New Approaches to Gyroscopic Lasers
... gain medium for the gyroscope. Both neodymium doped and erbium ytterbium co-doped phosphate glass lasers were constructed. Initially linear cavity designs were constructed to test the suitability of the gain media. Both laser systems employed longitudinal laser diode pumping. Thirty six perimeter ri ...
... gain medium for the gyroscope. Both neodymium doped and erbium ytterbium co-doped phosphate glass lasers were constructed. Initially linear cavity designs were constructed to test the suitability of the gain media. Both laser systems employed longitudinal laser diode pumping. Thirty six perimeter ri ...
Bimodal waveguide interferometer device based high sensitive biosensing
... Scheme of a interferometer based on Mach-Zehnder configuration Cosine dependence of interferometric signals. . . . . . . . . . . . Optical arrangement and representation of a Young Interferometric biosensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Schematic of a dual polarization i ...
... Scheme of a interferometer based on Mach-Zehnder configuration Cosine dependence of interferometric signals. . . . . . . . . . . . Optical arrangement and representation of a Young Interferometric biosensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Schematic of a dual polarization i ...
DETERMINING SPATIAL MODES OF SEMICONDUCTOR LASERS
... 4.32 Intensity profiles for laser LD20 for current levels from 26 mA to 60 mA. The profiles marked with circles indicate the current levels for spatial coherence tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 4.33 (Left) Lateral spatial modes of LD20 at current levels o ...
... 4.32 Intensity profiles for laser LD20 for current levels from 26 mA to 60 mA. The profiles marked with circles indicate the current levels for spatial coherence tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117 4.33 (Left) Lateral spatial modes of LD20 at current levels o ...
Multistep Parametric Processes in Nonlinear Optics
... Nonlinear effects produced by quadratic intensity-dependent response of a transparent dielectric medium are usually associated with parametric frequency conversion such as the second harmonic generation (SHG). The SHG process is one of the most well-studied parametric interactions which may occur in ...
... Nonlinear effects produced by quadratic intensity-dependent response of a transparent dielectric medium are usually associated with parametric frequency conversion such as the second harmonic generation (SHG). The SHG process is one of the most well-studied parametric interactions which may occur in ...
Design and use of guided mode resonance filters for
... Even though the principles of diffraction had been known since the time of Newton, it was Rittenhouse who in 1786, produced the first man-made diffraction grating from hairs spaced by the threads of two fine screws [1]. Years later, in 1902, Wood noticed unexpected rapid intensity variations in ligh ...
... Even though the principles of diffraction had been known since the time of Newton, it was Rittenhouse who in 1786, produced the first man-made diffraction grating from hairs spaced by the threads of two fine screws [1]. Years later, in 1902, Wood noticed unexpected rapid intensity variations in ligh ...
Narrowband photon pair generation and waveform reshaping
... computation, quantum cryptography, quantum imaging, and other quantum optics related areas [1–3]. There are some early works on photon pair generation in atomic medium, through positronium annihilation [4], or atomic ...
... computation, quantum cryptography, quantum imaging, and other quantum optics related areas [1–3]. There are some early works on photon pair generation in atomic medium, through positronium annihilation [4], or atomic ...
Novel Heterostructure Metal-Semiconductor-Metal
... αL2=0.1. .....................................................................................................45 ...
... αL2=0.1. .....................................................................................................45 ...
STUDY OF NONLINEAR EVOLUTION EQUATIONS WITH
... by an enhanced nonlinear absorption coefficient of the material and thus finds applications in all-optical processes. This thesis shows results of the effect of TPA on soliton propagation in a nonlinear optical medium. We find that localized gain exactly balance the losses due to TPA and results into chi ...
... by an enhanced nonlinear absorption coefficient of the material and thus finds applications in all-optical processes. This thesis shows results of the effect of TPA on soliton propagation in a nonlinear optical medium. We find that localized gain exactly balance the losses due to TPA and results into chi ...
The List of Author`s Publications
... stresses within the laser material and, in addition, deformation of the laser rod end faces due to differential expansion [12]. The net result is beam distortion due to thermal lensing, depolarization loss due to stress induced birefringence and ultimately catastrophic failure due fracture of the la ...
... stresses within the laser material and, in addition, deformation of the laser rod end faces due to differential expansion [12]. The net result is beam distortion due to thermal lensing, depolarization loss due to stress induced birefringence and ultimately catastrophic failure due fracture of the la ...
Waveguide lasers in ytterbium doped tantalum pentoxide for
... Numerical modelling of symmetrical rib waveguide in Ta2O5 was carried out finding an optimum waveguide design for a near-circular mode profile with maximum confinement of light within the core with various etch depths and rib widths. A numerical study investigating the feasibility of integrated Kerr ...
