C41021922
... optical property study indicates that the compound has SHG efficiency 0.5 times greater than that of standard potassium dihydrogen phosphate (KDP). Keywords: Optical; Elemental analysis; Structural properties; ...
... optical property study indicates that the compound has SHG efficiency 0.5 times greater than that of standard potassium dihydrogen phosphate (KDP). Keywords: Optical; Elemental analysis; Structural properties; ...
PCT form - 1 - DESCRIPTION OPTICAL MEASURING DEVICE AND
... electrical structure of the nanoparticle measuring device. Figs. 7A and 7B are views for explaining the structure of a sample cell 21 shown in Fig. 6, and more specifically, Fig. 7A is a schematic front view of the sample cell 21 as seen in a laser beam irradiation direction, and Fig. 7B is a ...
... electrical structure of the nanoparticle measuring device. Figs. 7A and 7B are views for explaining the structure of a sample cell 21 shown in Fig. 6, and more specifically, Fig. 7A is a schematic front view of the sample cell 21 as seen in a laser beam irradiation direction, and Fig. 7B is a ...
Measuring the Hyperfine Splittings of Lowest Energy Atomic
... taking the difference of two photodiode outputs due to multiple beams of a single laser scanned over a range of frequencies and shone through a cell of Rb vapor. When the laser frequency was resonant with an atomic transition, photons of those frequencies were absorbed, leaving a dip in intensity of ...
... taking the difference of two photodiode outputs due to multiple beams of a single laser scanned over a range of frequencies and shone through a cell of Rb vapor. When the laser frequency was resonant with an atomic transition, photons of those frequencies were absorbed, leaving a dip in intensity of ...
Understanding Laser Beam Parameters Leads to Better System
... beam diameter or cross-section. From an application standpoint, beam efficiency is often directly related to the beam’s ability to be focused. The intensity distribution or profile of a laser beam may not be sufficient to predict its ability to be focused, in which case the use of a beam propagation ...
... beam diameter or cross-section. From an application standpoint, beam efficiency is often directly related to the beam’s ability to be focused. The intensity distribution or profile of a laser beam may not be sufficient to predict its ability to be focused, in which case the use of a beam propagation ...
Non-invasive ophthalmic imaging of adult zebrafish eye using
... topic of considerable current interest. This is motivated by the potential of optical techniques to provide sub-millimetre resolution imaging without the need for ionizing radiation and associated risks1. The fundamental problem with optical imaging is that in contrast to X-rays, optical photons are ...
... topic of considerable current interest. This is motivated by the potential of optical techniques to provide sub-millimetre resolution imaging without the need for ionizing radiation and associated risks1. The fundamental problem with optical imaging is that in contrast to X-rays, optical photons are ...
Cavity Enhanced Reflector Based Hybrid Silicon Laser
... on the same chip will become available. This, on its turn, enables exciting new applications such as ultra-fast optical communication links between different chips on a circuit board or low-cost lab-on-a-chip solutions. Most optical components necessary to build these systems, such as photonic wires ...
... on the same chip will become available. This, on its turn, enables exciting new applications such as ultra-fast optical communication links between different chips on a circuit board or low-cost lab-on-a-chip solutions. Most optical components necessary to build these systems, such as photonic wires ...
An experiment to measure Mie and Rayleigh total scattering cross
... Numerical values of Mie were calculated using the subroutine BHMIE.11 This computer code and similar ones are readily available online.12 The series expression for Mie converges after a number of terms slightly larger than the size parameter. For example, the largest particles studied, a ⫽0.2615 ...
... Numerical values of Mie were calculated using the subroutine BHMIE.11 This computer code and similar ones are readily available online.12 The series expression for Mie converges after a number of terms slightly larger than the size parameter. For example, the largest particles studied, a ⫽0.2615 ...
Novel high-temperature and pressure-compatible ultrasonic levitator
... the physical and chemical processes on the bulk samples typically used in surface science and the surfaces of micrometersized levitated particles.5, 6 Finally, owing to their small total heat capacity, the levitated particle can be heated to a high temperature (see Sec. II C) over very short time sc ...
