Full-text PDF - Research School of Physics and Engineering
... a few basic properties with conventional solitons and differ in a few others. For example, an input beam having a linear-phase gradient in the transverse plane can excite moving solitons, which propagate at an angle to the waveguides. However, as the soliton power is increased, the direction of prop ...
... a few basic properties with conventional solitons and differ in a few others. For example, an input beam having a linear-phase gradient in the transverse plane can excite moving solitons, which propagate at an angle to the waveguides. However, as the soliton power is increased, the direction of prop ...
OPTO - SPIE
... The 3-dB modulation bandwidth and linewidth enhancement factor (LEF) of a semiconductor laser both directly benefit from an increased differential optical, which is typically improved through the use of strain, quantum confinement, or p-type doping in the active region of the device. All of these me ...
... The 3-dB modulation bandwidth and linewidth enhancement factor (LEF) of a semiconductor laser both directly benefit from an increased differential optical, which is typically improved through the use of strain, quantum confinement, or p-type doping in the active region of the device. All of these me ...
Graphene Plasmonic Metasurfaces to Steer Infrared Light www.nature.com/scientificreports Zubin Li
... light can vary from almost –π to π by selecting the width of the graphene ribbons as well as the thickness of the dielectric spacing layer, while the amplitude of reflectivity remains high and only shows moderate variations. These two properties allow us to design a variety of planar graphene phot ...
... light can vary from almost –π to π by selecting the width of the graphene ribbons as well as the thickness of the dielectric spacing layer, while the amplitude of reflectivity remains high and only shows moderate variations. These two properties allow us to design a variety of planar graphene phot ...
Pulse splitting by modulating the thickness of buffer layer of two
... SHOEs with stacks of multiple volume gratings instead of thin gratings are commonly called stratified volume holographic optical elements (SVHOEs) or multilayer volume holographic gratings (MVHGs), which operate within the Bragg diffraction regime. Analysis of MVHG is based on the coupled-wave theor ...
... SHOEs with stacks of multiple volume gratings instead of thin gratings are commonly called stratified volume holographic optical elements (SVHOEs) or multilayer volume holographic gratings (MVHGs), which operate within the Bragg diffraction regime. Analysis of MVHG is based on the coupled-wave theor ...
Rubidium Bose-Einstein Condensates in Optical Lattices Gretchen K
... Bose-Einstein condensates in optical lattices have proven to be a powerful tool for studying a wide variety of physics. In this thesis a series of experiments using optical lattices to manipulate 87 Rb Bose-Einstein condensates are described. A systematic shift of the photon recoil momentum due to t ...
... Bose-Einstein condensates in optical lattices have proven to be a powerful tool for studying a wide variety of physics. In this thesis a series of experiments using optical lattices to manipulate 87 Rb Bose-Einstein condensates are described. A systematic shift of the photon recoil momentum due to t ...
AOK2-UP01 - February 2, 2015
... Through our partnership with Boston Micromachines Corporation (BMC), Thorlabs is pleased to offer BMC's Mini- and Multi- Deformable Micro-electro-mechanical (MEMS) based mirrors as part of our adaptive optics kits. These deformable mirrors (DMs) are ideal for advanced optical wavefront control; they ...
... Through our partnership with Boston Micromachines Corporation (BMC), Thorlabs is pleased to offer BMC's Mini- and Multi- Deformable Micro-electro-mechanical (MEMS) based mirrors as part of our adaptive optics kits. These deformable mirrors (DMs) are ideal for advanced optical wavefront control; they ...
Basic Wavefront Aberration Theory for Optical Metrology
... Airy disk. The distance between the two zero intensity regions on each side of the central maximum is called the Airy disk diameter. For a lens illuminated with collimated light, this Airy disk diameter is given by 2.44 λ f # . For visible light, λ is on the order of 0.5 µm and the Airy disk diamete ...
... Airy disk. The distance between the two zero intensity regions on each side of the central maximum is called the Airy disk diameter. For a lens illuminated with collimated light, this Airy disk diameter is given by 2.44 λ f # . For visible light, λ is on the order of 0.5 µm and the Airy disk diamete ...
light sources for optical fibers
... index gradients. Some involve introducing impurities into thin layers of glass as they are laid down on a substrate. This is not a continuous process since the refractive index within each layer is nearly constant. The resulting variation of refractive index in a fiber resembles that of a series of ...
