Nondegenerate optical Kerr effect in semiconductors
... as the weak probe ( tp ::::: 58 ps ). Using this arrangment, we measure n 2 (2w; w) and {3(2w; w). At these wavelengths, the choice of the above materials is appropriate for examining the various dispersion regimes of n2 as predicted by the theory. An important parameter in the experiment is the sum ...
... as the weak probe ( tp ::::: 58 ps ). Using this arrangment, we measure n 2 (2w; w) and {3(2w; w). At these wavelengths, the choice of the above materials is appropriate for examining the various dispersion regimes of n2 as predicted by the theory. An important parameter in the experiment is the sum ...
High refractive index Fresnel lens on a fiber fabricated by
... increase by a factor of three (from Δn=0.12 to Δn=0.36). This leads to better light control in general, in particular in a tighter focal spot, which is advantageous for many applications. For example, in the case of optical trapping, a tighter focal spot allows trapping of smaller nanoparticles and ...
... increase by a factor of three (from Δn=0.12 to Δn=0.36). This leads to better light control in general, in particular in a tighter focal spot, which is advantageous for many applications. For example, in the case of optical trapping, a tighter focal spot allows trapping of smaller nanoparticles and ...
Second harmonic generation via total internal reflection quasi
... reflection angle. We followed this launching approach instead of the side evanescent wave coupling in order to focus this initial work on the operational principle rather than on technical issues such as the design of side coupling sections. At this reflection angle, we avoid open-loop trajectories ...
... reflection angle. We followed this launching approach instead of the side evanescent wave coupling in order to focus this initial work on the operational principle rather than on technical issues such as the design of side coupling sections. At this reflection angle, we avoid open-loop trajectories ...
PDF
... orientation, which then promotes formation of self-assembled linear structures directed along the beam scanning direction. These structures are then shaped into desired patterns via continuous steering of the laser beam with intensity above a certain threshold value (Fig. 1a– c), as described in det ...
... orientation, which then promotes formation of self-assembled linear structures directed along the beam scanning direction. These structures are then shaped into desired patterns via continuous steering of the laser beam with intensity above a certain threshold value (Fig. 1a– c), as described in det ...
5. Optical fiber
... spot is formed on the screen. 5. Measure the distance between the output end of the optical fiber and the screen. Let this be “L”. 6. Also measure the diameter of the circular spot formed on the screen. Use the “Reference spot size indicator” printed on the back side of the graph paper to know the e ...
... spot is formed on the screen. 5. Measure the distance between the output end of the optical fiber and the screen. Let this be “L”. 6. Also measure the diameter of the circular spot formed on the screen. Use the “Reference spot size indicator” printed on the back side of the graph paper to know the e ...
TS2
... which is important in many applications. only in restricted bands of wavelength, coThe tendency for different frequencies of inciding with the photonic band gaps. This light to travel at different speeds is a crucial feature limits the range of potential applifactor in the design of telecommunicatio ...
... which is important in many applications. only in restricted bands of wavelength, coThe tendency for different frequencies of inciding with the photonic band gaps. This light to travel at different speeds is a crucial feature limits the range of potential applifactor in the design of telecommunicatio ...
Free Space Optical communication
... consequences. Unlike radio and microwave systems, FSO has higher data rate due to its high carrier frequency, low power requirements, no frequency license required and much smaller packaging [4]. In FSO links, atmospheric turbulence is capable of degrading the wave-front quality of a signal-carryin ...
... consequences. Unlike radio and microwave systems, FSO has higher data rate due to its high carrier frequency, low power requirements, no frequency license required and much smaller packaging [4]. In FSO links, atmospheric turbulence is capable of degrading the wave-front quality of a signal-carryin ...
spie07chiral
... Such solutions to the Fresnel Maxwell theory, subject to a gauge constraint, were published first in 1979. After patents were secured, the full theory of singular solutions to Maxwell’s equations without gauge constraints was released for publication in Physical Review in 1991. R. M. Kiehn, G. P. Ki ...
... Such solutions to the Fresnel Maxwell theory, subject to a gauge constraint, were published first in 1979. After patents were secured, the full theory of singular solutions to Maxwell’s equations without gauge constraints was released for publication in Physical Review in 1991. R. M. Kiehn, G. P. Ki ...
Imaging scanning tunneling microscope
... The prospect of creating photonic devices based on surface plasmon propagation is attracting increasing attention.1–5 The motivation has been to create miniaturized optics that would enable higher bandwidth optical computing, all-optical interconnects for telecommunications, or even ‘‘nano-lasers.’’ ...
... The prospect of creating photonic devices based on surface plasmon propagation is attracting increasing attention.1–5 The motivation has been to create miniaturized optics that would enable higher bandwidth optical computing, all-optical interconnects for telecommunications, or even ‘‘nano-lasers.’’ ...
Soft-x-ray interferometer for single-shot laser linewidth measurements
... visibility of the fringes.13 If several laser lines are emitting, their effect will be evident as modulations in the delay dependence of the visibility. All the spectral information is obtained in a single shot of the laser. The calibration of the path difference Dz of the system is given by Dz 2x ...
