Ultrashort-Pulse Generation and Ultrafast Phenomena
... with the same sample volume, and the mechanism for materials processing can differ from amplified pulses at kHz rates. In addition to superposing the effects of each pulse, investigators have reported that cumulative heating occurs when successive pulses interact within a microsecond time scale. Dev ...
... with the same sample volume, and the mechanism for materials processing can differ from amplified pulses at kHz rates. In addition to superposing the effects of each pulse, investigators have reported that cumulative heating occurs when successive pulses interact within a microsecond time scale. Dev ...
Optical diffraction tomography for high resolution live cell imaging
... converts phase changes of the transmitted light mainly induced by the heterogeneous refractive index distribution within the cell into intensity variations. However, these techniques do not provide quantitative maps of phase change. More advanced phase microscopy techniques have been developed to re ...
... converts phase changes of the transmitted light mainly induced by the heterogeneous refractive index distribution within the cell into intensity variations. However, these techniques do not provide quantitative maps of phase change. More advanced phase microscopy techniques have been developed to re ...
Scattering of inhomogeneous circularly polarized optical field and
... orbital degrees of freedom of light, especially their unique features and interrelations [9–12]. The spin flow is usually associated with inhomogeneous circular polarization while the orbital flow is due to the explicit energy redistribution within an optical beam. In view of such important and useful ...
... orbital degrees of freedom of light, especially their unique features and interrelations [9–12]. The spin flow is usually associated with inhomogeneous circular polarization while the orbital flow is due to the explicit energy redistribution within an optical beam. In view of such important and useful ...
Two arfvedsonitic rhyolite intrusions from Cloghaneely, Co
... with a general appearance of impure chalk (despite the superior hardness) due to the off-white colour. In thin section a very strong fluxion structure is revealed in a nearly monomineralic albitic rock. These felspar laths range up to 0-4 ram. long, whilst occasional more stocky microphcnocrysts (0- ...
... with a general appearance of impure chalk (despite the superior hardness) due to the off-white colour. In thin section a very strong fluxion structure is revealed in a nearly monomineralic albitic rock. These felspar laths range up to 0-4 ram. long, whilst occasional more stocky microphcnocrysts (0- ...
Fabrication of elliptically figured mirror for focusing hard x rays to
... the smaller the focal size obtained. In this study, a focusing test was carried out at the 1-km-long beamline 共BL29XUL兲 of SPring-8. The geometrical relationships between the x-ray source, mirror, and focusing position are determined on the assumption of beamline geometry. When , u, and d are selec ...
... the smaller the focal size obtained. In this study, a focusing test was carried out at the 1-km-long beamline 共BL29XUL兲 of SPring-8. The geometrical relationships between the x-ray source, mirror, and focusing position are determined on the assumption of beamline geometry. When , u, and d are selec ...
l .22 `"3: ` 20 29$
... illustrated generally at 60. The outer walls of the wave A microwave generator is provided in which at least guide 60 and the outer cylindrical conductors of the two transmission lines are connected at intervals along coaxial lines 34, 36, 38 and 40 are all at the same refer the length of a wave gui ...
... illustrated generally at 60. The outer walls of the wave A microwave generator is provided in which at least guide 60 and the outer cylindrical conductors of the two transmission lines are connected at intervals along coaxial lines 34, 36, 38 and 40 are all at the same refer the length of a wave gui ...
Picosecond laser ablation system with process control
... removing materials like metals or some polymers. Another process, a photo-chemical ablation consists in breaking off bonds in molecular chains of removed material by incident photons. To do so, photon energy must be higher than bonding energy. In effect, removing of material occurs as a result of f ...
... removing materials like metals or some polymers. Another process, a photo-chemical ablation consists in breaking off bonds in molecular chains of removed material by incident photons. To do so, photon energy must be higher than bonding energy. In effect, removing of material occurs as a result of f ...
Get PDF - OSA Publishing
... where φ1,2 (x) have periodicity of the lattice potential, b1,2 are constants, and k is the Floquet exponent. The linear matter-wave spectrum consists of bands of eigenvalues µn,k in which k(µ ) is a (real) wavenumber of amplitude-bounded Bloch waves [14]. The bands are separated by spectral gaps in ...
... where φ1,2 (x) have periodicity of the lattice potential, b1,2 are constants, and k is the Floquet exponent. The linear matter-wave spectrum consists of bands of eigenvalues µn,k in which k(µ ) is a (real) wavenumber of amplitude-bounded Bloch waves [14]. The bands are separated by spectral gaps in ...
Modes Effective Refractive Index Difference Measurement
... The effective refractive indices of the modes, and effective refractive index differences between the modes are important characteristics for few-mode optical fibers. By measuring the reflection spectrum of the fiber Bragg grating (FBG) fabricated in the few-mode fiber, some discrete information of ...