... index gradients. Some involve introducing impurities into thin layers of glass as they are laid down on a substrate. This is not a continuous process since the refractive index within each layer is nearly constant. The resulting variation of refractive index in a fiber resembles that of a series of ...
Adaptive Control of Ultrashort Laser Pulses for
... mathematical description will be found in the following section. In the early days of lasers a continuous wave (cw) of coherent light with small bandwidth was emitted. Not much later the method of Q-switching was proposed by Hellwarth in 1961 [2] and pulsed laser output not much shorter than 100 ns ...
... mathematical description will be found in the following section. In the early days of lasers a continuous wave (cw) of coherent light with small bandwidth was emitted. Not much later the method of Q-switching was proposed by Hellwarth in 1961 [2] and pulsed laser output not much shorter than 100 ns ...
META`16 Malaga - Spain - META`17, the 8th International
... University of Tehran, and his M.S and Ph.D. degrees from Caltech. He has received several awards for his research including the 2015 Fellow of US National Academy of Inventors (NAI), the 2015 Gold Medal from SPIE (the international society for optics and photonics), the 2015 National Security Scienc ...
... University of Tehran, and his M.S and Ph.D. degrees from Caltech. He has received several awards for his research including the 2015 Fellow of US National Academy of Inventors (NAI), the 2015 Gold Medal from SPIE (the international society for optics and photonics), the 2015 National Security Scienc ...
Evaluation of Optical Formation Measurements on Printing
... different methods have different advantages and disadvantages. The actual formation is measured through β-radiation absorption, but this method is slow, laborious and expensive. Another way is to measure the optical formation, which is based on a transmission of light. This method is faster and less ...
... different methods have different advantages and disadvantages. The actual formation is measured through β-radiation absorption, but this method is slow, laborious and expensive. Another way is to measure the optical formation, which is based on a transmission of light. This method is faster and less ...
Wavefront Aberration - University of Arizona
... Airy disk. The distance between the two zero intensity regions on each side of the central maximum is called the Airy disk diameter. For a lens illuminated with collimated light, this Airy disk diameter is given by 2.44 λ f # . For visible light, λ is on the order of 0.5 µm and the Airy disk diamete ...
... Airy disk. The distance between the two zero intensity regions on each side of the central maximum is called the Airy disk diameter. For a lens illuminated with collimated light, this Airy disk diameter is given by 2.44 λ f # . For visible light, λ is on the order of 0.5 µm and the Airy disk diamete ...
evaluation copy
... connector clockwise until the fitting “clicks” onto the sensor (about one-eighth turn). 5. Display a pressure versus time graph on the data collection system. 6. Obtain two test tubes. Label them “A” and “B”. Place them into a test tube rack. 7. Connect the syringe to the stopper as shown in the dia ...
... connector clockwise until the fitting “clicks” onto the sensor (about one-eighth turn). 5. Display a pressure versus time graph on the data collection system. 6. Obtain two test tubes. Label them “A” and “B”. Place them into a test tube rack. 7. Connect the syringe to the stopper as shown in the dia ...
laser-based fibre-optic sensor for measurement of surface properties
... The optical disk player has comprehensively replaced use o f the mechanical stylus in the music industry In the field o f surface roughness measurement, numerous optical methods have been used in the place o f the mechanical stylus Surface roughness can be measured through the effect o f light scatt ...
... The optical disk player has comprehensively replaced use o f the mechanical stylus in the music industry In the field o f surface roughness measurement, numerous optical methods have been used in the place o f the mechanical stylus Surface roughness can be measured through the effect o f light scatt ...
Two-step DFT propagation - MZA Associates Corporation
... could be placed at different planes, chosen for convenience. They should be chosen such that they both capture all light of interest and, to keep N reasonable, little light not of interest. ...
... could be placed at different planes, chosen for convenience. They should be chosen such that they both capture all light of interest and, to keep N reasonable, little light not of interest. ...
appel a projets recherche 2014 - lumat - Université Paris-Sud
... in space – down to the Å scale – to coherently excite electronic/nuclear wave packets in a controlled manner, and to probe their temporal evolution. These gradients are ideally provided by fully controlled photon beams, from the mid-IR to the XUV range: the manipulation of light pulses is therefore ...
