Acousto-Optic Effect and Its use in Signal Processing Abstract 1
... When an optical wave interacts among the frequency, its interaction with the periodic modulation described in (2.4) and that generates the phase grating, can give rise to diffraction of the incident beam . The diffracted light may, however, interact again with the acoustic rescattering through the c ...
... When an optical wave interacts among the frequency, its interaction with the periodic modulation described in (2.4) and that generates the phase grating, can give rise to diffraction of the incident beam . The diffracted light may, however, interact again with the acoustic rescattering through the c ...
Saturation
... Since the absorption profile of a homogeneously broadened line is Lorentzian, the induced absorption probability is B12 ( ) L( 0 ) And the saturation parameter is B12 ( ) S L( 0 ) S ( 0 ) ...
... Since the absorption profile of a homogeneously broadened line is Lorentzian, the induced absorption probability is B12 ( ) L( 0 ) And the saturation parameter is B12 ( ) S L( 0 ) S ( 0 ) ...
Interferometric back focal plane microellipsometry
... in Fig. 5. In the Au and Al data, d increases and decreases along the horizontal and vertical directions, respectively, as expected from Eqs. ~17!, and the nodal lines along the diagonals as predicted in Eq. ~18! are clearly visible. The averages of the four d lines given in Eqs. ~17! from the diffe ...
... in Fig. 5. In the Au and Al data, d increases and decreases along the horizontal and vertical directions, respectively, as expected from Eqs. ~17!, and the nodal lines along the diagonals as predicted in Eq. ~18! are clearly visible. The averages of the four d lines given in Eqs. ~17! from the diffe ...
Self-Organization of Atomic Samples in Resonators and Collective Light Forces.
... between -1.5 GHz and -6 GHz relative to the atomic 6S1/2 , Fg = 4 → 6P3/2 , Fe = 5 transition, large compared to the excited-state hyperfine structure. The detuning between the pump light and the T EM00 cavity mode is labelled ∆c . The detuning range where transverse modes of the near-confocal cavit ...
... between -1.5 GHz and -6 GHz relative to the atomic 6S1/2 , Fg = 4 → 6P3/2 , Fe = 5 transition, large compared to the excited-state hyperfine structure. The detuning between the pump light and the T EM00 cavity mode is labelled ∆c . The detuning range where transverse modes of the near-confocal cavit ...
Reflection-mode scanning near-field optical microscopy: Influence
... point of shear-force contact when the optical aperture is still some distance away from the surface and ~2! the angular dependence of the light emitted from the tip. It has already been demonstrated that the far-field emission pattern of a SNOM tip depends on the aperture size.13 A large aperture wi ...
... point of shear-force contact when the optical aperture is still some distance away from the surface and ~2! the angular dependence of the light emitted from the tip. It has already been demonstrated that the far-field emission pattern of a SNOM tip depends on the aperture size.13 A large aperture wi ...
Phase contrast and DIC - Nikon Imaging Center at UCSF
... • Like phase contrast uses interference to convert phase difference to intensity difference • Interferes pairs of neighboring waves that travel close together through sample ...
... • Like phase contrast uses interference to convert phase difference to intensity difference • Interferes pairs of neighboring waves that travel close together through sample ...
General principles of spectroscopy and spectroscopic analysis
... of n by the speed of light, 3 1010 cm s1, gives the frequency that is directly proportional to the energy. The energies of infrared radiation range from 48 kJ mol1 at 2500 nm to 2.4 kJ mol1 at 50,000 nm. These low energies are not sufficient to cause electron transitions but they are sufficient ...
... of n by the speed of light, 3 1010 cm s1, gives the frequency that is directly proportional to the energy. The energies of infrared radiation range from 48 kJ mol1 at 2500 nm to 2.4 kJ mol1 at 50,000 nm. These low energies are not sufficient to cause electron transitions but they are sufficient ...
Temperature Tuning Characteristics of Periodically Poled Lithium
... The phase matching temperature for this PPLN sample (with a periodicity of 5 µm) was calculated theoretically using the temperature dependent Sellemier equations4 and was found to be 113.14°C, which is in close agreement with the experimentally obtained value of 113°C. However, the broadband nature ...
... The phase matching temperature for this PPLN sample (with a periodicity of 5 µm) was calculated theoretically using the temperature dependent Sellemier equations4 and was found to be 113.14°C, which is in close agreement with the experimentally obtained value of 113°C. However, the broadband nature ...
