the fresnel diffraction: a story of light and darkness
... Sophia – Antipolis. The results are given in Figure 1. A laser and a beam expander were used to produce a coherent plane wave. The occulter was a transparent slide with an opaque disk of diameter 1.5 mm, while Arago used a metallic disk of diameter 2 mm glued on a glass plate. Images obtained in pla ...
... Sophia – Antipolis. The results are given in Figure 1. A laser and a beam expander were used to produce a coherent plane wave. The occulter was a transparent slide with an opaque disk of diameter 1.5 mm, while Arago used a metallic disk of diameter 2 mm glued on a glass plate. Images obtained in pla ...
Green's function formulation for third-harmonic generation microscopy
... Third-harmonic generation from an interface perpendicular to the optical axis was illustrated by Barad et al.7 With the Green’s function model we are able to investigate THG from interfaces of different orientations. Figure 4 shows that THG signals can arise from an interface perpendicular or parall ...
... Third-harmonic generation from an interface perpendicular to the optical axis was illustrated by Barad et al.7 With the Green’s function model we are able to investigate THG from interfaces of different orientations. Figure 4 shows that THG signals can arise from an interface perpendicular or parall ...
Novel technique for thermal lens measurement in commonly used
... The beam transmitted by the test substrate is coupled into a scanned optical cavity using two piezo actuated mirrors for auto-alignment and two spherical lenses for mode matching. For the alignment control loop, two quadrant photo diodes detected the beam reflected by the cavity at different Gouy ph ...
... The beam transmitted by the test substrate is coupled into a scanned optical cavity using two piezo actuated mirrors for auto-alignment and two spherical lenses for mode matching. For the alignment control loop, two quadrant photo diodes detected the beam reflected by the cavity at different Gouy ph ...
Three-dimensional superresolution technology applied to
... applied to femtosecond laser microfabrication system, the superresolution performances are even better when two-photon absorption is considered. Finally, the influences of spectrum of light sources are discussed. It has been demonstrated that when the spectral width is narrow, the performance of sup ...
... applied to femtosecond laser microfabrication system, the superresolution performances are even better when two-photon absorption is considered. Finally, the influences of spectrum of light sources are discussed. It has been demonstrated that when the spectral width is narrow, the performance of sup ...
Chapter 4 - Refractometry - Index of Refraction
... Copyright 2010 Wm. Revell Phillips All Rights Reserved ...
... Copyright 2010 Wm. Revell Phillips All Rights Reserved ...
Simulating and optimizing compound refractive lens-based X
... with respect to N’. While attenuation by the lens means that CRLs practically operate within the first half-period (i.e. 0 N’ ), optical behavior differs markedly between the thin-lens limit (i.e. NT fN and correspondingly N’ 1) and the general thick lens case (i.e. all values of N’). This ...
... with respect to N’. While attenuation by the lens means that CRLs practically operate within the first half-period (i.e. 0 N’ ), optical behavior differs markedly between the thin-lens limit (i.e. NT fN and correspondingly N’ 1) and the general thick lens case (i.e. all values of N’). This ...
Birefringence in Optical Fibers: Applications
... support two modes simultaneously, which are orthogonally polarized. In an ideal circular-core fiber, these two modes will propagate with the same phase velocity; however, practical fibers are not perfectly circularly symmetric. As a result, the two modes propagate with slightly different phase and g ...
... support two modes simultaneously, which are orthogonally polarized. In an ideal circular-core fiber, these two modes will propagate with the same phase velocity; however, practical fibers are not perfectly circularly symmetric. As a result, the two modes propagate with slightly different phase and g ...
Default Normal Template
... displacement, pressure, electric currents, magnetic fields and various other material and environmental properties. Fiber optic sensors provide several advantages over their electrical counterparts, namely, high bandwidth, small size, light weight, corrosion resistance, geometrical flexibility and a ...
... displacement, pressure, electric currents, magnetic fields and various other material and environmental properties. Fiber optic sensors provide several advantages over their electrical counterparts, namely, high bandwidth, small size, light weight, corrosion resistance, geometrical flexibility and a ...