... visibility of the fringes.13 If several laser lines are emitting, their effect will be evident as modulations in the delay dependence of the visibility. All the spectral information is obtained in a single shot of the laser. The calibration of the path difference Dz of the system is given by Dz 2x ...
Imaging and Non-imaging System Modeling in ASAP
... expressed as resolution (modulation transfer function (MTF) and image size (magnification)). But if we dig more deeply into the origin and meaning of these requirements, we see that we can relate them to fundamental radiometric and photometric properties. Radiometry literally means the measurement a ...
... expressed as resolution (modulation transfer function (MTF) and image size (magnification)). But if we dig more deeply into the origin and meaning of these requirements, we see that we can relate them to fundamental radiometric and photometric properties. Radiometry literally means the measurement a ...
Two-color cross-correlation in small-angle static light
... fluctuations and shows high contrast intensity space variations, as vividly evidenced by the presence of speckles in the scattered pattern @1,2#. At a fixed point, the time correlation function of the intensity scattered by a sample is simply related to the dynamic properties of the scatterers. This ...
... fluctuations and shows high contrast intensity space variations, as vividly evidenced by the presence of speckles in the scattered pattern @1,2#. At a fixed point, the time correlation function of the intensity scattered by a sample is simply related to the dynamic properties of the scatterers. This ...
12. CONFOCAL MICROSCOPY • Confocal microscopy can render
... However, even with an instrument that is capable in principle of producing high resolution images, the amount of information in the final image depends also on how different the various regions of instrument appear, i.e. on contrast. ...
... However, even with an instrument that is capable in principle of producing high resolution images, the amount of information in the final image depends also on how different the various regions of instrument appear, i.e. on contrast. ...
Device for projecting and viewing stereoscopic pictures
... the backward rays, but also of the lateral sess the disadvantage that they have a right rays which are usually lost. In this manner and a wrong side, one of theends having about twice as many rays are utilized and to be placed before the eyes: if the other end the intensity obtained on the project-i ...
... the backward rays, but also of the lateral sess the disadvantage that they have a right rays which are usually lost. In this manner and a wrong side, one of theends having about twice as many rays are utilized and to be placed before the eyes: if the other end the intensity obtained on the project-i ...
A new approach for retrieving the UV–vis optical properties of
... optical power output of 0.450 W (M405D2, Thorlabs, Newton, NJ, USA). The LED is temperature-controlled and powered by a constant-current power supply to achieve a stable optical power output. The output from the LED is collimated using a single F/1.2 fused silica lens and optically filtered using a ...
... optical power output of 0.450 W (M405D2, Thorlabs, Newton, NJ, USA). The LED is temperature-controlled and powered by a constant-current power supply to achieve a stable optical power output. The output from the LED is collimated using a single F/1.2 fused silica lens and optically filtered using a ...
PC 481 Fiber Optics Lab Manual
... coupler allows two or more optical signals to be combined into one signal. The coupler can also be used to split the signals apart again. The fused coupler is the most common of the fibre couplers and the principle behind the fused couplers is that when two or more fibre cores are brought to within ...
... coupler allows two or more optical signals to be combined into one signal. The coupler can also be used to split the signals apart again. The fused coupler is the most common of the fibre couplers and the principle behind the fused couplers is that when two or more fibre cores are brought to within ...
Depth Estimation and Focus Recovery
... Then, we discuss the issue on focus recovery. There exist some problems in optical image processing like aberrations of camera, structure of zoom lens, blurring model and geometric optics and so on. Later, we will make a introduction to Fourier Optics and optics analyzed by the linear canonical tran ...
... Then, we discuss the issue on focus recovery. There exist some problems in optical image processing like aberrations of camera, structure of zoom lens, blurring model and geometric optics and so on. Later, we will make a introduction to Fourier Optics and optics analyzed by the linear canonical tran ...
Technologies - E
... alcohol isopropyl cleaning with an handkerchief or cotton for optical applications; ...
... alcohol isopropyl cleaning with an handkerchief or cotton for optical applications; ...
1 L4: Interference L4 INTERFERENCE Objectives Aims When you
... The key to understanding interference is the principle of superposition which says simply that the combined effect of several waves at any place at a particular instant of time is given by the sum (vector sum if the wave property is a vector) of the wave property for the individual waves. The contri ...
... The key to understanding interference is the principle of superposition which says simply that the combined effect of several waves at any place at a particular instant of time is given by the sum (vector sum if the wave property is a vector) of the wave property for the individual waves. The contri ...
Effect of pores on transmission properties of transparent ceramics
... can be hardly eliminated even the pore size is very small. It has been shown that ceramics are opaque when the porosity is more than 1% [12-13]. Thus, scattering by residual pores is considered as the main cause of preventing the transparency of ceramics. The pores are nanosized in the nano-ceramics ...
... can be hardly eliminated even the pore size is very small. It has been shown that ceramics are opaque when the porosity is more than 1% [12-13]. Thus, scattering by residual pores is considered as the main cause of preventing the transparency of ceramics. The pores are nanosized in the nano-ceramics ...