
Generation of diffractive optical elements onto a photopolymer using a
... recorded onto the photopolymer can be easily changed simply by changing the function addressed to the LCD. Photopolymer based recording materials have been widely studied for holographic applications[6] [7][8][9] Their good properties as high diffraction efficiencies, low noise, self-developing, eas ...
... recorded onto the photopolymer can be easily changed simply by changing the function addressed to the LCD. Photopolymer based recording materials have been widely studied for holographic applications[6] [7][8][9] Their good properties as high diffraction efficiencies, low noise, self-developing, eas ...
Preview of “ZEISS Microscopy Online ...Aperture and Resolution”
... patterns (not points) known as Airy patterns. This phenomenon is caused by diffraction or scattering of the light as it passes through the minute parts and spaces in the specimen and the circular rear aperture of the objective. The limit up to which two smal ...
... patterns (not points) known as Airy patterns. This phenomenon is caused by diffraction or scattering of the light as it passes through the minute parts and spaces in the specimen and the circular rear aperture of the objective. The limit up to which two smal ...
Brock_Pirasteh_Sepiedeh_2012
... However, the lattice parameters of LaV xO3 increase by decreasing x from 1 to 0.92 accompanied by multiple oxidation states of vanadium of V 3+ and V4+ [15]. On the other hand, the value of magnetic transition temperature for the vanadium deficient compounds remains unchanged from that of the LaVO3 ...
... However, the lattice parameters of LaV xO3 increase by decreasing x from 1 to 0.92 accompanied by multiple oxidation states of vanadium of V 3+ and V4+ [15]. On the other hand, the value of magnetic transition temperature for the vanadium deficient compounds remains unchanged from that of the LaVO3 ...
Light amplificated by stimulated emission of radiation
... Bulk-optical resonators are used e.g. for solid-state bulk lasers. The transverse mode properties depend on the overall setup (including the length of air spaces), and mode sizes can vary significantly along the resonator. In some cases, the mode properties are also significantly influenced by effec ...
... Bulk-optical resonators are used e.g. for solid-state bulk lasers. The transverse mode properties depend on the overall setup (including the length of air spaces), and mode sizes can vary significantly along the resonator. In some cases, the mode properties are also significantly influenced by effec ...
An Atomic Source of Quantum Light - Institute for Quantum Science
... (a) Theoretically predicted relative intensity squeezing in the presence of loss. In the presence of loss the amount of squeezing obtained is not monotonically decreasing with increasing gain. (b) Loss in the signal (idler) channel is modelled as a beam splitter of transmissivity ηs(i) and a vacuum ...
... (a) Theoretically predicted relative intensity squeezing in the presence of loss. In the presence of loss the amount of squeezing obtained is not monotonically decreasing with increasing gain. (b) Loss in the signal (idler) channel is modelled as a beam splitter of transmissivity ηs(i) and a vacuum ...
MEMS Based Heavy Metal Detector Inas Raafat Ramsis
... fully integrated and can operate in the Infrared and visible region. The analysis shows that, a minimum resolution of 9nm at a wavelength of 1.45μm and a mechanical displacement of 160μm is achievable. Unlike the traditional Michelson interferometer which returns half of the optical power to the sou ...
... fully integrated and can operate in the Infrared and visible region. The analysis shows that, a minimum resolution of 9nm at a wavelength of 1.45μm and a mechanical displacement of 160μm is achievable. Unlike the traditional Michelson interferometer which returns half of the optical power to the sou ...
Optical coupling devices
... with the angle 0 de?ned as before. The factor \fgarises because the roof prism is tilted away from the normal. Useful devices may be made from these (any of The six possible spots are obtained by adding the 3 FIGS. 1-4 in some cases) using extra components. For example the use of a Fresnel bi-prism, ...
... with the angle 0 de?ned as before. The factor \fgarises because the roof prism is tilted away from the normal. Useful devices may be made from these (any of The six possible spots are obtained by adding the 3 FIGS. 1-4 in some cases) using extra components. For example the use of a Fresnel bi-prism, ...
Mode matching between waveguide and periodic dielectric waveguide
... Since Yablonovitch [1] and John [2] proposed the concept of photonic crystal, it has been widely used in optic communication system, such as muti-mode interference, wavelength splitter, direction coupler, and polarization beam splitter. Recently, a structure called periodic dielectric waveguide (PDW ...
... Since Yablonovitch [1] and John [2] proposed the concept of photonic crystal, it has been widely used in optic communication system, such as muti-mode interference, wavelength splitter, direction coupler, and polarization beam splitter. Recently, a structure called periodic dielectric waveguide (PDW ...
super-resolved fluorescence microscopy
... 2.1 Far-field. Resolution improvements have been made with confocal (Cremer and Cremer, 1978; Sheppard and Wilson, 1981; Brakenhoff et al., 1985)) and multiphoton microscopy (Zipfel et al., 2003; Hell and Stelzer, 2002). Both these methods allow for effective background suppression and have been imp ...
... 2.1 Far-field. Resolution improvements have been made with confocal (Cremer and Cremer, 1978; Sheppard and Wilson, 1981; Brakenhoff et al., 1985)) and multiphoton microscopy (Zipfel et al., 2003; Hell and Stelzer, 2002). Both these methods allow for effective background suppression and have been imp ...
Ultraviolet–visible spectroscopy

Ultraviolet–visible spectroscopy or ultraviolet-visible spectrophotometry (UV-Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region. This means it uses light in the visible and adjacent (near-UV and near-infrared [NIR]) ranges. The absorption or reflectance in the visible range directly affects the perceived color of the chemicals involved. In this region of the electromagnetic spectrum, molecules undergo electronic transitions. This technique is complementary to fluorescence spectroscopy, in that fluorescence deals with transitions from the excited state to the ground state, while absorption measures transitions from the ground state to the excited state.