... the physical and chemical processes on the bulk samples typically used in surface science and the surfaces of micrometersized levitated particles.5, 6 Finally, owing to their small total heat capacity, the levitated particle can be heated to a high temperature (see Sec. II C) over very short time sc ...
Frequency comb generation by CW laser injection
... their wide optical spectrum and stabilized mode spacing, ultra-high repetition rate frequency combs are attractive for application in wavelength-division multiplexed (WDM) systems and also as multi-wavelength light sources [18–21]. The coherence of frequency comb modes can be exploited in Coherent O ...
... their wide optical spectrum and stabilized mode spacing, ultra-high repetition rate frequency combs are attractive for application in wavelength-division multiplexed (WDM) systems and also as multi-wavelength light sources [18–21]. The coherence of frequency comb modes can be exploited in Coherent O ...
Manipulating atoms with photons (Nobel lecture of C. Cohen
... obtained with such a scheme is always larger than a certain limit T D , called the Doppler limit, and given by k B T D 5\G/2 where G is the natural width of the excited state and k B the Boltzmann constant. This limit, which is reached for d 5 v L 2 v A 52G/2, is, for alkali atoms, on the order of 1 ...
... obtained with such a scheme is always larger than a certain limit T D , called the Doppler limit, and given by k B T D 5\G/2 where G is the natural width of the excited state and k B the Boltzmann constant. This limit, which is reached for d 5 v L 2 v A 52G/2, is, for alkali atoms, on the order of 1 ...
Laser written waveguide photonic quantum circuits
... In conventional lithographically fabricated integrated optical devices, light is guided in waveguides consisting of a core and a slightly lower refractive-index cladding or buffer layers (in a manner analogous to an optical fibre). In the commonly used flame hydrolysis deposition (FHD) fabrication m ...
... In conventional lithographically fabricated integrated optical devices, light is guided in waveguides consisting of a core and a slightly lower refractive-index cladding or buffer layers (in a manner analogous to an optical fibre). In the commonly used flame hydrolysis deposition (FHD) fabrication m ...
Fiber Optic Switches
... Technology. MEMS are miniature devices fabricated with a process called micro machining. The structures range in dimensions from a few hundred microns to millimeters, and are mostly fabricated on silicon substrates, using standard semiconductor processing techniques. MEMS offer the same potential be ...
... Technology. MEMS are miniature devices fabricated with a process called micro machining. The structures range in dimensions from a few hundred microns to millimeters, and are mostly fabricated on silicon substrates, using standard semiconductor processing techniques. MEMS offer the same potential be ...
Laser Linewidth Characterization
... If either field were separately detected on a photodetector, the resulting photocurrent would follow only the power variations, P(t) and all phase information would be lost The optical phase, φ(t) takes into account any laser-phase noise or optical frequency modulation The total phase 2πνt + φ(t), o ...
... If either field were separately detected on a photodetector, the resulting photocurrent would follow only the power variations, P(t) and all phase information would be lost The optical phase, φ(t) takes into account any laser-phase noise or optical frequency modulation The total phase 2πνt + φ(t), o ...
Suppression of stimulated Brillouin scattering in
... energy transmitted as a function of κs under the same operating conditions. As one may expect, the sampled grating is not as effective as a single long grating for the same value of κ. Nevertheless, almost 100% of pulse energy can be transmitted when P0 = 1 kW using a grating with κ = 0.8 cm-1. For ...
... energy transmitted as a function of κs under the same operating conditions. As one may expect, the sampled grating is not as effective as a single long grating for the same value of κ. Nevertheless, almost 100% of pulse energy can be transmitted when P0 = 1 kW using a grating with κ = 0.8 cm-1. For ...
Improved Theoretical Reflectivities of Extreme Ultraviolet Mirrors
... shown in Fig. 1. Near the substrate, dMo ≈ dSi ≈ 3.5 nm, varying to dMo ≈ 2.7 nm and dSi ≈ 4.2 nm near the surface. A salient feature of the layer profile data in Fig. 1 is that the partition ration of ~0.4 is maintained for the first 20 periods from the surface and thereafter gradually changes to ~ ...