... Numerical modelling of symmetrical rib waveguide in Ta2O5 was carried out finding an optimum waveguide design for a near-circular mode profile with maximum confinement of light within the core with various etch depths and rib widths. A numerical study investigating the feasibility of integrated Kerr ...
Techreportjul09 - University of Reading
... it is available for laboratory measurements although some caution must be attached. Laboratory SRFA has a density of 1.47 g cm-3 and a refractive index of 1.634-0.021i at 532nm. Other groups use information from observations of biomass or fossil fuel burning to constrain their optical properties. Fo ...
... it is available for laboratory measurements although some caution must be attached. Laboratory SRFA has a density of 1.47 g cm-3 and a refractive index of 1.634-0.021i at 532nm. Other groups use information from observations of biomass or fossil fuel burning to constrain their optical properties. Fo ...
Development of a Tm3+-doped Fluoride Glass - DORAS
... The development of a fluoride fibre laser for hydrocarbon gas sensing is discussed. The use of a fibre laser as a source for optical sensing has many advantages including small size and ease of adaptability into industrial systems. The fibre laser constructed in this work has an operating wavelength ...
... The development of a fluoride fibre laser for hydrocarbon gas sensing is discussed. The use of a fibre laser as a source for optical sensing has many advantages including small size and ease of adaptability into industrial systems. The fibre laser constructed in this work has an operating wavelength ...
Integrated Opto-Micro uidic Lab-on-a-Chip in
... reasons, applications for micro uidics have clearly advanced from their root in microanalytical chemistry. Unlike continuous ow systems, droplet-based systems focus on creating descrete volumes with the use of immiscible phases. Thanks to its scalability and parallel processing, droplet micro uidic ...
... reasons, applications for micro uidics have clearly advanced from their root in microanalytical chemistry. Unlike continuous ow systems, droplet-based systems focus on creating descrete volumes with the use of immiscible phases. Thanks to its scalability and parallel processing, droplet micro uidic ...
RESONATOR OPTICS
... The frequency selectivity of an optical resonator makes it useful as an optical filter or spectrum analyzer. Its most important use, however, is as a “container” within which laser light is generated. The laser is an optical resonator containing a medium that amplifies light. The resonator determine ...
... The frequency selectivity of an optical resonator makes it useful as an optical filter or spectrum analyzer. Its most important use, however, is as a “container” within which laser light is generated. The laser is an optical resonator containing a medium that amplifies light. The resonator determine ...
Full text - Simon Fraser University
... Single layer molybdenum disulfide (MoS2 ) has attracted significant interest as a semiconducting two-dimensional material. In this work, ultrathin layers of MoS2 were exfoliated on gel and wax substrates. Raman studies of the ultrathin layers of MoS2 were carried out to characterize the thickness. Dur ...
... Single layer molybdenum disulfide (MoS2 ) has attracted significant interest as a semiconducting two-dimensional material. In this work, ultrathin layers of MoS2 were exfoliated on gel and wax substrates. Raman studies of the ultrathin layers of MoS2 were carried out to characterize the thickness. Dur ...
Laser Sources for Confocal Microscopy
... and ease of use. At the same time, expansion of web resources has provided easy access to a wealth of information. Our goal is both to aid the experienced and novice microscopist in quickly locating and sorting through the relevant laser information and to provide a means of avoiding common problems ...
... and ease of use. At the same time, expansion of web resources has provided easy access to a wealth of information. Our goal is both to aid the experienced and novice microscopist in quickly locating and sorting through the relevant laser information and to provide a means of avoiding common problems ...
Word - The Open University
... There are broadly speaking two categories of device used as light sources: lightemitting diodes (LEDs) and laser diodes. In general terms, LEDs are cheaper and easier to use, but have inferior performance compared to laser diodes. The output from an LED differs from that of a laser diode as it is po ...
... There are broadly speaking two categories of device used as light sources: lightemitting diodes (LEDs) and laser diodes. In general terms, LEDs are cheaper and easier to use, but have inferior performance compared to laser diodes. The output from an LED differs from that of a laser diode as it is po ...
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 ...
Optical grating coupler biosensor and biomedical applications Lorena Diéguez Moure
... through different approaches. Low cost sensors in polymer substrates were investigated, as well as novel coatings for commercial sensors with different sputtered and evaporated materials. These new sensors will allow quick quantitative studies of the adsorption of biomolecules onto their surfaces, t ...
... through different approaches. Low cost sensors in polymer substrates were investigated, as well as novel coatings for commercial sensors with different sputtered and evaporated materials. These new sensors will allow quick quantitative studies of the adsorption of biomolecules onto their surfaces, t ...
Gravity Gradient Survey with a Mobile Atom
... measurements at two locations. For example, (see figure 1.2) ...
... measurements at two locations. For example, (see figure 1.2) ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.