Near-perfect hologram reconstruction with a spatial light modulator
... by properly dividing a DOE into assigned and unassigned regions [9]. However, typical Fourier holograms usually exhibit a huge intensity contrast of several orders of magnitude between their central zero-order Fourier component, and the outer higher-order components. Techniques which shape such a hi ...
... by properly dividing a DOE into assigned and unassigned regions [9]. However, typical Fourier holograms usually exhibit a huge intensity contrast of several orders of magnitude between their central zero-order Fourier component, and the outer higher-order components. Techniques which shape such a hi ...
Joule Expansion Imaging Techniques on Microlectronic Devices
... To compare both methods, we have measured, on the centre of sample B, the displacement created by a thermal excitation frequency f=10 kHz and with various amplitude values V0. In this case, the laser probe is focused on one point, consequently we do not use the galvanometric mirrors but a classical ...
... To compare both methods, we have measured, on the centre of sample B, the displacement created by a thermal excitation frequency f=10 kHz and with various amplitude values V0. In this case, the laser probe is focused on one point, consequently we do not use the galvanometric mirrors but a classical ...
True-False Questions
... Over the centuries, people have struggled to understand what light is. So elusive this has been that a great many theories have been proposed, only to be discarded. About 2,000 years ago, the characteristics of light were defined by the way it behaved under a variety of conditions (geometric optics) ...
... Over the centuries, people have struggled to understand what light is. So elusive this has been that a great many theories have been proposed, only to be discarded. About 2,000 years ago, the characteristics of light were defined by the way it behaved under a variety of conditions (geometric optics) ...
Pulsed-source and swept-source spectral-domain optical coherence tomography with reduced motion artifacts
... readout rate. The effective signal acquisition time of the system in this case is given by the pulse duration rather than the exposure time of the camera. As a result, snap-shot A-line profiles can be obtained with freedom from sample or probe motion. This technique is conceptually similar to the us ...
... readout rate. The effective signal acquisition time of the system in this case is given by the pulse duration rather than the exposure time of the camera. As a result, snap-shot A-line profiles can be obtained with freedom from sample or probe motion. This technique is conceptually similar to the us ...
Iterative reconstruction algorithm for optoacoustic imaging
... been used to maximize the information that is acquired from the optoacoustic sources. To increase the contrast of interesting structures relative to background absorption and to reduce artifacts, usually a filtering of either the acoustic signals prior to backprojection or of the reconstructed image ...
... been used to maximize the information that is acquired from the optoacoustic sources. To increase the contrast of interesting structures relative to background absorption and to reduce artifacts, usually a filtering of either the acoustic signals prior to backprojection or of the reconstructed image ...
Time-resolved coherent anti-Stokes Raman scattering microscopy: Imaging based on Raman free induction decay
... torily reproducing the characteristic features of the observed decay curve. The temporal resolution of the T-CARS microscope is given by the instrumental response function 共IRF兲 that has been independently measured by detecting the solely nonresonant coherent radiation originating from the glass sub ...
... torily reproducing the characteristic features of the observed decay curve. The temporal resolution of the T-CARS microscope is given by the instrumental response function 共IRF兲 that has been independently measured by detecting the solely nonresonant coherent radiation originating from the glass sub ...
Electromagnetic Wave Ray Optics Wave Optics
... Further, the power transmitted also decreases nearly as the inverse square of the distance hence the signal becomes weak as the distance increases, which limits the range of transmission by this mode. - The ground wave attenuation increases with frequency, so the transmission via this mode is in pra ...
... Further, the power transmitted also decreases nearly as the inverse square of the distance hence the signal becomes weak as the distance increases, which limits the range of transmission by this mode. - The ground wave attenuation increases with frequency, so the transmission via this mode is in pra ...
optical pumping of rubidium
... corresponding Zeeman levels is forced and, as a result, a deviation from pumping equilibrium. In the other case, the frequency of the irradiating HF field can be slowly varied at constant magnetic field strength. Here, the absorption changes each time ∆E = hf reaches the spacing between neighbouring ...
... corresponding Zeeman levels is forced and, as a result, a deviation from pumping equilibrium. In the other case, the frequency of the irradiating HF field can be slowly varied at constant magnetic field strength. Here, the absorption changes each time ∆E = hf reaches the spacing between neighbouring ...
Slowdown of light due to exciton-polariton propagation in ZnO
... transmitted through a 0.55-mm-thick Cermet ZnO sample in the α-measurement geometry (kc, E⊥c). Several important features can be noticed. First of all, the light could only be transmitted when photon energies are below 3.360 eV, which indicates strong near-band-edge absorption at the higher energie ...
