LINEAR AND NONLINEAR LIGHT BULLETS: RECENT
... different values of the photonic lattice strength. Figure 5(b) illustrates the same dependence in the particular case p = 0 (for the unstable three-dimensional NLS solitons). Remarkably, for sufficiently large values of the lattice strength parameter p, the Hamiltonian-versus-energy (soliton norm) c ...
... different values of the photonic lattice strength. Figure 5(b) illustrates the same dependence in the particular case p = 0 (for the unstable three-dimensional NLS solitons). Remarkably, for sufficiently large values of the lattice strength parameter p, the Hamiltonian-versus-energy (soliton norm) c ...
Correlation between epithelial thickness in normal
... pixel intensity in proportion to echo amplitude along each line of sight. However, for many years the axial resolution of these systems had been limited because the center frequency had been restricted to the vicinity of 10 MHz. The evolution of conventional B-scanning, termed UBM, appeared much lat ...
... pixel intensity in proportion to echo amplitude along each line of sight. However, for many years the axial resolution of these systems had been limited because the center frequency had been restricted to the vicinity of 10 MHz. The evolution of conventional B-scanning, termed UBM, appeared much lat ...
plse2oximetry - Pheonix India
... • Self-adhesive probes are less susceptible to motion artifact and are less likely to come off if the patient moves than those that clip on. • However, they are usually not as well shielded from ambient light as clip-on probes. • probes are available in different sizes. If a probe is too large for ...
... • Self-adhesive probes are less susceptible to motion artifact and are less likely to come off if the patient moves than those that clip on. • However, they are usually not as well shielded from ambient light as clip-on probes. • probes are available in different sizes. If a probe is too large for ...
Influence of clearing solutions osmolarity on the optical properties of
... liquids4' 7-26 In this way it has recently been shows, that using such immersion liquids as the aqueous glucose solution, propylene glycol, trazograph, glycerol, allows one to decrease significantly (up to several folds) the scattering properties of tissues and blood5' 6 The aqueous glucose solution ...
... liquids4' 7-26 In this way it has recently been shows, that using such immersion liquids as the aqueous glucose solution, propylene glycol, trazograph, glycerol, allows one to decrease significantly (up to several folds) the scattering properties of tissues and blood5' 6 The aqueous glucose solution ...
Optical negative refraction by four-wave mixing in thin metallic nanostructures LETTERS *
... Stefano Palomba1 , Shuang Zhang1,2 , Yongshik Park1 , Guy Bartal1,3 , Xiaobo Yin1,4 and Xiang Zhang1,4 * The law of refraction first derived by Snellius and later introduced as the Huygens–Fermat principle1 , states that the incidence and refracted angles of a light wave at the interface of two diff ...
... Stefano Palomba1 , Shuang Zhang1,2 , Yongshik Park1 , Guy Bartal1,3 , Xiaobo Yin1,4 and Xiang Zhang1,4 * The law of refraction first derived by Snellius and later introduced as the Huygens–Fermat principle1 , states that the incidence and refracted angles of a light wave at the interface of two diff ...
Lens induced by stress in ... for high-pressure cells
... beam passes through an axial hole in the support plug. Such an arrangement, known as a Poulter window, is widely used for optical high-pressure cells.“3 An accurate assessment of the optical effects of pressure on windows of this type can be obtained from a theoretical calculation because of the sim ...
... beam passes through an axial hole in the support plug. Such an arrangement, known as a Poulter window, is widely used for optical high-pressure cells.“3 An accurate assessment of the optical effects of pressure on windows of this type can be obtained from a theoretical calculation because of the sim ...
the physical basis of transparency of the normal cornea
... eye. As well as being tough, it must be transparent and maintain a smooth and stable curvature since it contributes to the major part of the focusing power of the eye. Whilst those properties can be readily appreciated clinically, contention has arisen as to how transparency is achieved in the light ...
... eye. As well as being tough, it must be transparent and maintain a smooth and stable curvature since it contributes to the major part of the focusing power of the eye. Whilst those properties can be readily appreciated clinically, contention has arisen as to how transparency is achieved in the light ...
Chapter 15 - dysoncentralne
... at that location. When the light from the two slits combines destructively at a point on the viewing screen, a dark fringe appears at that location. When a white-light source is used to observe interference, the situation becomes more complicated. The reason is that white light includes waves of man ...
... at that location. When the light from the two slits combines destructively at a point on the viewing screen, a dark fringe appears at that location. When a white-light source is used to observe interference, the situation becomes more complicated. The reason is that white light includes waves of man ...
Symbolic computation and solitons of the nonlinear Schro¨dinger
... retarded time, a(z) is the group velocity dispersion parameter and b(z) is related to the Kerr nonlinearity, and M(z) and F(z) are inhomogeneous parameters related to phase modulation and loss/gain, which are the functions of the propagation distance z, respectively. The study of nonlinear wave prop ...
