Fiber Waveguide
... change at the core–cladding interface, such fibers are called step-index fibers. In a different type of fiber, known as graded-index fiber, the refractive index decreases gradually inside the core. Considerable insight in the guiding properties of optical fibers can be gained by using a ray picture ...
... change at the core–cladding interface, such fibers are called step-index fibers. In a different type of fiber, known as graded-index fiber, the refractive index decreases gradually inside the core. Considerable insight in the guiding properties of optical fibers can be gained by using a ray picture ...
OSA journals template (MSWORD)
... The main goal here is to design a dielectric graded index sphere with a radially symmetric biaxial permittivity profile. This device is required to show different functions in its equatorial and polar planes. Due to two possible polarizations in each of these planes, the designed lens offers general ...
... The main goal here is to design a dielectric graded index sphere with a radially symmetric biaxial permittivity profile. This device is required to show different functions in its equatorial and polar planes. Due to two possible polarizations in each of these planes, the designed lens offers general ...
Guided photoluminescence study of Nd
... A main objective in silicon photonics research is the development of novel Sicompatible materials for the engineering of light sources directly integrated on optical chips [1-3]. Rare-earth (RE) doped-silicon-based matrices has gathered much attention as a possible way of realizing a Si-based source ...
... A main objective in silicon photonics research is the development of novel Sicompatible materials for the engineering of light sources directly integrated on optical chips [1-3]. Rare-earth (RE) doped-silicon-based matrices has gathered much attention as a possible way of realizing a Si-based source ...
The Femtosecond Frequency Comb: From
... The individual frequency components of the mode-locked laser could be observed by simply overlapping the beam from a single frequency laser with the mode-locked laser. When this combined beam is sent onto a fast photodiode, the resulting photocurrent will only be sufficiently fast to follow the diff ...
... The individual frequency components of the mode-locked laser could be observed by simply overlapping the beam from a single frequency laser with the mode-locked laser. When this combined beam is sent onto a fast photodiode, the resulting photocurrent will only be sufficiently fast to follow the diff ...
Ultra-thin plasmonic optical vortex plate based on phase
... of beam can also be directly generated by lasers as an intrinsic transverse mode11 or when an incident beam diffracts from fork-shaped intensity masks.10 Optical vortices are of great fundamental interest since they carry optical singularities5,12 and can attract and annihilate each other in pairs, ...
... of beam can also be directly generated by lasers as an intrinsic transverse mode11 or when an incident beam diffracts from fork-shaped intensity masks.10 Optical vortices are of great fundamental interest since they carry optical singularities5,12 and can attract and annihilate each other in pairs, ...
Polarimetric imaging of crystals - Werner Kaminsky
... The relevant body of research was begun in 1985 when Mickols et al. introduced the imaging differential polarization microscope.3 In this device various voltages were applied to a KH2PO4 crystal in a Pockels cell in order to modulate between orthogonal polarization states, or between left and right ...
... The relevant body of research was begun in 1985 when Mickols et al. introduced the imaging differential polarization microscope.3 In this device various voltages were applied to a KH2PO4 crystal in a Pockels cell in order to modulate between orthogonal polarization states, or between left and right ...
Optical Filters for Laser-based Fluorescence Microscopes
... Dichroic beamsplitters: Dichroics for laser applications should not only be made such that their reflection and transmission bands are compatible with the excitation and emission filters, but they also need to be coated with antireflection coatings in order to maximize transmission of the emission s ...
... Dichroic beamsplitters: Dichroics for laser applications should not only be made such that their reflection and transmission bands are compatible with the excitation and emission filters, but they also need to be coated with antireflection coatings in order to maximize transmission of the emission s ...
OM1 - Faculty of Engineering
... understand the meanings of the simple forms. With BST at A2, trace the beam until M2. Make sure M2 can capture the beam. Adjust M1 mounting post if necessary (do not accidentally knock down BST). Move BST to A5 (block the beam first). Using a plastic ruler, record the center-height h of the beam jus ...