... in space – down to the Å scale – to coherently excite electronic/nuclear wave packets in a controlled manner, and to probe their temporal evolution. These gradients are ideally provided by fully controlled photon beams, from the mid-IR to the XUV range: the manipulation of light pulses is therefore ...
STED Microscopy
... re-excitation by the STED beam. Additionally, long τ STED also avoids unwanted multiphoton processes such as two-photon excitation, which require gigawatts per square centimeter peak intensities. In practice, τ STED ≥ 100 ps has been shown to work best in STED microscopy (Leutenegger, Eggeling, and ...
... re-excitation by the STED beam. Additionally, long τ STED also avoids unwanted multiphoton processes such as two-photon excitation, which require gigawatts per square centimeter peak intensities. In practice, τ STED ≥ 100 ps has been shown to work best in STED microscopy (Leutenegger, Eggeling, and ...
Poster Session Program
... Polyethylene naphthalate (PEN) is a kind of crystalline engineering polymer that can be used in adverse environments such as those at high temperatures. Its rystallinity is an important factor controlling its material properties. Regarding this, the present work examines the possibility of using ter ...
... Polyethylene naphthalate (PEN) is a kind of crystalline engineering polymer that can be used in adverse environments such as those at high temperatures. Its rystallinity is an important factor controlling its material properties. Regarding this, the present work examines the possibility of using ter ...
High-power, continuous-wave optical parametric oscillators
... remote sensing, trace-gas detection, and many more. Development of cw OPOs in singly-resonant oscillator (SRO) configurations, the focus of this thesis, is challenging due to the high-threshold pump power (several watts). In addition, with visible pumping, photorefractive and thermal lensing effects ...
... remote sensing, trace-gas detection, and many more. Development of cw OPOs in singly-resonant oscillator (SRO) configurations, the focus of this thesis, is challenging due to the high-threshold pump power (several watts). In addition, with visible pumping, photorefractive and thermal lensing effects ...
Patterned dielectric membranes designed for optical sensing
... of blood, saliva, urine or spinal fluids, biosensors can be used to discover illnesses at a stage where they are still harmless and treatable. There is also demand for automated desktop appliances or hand held devices, as these can replace labor intensive analysis, lower costs and improve efficiency ...
... of blood, saliva, urine or spinal fluids, biosensors can be used to discover illnesses at a stage where they are still harmless and treatable. There is also demand for automated desktop appliances or hand held devices, as these can replace labor intensive analysis, lower costs and improve efficiency ...
leading, peer-reviewed scientific journal
... (A) of the scattering lunar regolith. We discuss how deviations from this correlation have previously been linked to the so-called ‘Polarimetric Anomaly Parameter’, (Pmax)aA, which was proposed by Shkuratov and others as being related to variations in regolith grain size. We propose a reinterpretati ...
... (A) of the scattering lunar regolith. We discuss how deviations from this correlation have previously been linked to the so-called ‘Polarimetric Anomaly Parameter’, (Pmax)aA, which was proposed by Shkuratov and others as being related to variations in regolith grain size. We propose a reinterpretati ...
applications of optical cavities in modern atomic, molecular
... vacuum structure and/or the large field associated with a single photon confined to a small volume. Experimental activities that have benefited from the use of optical cavities appear in such diverse areas as ultra-sensitive detection for classical laser spectroscopy, nonlinear optical devices, opti ...
... vacuum structure and/or the large field associated with a single photon confined to a small volume. Experimental activities that have benefited from the use of optical cavities appear in such diverse areas as ultra-sensitive detection for classical laser spectroscopy, nonlinear optical devices, opti ...
5 Optical Fibers
... sections: the glass core and the cladding layer (Figure 5.1). The core is a cylindrical structure, and the cladding is a cylinder without a core. Core and cladding have different refractive indices, with the core having a refractive index, n1, which is slightly higher than that of the cladding, n2. ...
... sections: the glass core and the cladding layer (Figure 5.1). The core is a cylindrical structure, and the cladding is a cylinder without a core. Core and cladding have different refractive indices, with the core having a refractive index, n1, which is slightly higher than that of the cladding, n2. ...
3D optical data storage
3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD).This innovation has the potential to provide petabyte-level mass storage on DVD-sized discs (120mm). Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.No commercial product based on 3D optical data storage has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available ""soon"".