... retarded time, a(z) is the group velocity dispersion parameter and b(z) is related to the Kerr nonlinearity, and M(z) and F(z) are inhomogeneous parameters related to phase modulation and loss/gain, which are the functions of the propagation distance z, respectively. The study of nonlinear wave prop ...
A finite element beam propagation method for simulation of liquid
... is then again used to calculate a next, more accurate, value for the derivative at z = 0 similar as in Eq. (25). It can be shown that if this wide angle iteration procedure is repeated for a sufficient number N of steps, the initial derivative at z = 0 and the transverse field at z = ∆z will converg ...
... is then again used to calculate a next, more accurate, value for the derivative at z = 0 similar as in Eq. (25). It can be shown that if this wide angle iteration procedure is repeated for a sufficient number N of steps, the initial derivative at z = 0 and the transverse field at z = ∆z will converg ...
Multiply scattered waves through a spatially random medium
... media the of scattering of light from state effect evidenced (both polarization, however the polarization that has been recently memory confirmed experimentally [8] soon afterwards) theoretically [6-7] and that suggests some of polarization incident irretrievably information about the of the beam is ...
... media the of scattering of light from state effect evidenced (both polarization, however the polarization that has been recently memory confirmed experimentally [8] soon afterwards) theoretically [6-7] and that suggests some of polarization incident irretrievably information about the of the beam is ...
Efficient Computation of Photonic Crystal Waveguide Modes with
... super-cell approach [1, 13, 14], where the standard band structure codes for PhCs are applied to a super-cell instead to the unit cell (cf. Fig 2(b),(c) for examples). The super-cell system models an infinite array of identical line defects separated by a certain number photonic crystal rows. An alt ...
... super-cell approach [1, 13, 14], where the standard band structure codes for PhCs are applied to a super-cell instead to the unit cell (cf. Fig 2(b),(c) for examples). The super-cell system models an infinite array of identical line defects separated by a certain number photonic crystal rows. An alt ...
Journal of Refractive Surgery - Center For Development Of
... pachymeter uses echo delay and requires the use of topical anesthetic. Corneal thickness was measured preoperatively once the patient was supine after instillation of aurocaine in the laser suite prior to flap creation, immediately after reflecting the flap for the LASIK cases, and immediately after ...
... pachymeter uses echo delay and requires the use of topical anesthetic. Corneal thickness was measured preoperatively once the patient was supine after instillation of aurocaine in the laser suite prior to flap creation, immediately after reflecting the flap for the LASIK cases, and immediately after ...
Introduction
... a multiple of λ/2. The complete functional relationship between I(x) and x is given by the cosine function ...
... a multiple of λ/2. The complete functional relationship between I(x) and x is given by the cosine function ...
Experimental investigation of the propagation properties of bloch
... diode laser (Agilent, Model 81682A) tunable for wavelengths ranging from 1460 to 1580 nm. We use a focused Gaussian beam to couple light onto the surface of the multilayer. An incident beam illuminates the prism at an angle θ =50.15 deg., for bare multilayer (BML), at the corresponding wavelength λ ...
... diode laser (Agilent, Model 81682A) tunable for wavelengths ranging from 1460 to 1580 nm. We use a focused Gaussian beam to couple light onto the surface of the multilayer. An incident beam illuminates the prism at an angle θ =50.15 deg., for bare multilayer (BML), at the corresponding wavelength λ ...
File
... (ii) Monochromaticity •The degree of monochromaticity is expressed in terms of line width (spectral width) •The line width is the frequency spread of a spectral ...
... (ii) Monochromaticity •The degree of monochromaticity is expressed in terms of line width (spectral width) •The line width is the frequency spread of a spectral ...
High luminance hybrid light guide plate for
... LCDs are widely used in miscellaneous products, such as computer monitors, cell phones, and televisions. Since the LCD is a non-spontaneous emission display device, an external light source is necessary for the display operation. For power saving, this external light sources of a LCD are light emitt ...
... LCDs are widely used in miscellaneous products, such as computer monitors, cell phones, and televisions. Since the LCD is a non-spontaneous emission display device, an external light source is necessary for the display operation. For power saving, this external light sources of a LCD are light emitt ...
Plasmonic Metamaterials
... refraction and NIMs. For instance, there are two bound-SPP modes in a two-dimensional metaldielectric-metal (MDM) slab waveguide, which originate from the coupling and hybridization of the SPP mode at each individual metal-dielectric interface when the thickness of the dielectric layer is small.37 I ...
... refraction and NIMs. For instance, there are two bound-SPP modes in a two-dimensional metaldielectric-metal (MDM) slab waveguide, which originate from the coupling and hybridization of the SPP mode at each individual metal-dielectric interface when the thickness of the dielectric layer is small.37 I ...
Focal shift of silicon microlen array in mid
... Over the decades, extensive efforts have been devoted to explore the properties of the focal shift and its effects on the integration in optical systems [4, 11-15]. Si MLAs [16, ...