... understand the meanings of the simple forms. With BST at A2, trace the beam until M2. Make sure M2 can capture the beam. Adjust M1 mounting post if necessary (do not accidentally knock down BST). Move BST to A5 (block the beam first). Using a plastic ruler, record the center-height h of the beam jus ...
Resolution-and throughput-enhanced spectroscopy using high
... the digital beams numerically through a high-throughput computational slit that is narrower than the physical entrance aperture of the spectrometer, improved spectral resolution can be achieved while reaping the light throughput benefits of a much larger entrance aperture. Figure 1a, shows the imag ...
... the digital beams numerically through a high-throughput computational slit that is narrower than the physical entrance aperture of the spectrometer, improved spectral resolution can be achieved while reaping the light throughput benefits of a much larger entrance aperture. Figure 1a, shows the imag ...
Michelson Interferometer
... [Remember, no determination of a physical quantity is complete without an assessment of its uncertainty. Think about how you will assess the uncertainty before you take any measurements and hence make sure that you have enough information to make a sensible assessment.] The experimental arrangement ...
... [Remember, no determination of a physical quantity is complete without an assessment of its uncertainty. Think about how you will assess the uncertainty before you take any measurements and hence make sure that you have enough information to make a sensible assessment.] The experimental arrangement ...
Müller cells separate between wavelengths to improve day vision
... layers. The results of the simulations are robust (see Supplementary Information), and show that Müller cells efficiency as light guides varies with wavelength. Representative light distributions, propagating through a Müller cell for blue (430 nm) and greenyellow (560 nm) wavelengths can be seen in ...
... layers. The results of the simulations are robust (see Supplementary Information), and show that Müller cells efficiency as light guides varies with wavelength. Representative light distributions, propagating through a Müller cell for blue (430 nm) and greenyellow (560 nm) wavelengths can be seen in ...
Helium Neon Laser - Educational Lasers
... By variation of the resonator mirrors (the set comprises 5 mirrors) the resonator properties and its influences on the laser power and stability are evaluated. Changing the resonator length and laser tube position continuously, the stability criterion of several resonators is evaluated. The possibil ...
... By variation of the resonator mirrors (the set comprises 5 mirrors) the resonator properties and its influences on the laser power and stability are evaluated. Changing the resonator length and laser tube position continuously, the stability criterion of several resonators is evaluated. The possibil ...
High-Repetition TDS System
... with the reduction in the pulsewidth of the femtosecond optical pulses, terahertz waves could be generated within a wider frequency ...
... with the reduction in the pulsewidth of the femtosecond optical pulses, terahertz waves could be generated within a wider frequency ...
WHITEPAPER Centration Measurement, Alignment
... case as the transparent region depends on the doping level and dopant type, so a LWIR head might be a suitable depending on application. Differences to VIS from the Operator Side In contrast to VIS systems, the light emitted from the focused autocollimator head cannot be seen by the naked eye which ...
... case as the transparent region depends on the doping level and dopant type, so a LWIR head might be a suitable depending on application. Differences to VIS from the Operator Side In contrast to VIS systems, the light emitted from the focused autocollimator head cannot be seen by the naked eye which ...
Polarimeter - ScholarWorks@UNO
... Each of the 25 possible‘ signals represents a different about an axis perpendicular to and passing through the term of the Fourier series that is developed by the polar center of its wide surfaces in the path of the beam of ized light interacting with the medium in sample cell 20 light 34. Other typ ...
... Each of the 25 possible‘ signals represents a different about an axis perpendicular to and passing through the term of the Fourier series that is developed by the polar center of its wide surfaces in the path of the beam of ized light interacting with the medium in sample cell 20 light 34. Other typ ...
Retroreflector
A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects light back to its source with a minimum of scattering. In a retroreflector an electromagnetic wavefront is reflected back along a vector that is parallel to but opposite in direction from the wave's source. The angle of incidence at which the device or surface reflects light in this way is greater than zero, unlike a planar mirror, which does this only if the mirror is exactly perpendicular to the wave front, having a zero angle of incidence.