... The effective refractive indices of the modes, and effective refractive index differences between the modes are important characteristics for few-mode optical fibers. By measuring the reflection spectrum of the fiber Bragg grating (FBG) fabricated in the few-mode fiber, some discrete information of ...
Utilization of Birefringent Fiber as Sensor of Temperature Field
... It is necessary to accent, that measured results prove that the reaction time of the observed fiber is in order of 100s. Together with the high sensitivity it enables not only application in temperature sensor systems detecting disturbance of thermal field, but after a deeper analysis also at regula ...
... It is necessary to accent, that measured results prove that the reaction time of the observed fiber is in order of 100s. Together with the high sensitivity it enables not only application in temperature sensor systems detecting disturbance of thermal field, but after a deeper analysis also at regula ...
A day in the life of a Laser scientist
... have for lasers, then figuring out how to make a laser that will make the application work as well as possible. (CSIRO, laser manufacturers, medical companies and DSTO (Defence Science and Technology Organisation) • Inventing stuff and entrepeneurship: We invented a new type of laser and in 2004 for ...
... have for lasers, then figuring out how to make a laser that will make the application work as well as possible. (CSIRO, laser manufacturers, medical companies and DSTO (Defence Science and Technology Organisation) • Inventing stuff and entrepeneurship: We invented a new type of laser and in 2004 for ...
Laser Hazard Identification Checklist
... Scanning systems: If laser scanning mechanisms are present, they shall not allow operator exposure even in the case of failure or abnormal operations. Are beam scanning systems present? Warning signs and indicators: The entrances to areas or protective enclosures containing Class 3B or 4 lasers shou ...
... Scanning systems: If laser scanning mechanisms are present, they shall not allow operator exposure even in the case of failure or abnormal operations. Are beam scanning systems present? Warning signs and indicators: The entrances to areas or protective enclosures containing Class 3B or 4 lasers shou ...
Effects of atmospheric turbulence on remote optimal control
... Atmospheric applications of ultrashort and ultraintense lasers have recently emerged as a novel and very active field of research. On one side, the use of filamentation in air as coherent white light source for Light Detection and Ranging of atmospheric species has been proven as an attractive metho ...
... Atmospheric applications of ultrashort and ultraintense lasers have recently emerged as a novel and very active field of research. On one side, the use of filamentation in air as coherent white light source for Light Detection and Ranging of atmospheric species has been proven as an attractive metho ...
Direct Characterization of Plasmonic Slot Waveguides and
... based nanocouplers in the telecom wavelength range. Illumination with a wide laser beam excites both slot plasmons confined within a dielectric gap in a metal film and surface plasmon polaritons (SPP) propagating along the metal film interface perpendicular to the slot, and the resulting near-field ...
... based nanocouplers in the telecom wavelength range. Illumination with a wide laser beam excites both slot plasmons confined within a dielectric gap in a metal film and surface plasmon polaritons (SPP) propagating along the metal film interface perpendicular to the slot, and the resulting near-field ...
L. Koechlin Optical principles of diffraction focusing
... Illustration and formulas by Paul Deba Optical principles of diffraction focussing, ...
... Illustration and formulas by Paul Deba Optical principles of diffraction focussing, ...
Ab initio nanoplasmonics: The impact of atomic structure
... Optical properties of large isolated sodium clusters whose atoms are arranged in a bcc geometry have been studied extensively in a very recent article by Li et al. in the size range N 331 [51]. Our result in Fig. 1 for the bcc arrangement is fully consistent with theirs. For an isolated cluster, t ...
... Optical properties of large isolated sodium clusters whose atoms are arranged in a bcc geometry have been studied extensively in a very recent article by Li et al. in the size range N 331 [51]. Our result in Fig. 1 for the bcc arrangement is fully consistent with theirs. For an isolated cluster, t ...
Recent advances in transformation optics
... properties of metamaterials are not primarily dependent on the chemical constituents, but rather on the internal, specific structures of the building blocks of metamaterials. These building blocks function as artificial ‘‘atoms’’ and ‘‘molecules’’, in analogy to those in natural materials. Through ...
... properties of metamaterials are not primarily dependent on the chemical constituents, but rather on the internal, specific structures of the building blocks of metamaterials. These building blocks function as artificial ‘‘atoms’’ and ‘‘molecules’’, in analogy to those in natural materials. Through ...
Optical Materials for LWIR Applications
... Although there are few material choices for the LWIR, a designer still needs to choose one that is optimal for a particular application. It may be the case that none of the available materials in the LWIR can fulfill every design criterion, in which case compromises or trade-offs should be made. To ...
... Although there are few material choices for the LWIR, a designer still needs to choose one that is optimal for a particular application. It may be the case that none of the available materials in the LWIR can fulfill every design criterion, in which case compromises or trade-offs should be made. To ...
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.