... Over the decades, extensive efforts have been devoted to explore the properties of the focal shift and its effects on the integration in optical systems [4, 11-15]. Si MLAs [16, ...
Quantifying and pinpointing sources of noise in optical tweezers experiments
... Fourier analysis is an excellent tool to calibrate optical tweezers on-the-fly. Furthermore, peaks occuring in the high frequency part of the power spectrum can often easily be traced backwards to a particular noise contribution. However, Fourier analysis is not optimal for identifying and quantifyin ...
... Fourier analysis is an excellent tool to calibrate optical tweezers on-the-fly. Furthermore, peaks occuring in the high frequency part of the power spectrum can often easily be traced backwards to a particular noise contribution. However, Fourier analysis is not optimal for identifying and quantifyin ...
Wide-field optical model of the human eye with
... wide-field schematic eyes [50], creating separate models for each of three distinct age groups. Each of the aforementioned eye models was designed with a unique goal in mind. The principal aim of some of the models was to simulate the correct magnitude of on-axis spherical aberration [45,51], while ...
... wide-field schematic eyes [50], creating separate models for each of three distinct age groups. Each of the aforementioned eye models was designed with a unique goal in mind. The principal aim of some of the models was to simulate the correct magnitude of on-axis spherical aberration [45,51], while ...
Phononic Crystal Waveguiding in GaAs Golnaz Azodi Aval
... wave which propagates along the surface of the crystal and was detected by the other IDT. It was observed that, by means of this device, a delay and a filtering could be obtained in a very compact package. Nowadays, SAW devices are of extensive use in electronics and communication mobile technologie ...
... wave which propagates along the surface of the crystal and was detected by the other IDT. It was observed that, by means of this device, a delay and a filtering could be obtained in a very compact package. Nowadays, SAW devices are of extensive use in electronics and communication mobile technologie ...
Optical Behavior of Pellicles
... Nitrocellulose absorbs appreciably below about 350 nm, so amorphous fluoropolymers (such as Teflon AF and Cytop) are used for KrF and ArF pellicles. Since these materials have low refractive indices (near 1.34 at 248 nm and 1.40 at 193 nm), it is difficult to find antireflective coatings that work w ...
... Nitrocellulose absorbs appreciably below about 350 nm, so amorphous fluoropolymers (such as Teflon AF and Cytop) are used for KrF and ArF pellicles. Since these materials have low refractive indices (near 1.34 at 248 nm and 1.40 at 193 nm), it is difficult to find antireflective coatings that work w ...
High optical absorption in graphene
... If we were to freely tune the optical properties of a film with the thickness of a single layer of graphene, the maximum attainable light absorption would be dictated by the contrast of the surrounding media [5]. This general limit for light absorption in ultrathin films may under favorable conditio ...
... If we were to freely tune the optical properties of a film with the thickness of a single layer of graphene, the maximum attainable light absorption would be dictated by the contrast of the surrounding media [5]. This general limit for light absorption in ultrathin films may under favorable conditio ...
REFRACTION SYSTEMS AUTOREFRACTORS
... pupil distance measurement, LAN and RS-232C output, USB host, motorized omni-directional joystick, 5.7 inch tiltable multifunctional color LCD monitor, built-in printer, universal power supply, compact and lightweight. Cataract mark detection; virtual vision comparison; corneal size measurements; Ey ...
... pupil distance measurement, LAN and RS-232C output, USB host, motorized omni-directional joystick, 5.7 inch tiltable multifunctional color LCD monitor, built-in printer, universal power supply, compact and lightweight. Cataract mark detection; virtual vision comparison; corneal size measurements; Ey ...
Optical coherence tomography
Optical coherence tomography (OCT) is an established medical imaging technique that uses light to capture micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue). Optical coherence tomography is based on low-coherence interferometry, typically employing near-infrared light. The use of relatively long wavelength light allows it to penetrate into the scattering medium. Confocal microscopy, another optical technique, typically penetrates less deeply into the sample but with higher resolution.Depending on the properties of the light source (superluminescent diodes, ultrashort pulsed lasers, and supercontinuum lasers have been employed), optical coherence tomography has achieved sub- micrometer resolution (with very wide-spectrum sources emitting over a ~100 nm wavelength range).Optical coherence tomography is one of a class of optical tomographic techniques. A relatively recent implementation of optical coherence tomography, frequency-domain optical coherence tomography, provides advantages in signal-to-noise ratio, permitting faster signal acquisition. Commercially available optical coherence tomography systems are employed in diverse applications, including art conservation and diagnostic medicine, notably in ophthalmology and optometry where it can be used to obtain detailed images from within the retina. Recently it has also begun to be used in interventional cardiology to help diagnose coronary artery disease. It has also shown promise in dermatology to improve the diagnostic process.