![[13] S. Ghost, ST Parker, X. Wang, DL Kaplan and JA Lewis](http://s1.studyres.com/store/data/009648722_1-ad6a1b829b6738b583b7809c145421dd-300x300.png)
[13] S. Ghost, ST Parker, X. Wang, DL Kaplan and JA Lewis
... A small radius of curvature (500 nm) for the microlensed fiber (LovaLite) is suitable for light focusing in the silk end facet. The transmitted power was detected at the output of the silk fiber by means of another fiber connected to a power meter (Agilent 81533). Both microlensed fibers were place ...
... A small radius of curvature (500 nm) for the microlensed fiber (LovaLite) is suitable for light focusing in the silk end facet. The transmitted power was detected at the output of the silk fiber by means of another fiber connected to a power meter (Agilent 81533). Both microlensed fibers were place ...
Influence of the Brownian movement on the motion of nano
... The results of these investigations can find their practi− cal use in applied biomedicine [12] as well as in various directions of singular polarization optics [13–15]. The offered paper is a continuation of investigations [16,17] of the influence of spatial modulations of the aver− aged Poynting ve ...
... The results of these investigations can find their practi− cal use in applied biomedicine [12] as well as in various directions of singular polarization optics [13–15]. The offered paper is a continuation of investigations [16,17] of the influence of spatial modulations of the aver− aged Poynting ve ...
Direct observation of light focusing by single photoreceptor cell nuclei
... These radial glial cells, which span two thirds of the retina, have an elongated cell body with a higher RI than their surroundings, they contain very few organelles and densely pack their cytoskeleton, which is oriented along the light direction. This creates a long cylindrical body with minimal ob ...
... These radial glial cells, which span two thirds of the retina, have an elongated cell body with a higher RI than their surroundings, they contain very few organelles and densely pack their cytoskeleton, which is oriented along the light direction. This creates a long cylindrical body with minimal ob ...
Development of a Total Internal Reflection Illumination System for
... At each time point, each subunit distribution was convolved with a Gaussian point spread function to simulate diffraction in the microscope. (That also increased the image size to 104x104.) There is al ...
... At each time point, each subunit distribution was convolved with a Gaussian point spread function to simulate diffraction in the microscope. (That also increased the image size to 104x104.) There is al ...
High speed silicon based optical modulators based on carrier
... wherep is the experimental wavelength difference between two successive resonance peaks. The experimental set-up used a tuneable laser in the 1550 nm range. A linearly polarized light beam was coupled into the waveguide using a polarization maintaining lensed fiber. The output light was collected ...
... wherep is the experimental wavelength difference between two successive resonance peaks. The experimental set-up used a tuneable laser in the 1550 nm range. A linearly polarized light beam was coupled into the waveguide using a polarization maintaining lensed fiber. The output light was collected ...
How laser works
... laser glass slabs. Only then are the laser beams switched out of the main amplifier to continue their journey to the target chamber. This system of glass, mirrors, and other special optics is known as a laser amplifier cavity. Precise design of the amplifier components allows scientists to control h ...
... laser glass slabs. Only then are the laser beams switched out of the main amplifier to continue their journey to the target chamber. This system of glass, mirrors, and other special optics is known as a laser amplifier cavity. Precise design of the amplifier components allows scientists to control h ...
A finite element beam propagation method for simulation of liquid
... Our goal is the development of a full-vector finite element BPM to simulate the evolution of the electric field of an input optical field upon propagation through inhomogeneous anisotropic media. In particular, we want to apply the method for optical modeling of liquid crystal devices such as liquid ...
... Our goal is the development of a full-vector finite element BPM to simulate the evolution of the electric field of an input optical field upon propagation through inhomogeneous anisotropic media. In particular, we want to apply the method for optical modeling of liquid crystal devices such as liquid ...
