilizes parallel on-chip lithographic fabrication technology. This thesis presents early investigations of this emerging transition, focusing on three specific atom-nanophotonic platforms or systems using microtoroidal resonators, nano-optical fibers, and nanophotonic crystals, all of which involve ...
... utilizes parallel on-chip lithographic fabrication technology. This thesis presents early investigations of this emerging transition, focusing on three specific atom-nanophotonic platforms or systems using microtoroidal resonators, nano-optical fibers, and nanophotonic crystals, all of which involve ...
sensors Chemical Sensing Using Fiber Cavity Ring-Down Spectroscopy
... cavity ring-down spectrometers the optical loss is changed by filling the cavity, at least in part, with an absorber, which can then be quantified. Most CRD spectrometers are designed for very sensitive gas absorption measurements and have volumes of tens to hundreds of milliliters. Measurements on ...
... cavity ring-down spectrometers the optical loss is changed by filling the cavity, at least in part, with an absorber, which can then be quantified. Most CRD spectrometers are designed for very sensitive gas absorption measurements and have volumes of tens to hundreds of milliliters. Measurements on ...
Optimally designed narrowband guided
... characteristics. Indeed, for filter design that must meet stringent performance criteria that include filter bandwidth, out-of-band rejection, and filter efficiency, these considerations become critical for determining whether or not a design is feasible with a set of materials. Without the effects ...
... characteristics. Indeed, for filter design that must meet stringent performance criteria that include filter bandwidth, out-of-band rejection, and filter efficiency, these considerations become critical for determining whether or not a design is feasible with a set of materials. Without the effects ...
Continuous-wave optical parametric oscillators and frequency conversion sources from
... Ebrahim-Zadeh for his guidance, advice, and invaluable ideas, without which this thesis would not have been possible. He has not only supervised me, but has also provided me the enourmous encouragement and support, that gave me enthusiasm and confidence to face a new challenge at any time. His vast ...
... Ebrahim-Zadeh for his guidance, advice, and invaluable ideas, without which this thesis would not have been possible. He has not only supervised me, but has also provided me the enourmous encouragement and support, that gave me enthusiasm and confidence to face a new challenge at any time. His vast ...
Full text in DIVA
... black pixels, no significant differences were found in the reJournal of Biomedical Optics ...
... black pixels, no significant differences were found in the reJournal of Biomedical Optics ...
Color-changing and color-tunable photonic bandgap fiber textiles
... discovered functionalities we highlight real-time color-changing capability of PBG fiber-based textiles with potential applications in dynamic signage and environmentally adaptive coloration. As it stands from their name, photonic textiles integrate light emitting or light processing elements into m ...
... discovered functionalities we highlight real-time color-changing capability of PBG fiber-based textiles with potential applications in dynamic signage and environmentally adaptive coloration. As it stands from their name, photonic textiles integrate light emitting or light processing elements into m ...
Application note: Stripping cleaving and coupling to
... aligned with sub-µm precision to obtain maximum transmission. Splices to single mode fibers with large modefield diameter required very low angle cleaves and attention must be paid to the cleaving process as described above. For solid fiber splices, a high temperature splice process is used to comp ...
... aligned with sub-µm precision to obtain maximum transmission. Splices to single mode fibers with large modefield diameter required very low angle cleaves and attention must be paid to the cleaving process as described above. For solid fiber splices, a high temperature splice process is used to comp ...
“Superluminal” Pulse Propagation Dynamics by George M. Gehring
... Kramers-Kronig relations. It is clear from the figure that a very large and positive group index occurs in the region of strong linear dispersion in n. This region of slow-light propagation is flanked by fast-light regions due to strong normal dispersion in the wings of the refractive index dispersion ...
... Kramers-Kronig relations. It is clear from the figure that a very large and positive group index occurs in the region of strong linear dispersion in n. This region of slow-light propagation is flanked by fast-light regions due to strong normal dispersion in the wings of the refractive index dispersion ...
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... As I wrote my Ph.D. thesis, I realized that my time at MIT was one of the most precious and exciting moments in my life. Although being a Ph.D. student at MIT has not always been easy and straightforward to me, there has been so much help and support around. First, I would like to thank Wolfgang Ket ...
... As I wrote my Ph.D. thesis, I realized that my time at MIT was one of the most precious and exciting moments in my life. Although being a Ph.D. student at MIT has not always been easy and straightforward to me, there has been so much help and support around. First, I would like to thank Wolfgang Ket ...
Novel Metrology Techniques Resolve Strong-Field
... Laser pulses can observe and control electronic properties of matter on the time scale of the optical field cycle [1]. In case the transient field strength reaches values just below the damage threshold of the material, the polarization response of the excited system depends on the field oscillation ...
... Laser pulses can observe and control electronic properties of matter on the time scale of the optical field cycle [1]. In case the transient field strength reaches values just below the damage threshold of the material, the polarization response of the excited system depends on the field oscillation ...
Elaboration and optimization of tellurite-based
... Tellurite-based oxide glasses have been investigated as promising materials for Raman gain applications, due to their good linear and nonlinear optical properties and their wide transparency windows in the near- and midwave infrared spectral region. Furthermore, their interesting thermal properties, ...
... Tellurite-based oxide glasses have been investigated as promising materials for Raman gain applications, due to their good linear and nonlinear optical properties and their wide transparency windows in the near- and midwave infrared spectral region. Furthermore, their interesting thermal properties, ...
Silicon photonics
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups such as that of Prof. Michal Lipson, who see it is a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips.The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light.Silicon waveguides are also of great academic interest, due to their ability to support exotic nonlinear optical phenomena such as soliton propagation.