... shown in Fig. 1. Near the substrate, dMo ≈ dSi ≈ 3.5 nm, varying to dMo ≈ 2.7 nm and dSi ≈ 4.2 nm near the surface. A salient feature of the layer profile data in Fig. 1 is that the partition ration of ~0.4 is maintained for the first 20 periods from the surface and thereafter gradually changes to ~ ...
54_1.PDF
... Some of the tasks of modern large scale accelerator facilities include the generation of particles as well as research on sub-nuclear structures. For this, to resolve a dimension d, the required corresponding wavelength - either of particles or light - has to be equal or smaller than 2nd. For a part ...
... Some of the tasks of modern large scale accelerator facilities include the generation of particles as well as research on sub-nuclear structures. For this, to resolve a dimension d, the required corresponding wavelength - either of particles or light - has to be equal or smaller than 2nd. For a part ...
Laser Frequency and Time 1 Introduction
... which is equal to the laser frequency itself. If this interval is repeatedly cut precisely in half, one will eventually reach a sufficiently small gap that can be measured as a beat signal. Each divider stage contains a laser whose second harmonic frequency is phase-locked to the sum frequency of it ...
... which is equal to the laser frequency itself. If this interval is repeatedly cut precisely in half, one will eventually reach a sufficiently small gap that can be measured as a beat signal. Each divider stage contains a laser whose second harmonic frequency is phase-locked to the sum frequency of it ...
Full-Text PDF
... precise manipulation of fluids at microscale thus making it possible to streamline complex fabrication processes. The optofluidic system aims to fully integrate optical functions on a single chip instead of using external bulky optics, which can consequently lower the cost of system, downsize the sy ...
... precise manipulation of fluids at microscale thus making it possible to streamline complex fabrication processes. The optofluidic system aims to fully integrate optical functions on a single chip instead of using external bulky optics, which can consequently lower the cost of system, downsize the sy ...
GaAs-based polarization modulators for microwave photonic
... components of the transverse electric (TE) and transverse magnetic (TM) eigenmodes of the optical waveguide, independent of the electric field E, as shown in Fig. 1. Moreover, the changes in the optical indicatrix along the fast and slow axes are of the exact same value, which depends on the electric ...
... components of the transverse electric (TE) and transverse magnetic (TM) eigenmodes of the optical waveguide, independent of the electric field E, as shown in Fig. 1. Moreover, the changes in the optical indicatrix along the fast and slow axes are of the exact same value, which depends on the electric ...
Visible light optical coherence correlation spectroscopy
... Another very interesting feature would be to have the possibility to distinguish different species of scattering NPs, for instance based on their size. This would give the possibility to distinctively label several targets in measurements and to measure chemical reaction kinetics, for instance. The ...
... Another very interesting feature would be to have the possibility to distinguish different species of scattering NPs, for instance based on their size. This would give the possibility to distinctively label several targets in measurements and to measure chemical reaction kinetics, for instance. The ...
Lecture 18
... microscope can be characterized by the modulation transfer function (MTF) • MTF is measurement of microscope's ability to transfer contrast from the specimen to the image plane at specific resolution. • Incorporates resolution and contrast into one specification ...
... microscope can be characterized by the modulation transfer function (MTF) • MTF is measurement of microscope's ability to transfer contrast from the specimen to the image plane at specific resolution. • Incorporates resolution and contrast into one specification ...
Observation of transverse interference fringes on an atom laser beam
... To study the atom laser profile, we use atoms RF output-coupled from a He* BEC. Our experimental setup for creating a He* BEC has been reported elsewhere [18]. Briefly, we use a cryogenic beamline to produce a He* MOT. Atoms are extracted from this low vacuum magnetooptic trap (MOT) into a high vacu ...
... To study the atom laser profile, we use atoms RF output-coupled from a He* BEC. Our experimental setup for creating a He* BEC has been reported elsewhere [18]. Briefly, we use a cryogenic beamline to produce a He* MOT. Atoms are extracted from this low vacuum magnetooptic trap (MOT) into a high vacu ...
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.