Polarization directions of noncollinear phase
... the polarization of entangled photons. I point out an aspect of the polarization of typical two-photon sources used in these studies that I feel has not been generally appreciated. I present an analysis, mapping both the output polarization and the relative intensity of one type of entangled-photon ...
... the polarization of entangled photons. I point out an aspect of the polarization of typical two-photon sources used in these studies that I feel has not been generally appreciated. I present an analysis, mapping both the output polarization and the relative intensity of one type of entangled-photon ...
Strategies for the compensation of specimen
... quality diffraction limited images deep within a real specimen. This requirement is at odds with many standard microscope objective lenses that are designed, for example, to image thin objects located directly under a glass cover slip of specified thickness. Spherical aberration may be introduced du ...
... quality diffraction limited images deep within a real specimen. This requirement is at odds with many standard microscope objective lenses that are designed, for example, to image thin objects located directly under a glass cover slip of specified thickness. Spherical aberration may be introduced du ...
Variability in ultraviolet total optical depth during the Southern
... wavelengths (300, 306, 312, 318, 326, 333 and 368 nm) at two sites during the period 1 July to 1 November 1997. The "rst site was at Riverside (260 m a.s.l.) in the Los Angeles metropolitan area, which frequently experiences severe air pollution episodes. The second site was at Mt Wilson (1725 m a.s ...
... wavelengths (300, 306, 312, 318, 326, 333 and 368 nm) at two sites during the period 1 July to 1 November 1997. The "rst site was at Riverside (260 m a.s.l.) in the Los Angeles metropolitan area, which frequently experiences severe air pollution episodes. The second site was at Mt Wilson (1725 m a.s ...
Impact of Liquid Crystals in Active and Adaptive Optics
... the optical field. Additionally, due to its liquid like behavior, this relative orientation can be easily tuned by using electric, magnetic or optical fields [1-6], so anisotropy and tuning capability are the two main properties that make LCs so attractive. In the preceding paragraph we spoke about ...
... the optical field. Additionally, due to its liquid like behavior, this relative orientation can be easily tuned by using electric, magnetic or optical fields [1-6], so anisotropy and tuning capability are the two main properties that make LCs so attractive. In the preceding paragraph we spoke about ...
Fifty years of laser: world and Latvian experience
... The first laser was born at Hughes Research Laboratories in Malibu, Calif. USA on May 16, 1960 when Theodor Maiman and his assistant Irnee D’Haenens demonstrated their ruby (Al2O3:Cr3+) laser [1]. However, the acronym „laser” (Light Amplification by a Stimulated Emission of Radiation) refers also to ...
... The first laser was born at Hughes Research Laboratories in Malibu, Calif. USA on May 16, 1960 when Theodor Maiman and his assistant Irnee D’Haenens demonstrated their ruby (Al2O3:Cr3+) laser [1]. However, the acronym „laser” (Light Amplification by a Stimulated Emission of Radiation) refers also to ...
Fiber-optic ring-down spectroscopy using a tunable picosecond gain-switched diode laser Applied Physics B
... used in fluorescence lifetime measurements and a number of suppliers for fixed-wavelength laser systems exist. Generally, these gain-switched diode lasers are not suited for quantitative spectroscopic measurements since their short pulse width is frequently associated with low and strongly fluctuati ...
... used in fluorescence lifetime measurements and a number of suppliers for fixed-wavelength laser systems exist. Generally, these gain-switched diode lasers are not suited for quantitative spectroscopic measurements since their short pulse width is frequently associated with low and strongly fluctuati ...
Microstructure and humidity sensitive properties of MgFe2O4 ferrite
... water molecules act as an electron-donating gas [1]. When water molecules are adsorbed on semiconductive oxide, the conductivity increases or decreases according to wheather the oxides are of n-type or p-type. This means that electrons are apparently transfered from water molecules to oxides. The ab ...
... water molecules act as an electron-donating gas [1]. When water molecules are adsorbed on semiconductive oxide, the conductivity increases or decreases according to wheather the oxides are of n-type or p-type. This means that electrons are apparently transfered from water molecules to oxides. The ab ...