... transmitted through a 0.55-mm-thick Cermet ZnO sample in the α-measurement geometry (kc, E⊥c). Several important features can be noticed. First of all, the light could only be transmitted when photon energies are below 3.360 eV, which indicates strong near-band-edge absorption at the higher energie ...
SLR-17-03e
... For light sources with integrated electronics this "Electronic light source control gear" should be components between the supply and the light emitting elements. The definition was derived from IEC and CIE, where a light source is the light emitting element. Provisions for "electronic light source ...
... For light sources with integrated electronics this "Electronic light source control gear" should be components between the supply and the light emitting elements. The definition was derived from IEC and CIE, where a light source is the light emitting element. Provisions for "electronic light source ...
State University of New York at New Paltz
... bouncing off a wall. No one had actually seen particles of light, but even now it's easy to explain why that might be. The particles could be too small, or moving too fast, to be seen, or perhaps our eyes see right through them. The idea of the ‘light wave’ came from Christian Huygens, who proposed ...
... bouncing off a wall. No one had actually seen particles of light, but even now it's easy to explain why that might be. The particles could be too small, or moving too fast, to be seen, or perhaps our eyes see right through them. The idea of the ‘light wave’ came from Christian Huygens, who proposed ...
21. Specific rotation of sugar solution
... E-vector of the linearly polarized light oscillates on one level – called polarization level, which is determined by the direction of the oscillations of the E-vector and direction of light propagation. Therefore this light is called flat polarized as well. Endpoint of the E-vector of the circularly ...
... E-vector of the linearly polarized light oscillates on one level – called polarization level, which is determined by the direction of the oscillations of the E-vector and direction of light propagation. Therefore this light is called flat polarized as well. Endpoint of the E-vector of the circularly ...
Skylights
... below. This factor is determined by the geometry of the light well and the reflectance of the surfaces of the light well. To calculate a WF, you need to first determine the well cavity ratio (WCR) and the reflectances of the well surfaces. ...
... below. This factor is determined by the geometry of the light well and the reflectance of the surfaces of the light well. To calculate a WF, you need to first determine the well cavity ratio (WCR) and the reflectances of the well surfaces. ...
Reflection of X-rays with change of frequency
... glancing angles less than that at which any Bragg reflection of monochromatic X-rays by the crystal could appear. As in the case of light, however, we are not restricted to considering stratifications which are identifiable with sound-waves, and may extend the application ofequations(I), (2) and (3) ...
... glancing angles less than that at which any Bragg reflection of monochromatic X-rays by the crystal could appear. As in the case of light, however, we are not restricted to considering stratifications which are identifiable with sound-waves, and may extend the application ofequations(I), (2) and (3) ...
Components of Optical Instruments, Cont…
... For Qualitative Analysis: (interested in the features of the spectrum) 1) It should be appreciated that a narrower slit should be preferred for best wavelengths resolution. 2) However, it should be clear that as the slit width gets narrower and narrower, the radiant power reaching the detector will ...
... For Qualitative Analysis: (interested in the features of the spectrum) 1) It should be appreciated that a narrower slit should be preferred for best wavelengths resolution. 2) However, it should be clear that as the slit width gets narrower and narrower, the radiant power reaching the detector will ...
Circular Dichroism (CD) and Optical Rotatory Dispersion (ORD
... CD is more commonly used than ORD to study biomolecules. - Better resolution (the ORD signal is spread over a wider range). - Better sensitivity. - Easier to assign (1:1 correspondence between absorption peaks and CD signals). ...
... CD is more commonly used than ORD to study biomolecules. - Better resolution (the ORD signal is spread over a wider range). - Better sensitivity. - Easier to assign (1:1 correspondence between absorption peaks and CD signals). ...
Time-resolved coherent anti-Stokes Raman scattering: imaging based on Raman free induction decay
... decay curve. The temporal resolution of the T-CARS microscope is given by the instrumental response function 共IRF兲 that has been independently measured by detecting the solely nonresonant coherent radiation originating from the glass substrate. The FWHM of the IRF amounts to 200 fs. Next, we apply t ...
... decay curve. The temporal resolution of the T-CARS microscope is given by the instrumental response function 共IRF兲 that has been independently measured by detecting the solely nonresonant coherent radiation originating from the glass substrate. The FWHM of the IRF amounts to 200 fs. Next, we apply t ...