Theoretical and experimental characterization of coherent anti-Stokes Raman scattering microscopy
... the radiation from an ensemble of Hertzian dipoles induced by pump and Stokes beams.39 For the research reported here we used the Green’s function method to calculate the CARS signal from an arbitrary sample generated with tightly focused Gaussian beams. We present the results of our systematic inve ...
... the radiation from an ensemble of Hertzian dipoles induced by pump and Stokes beams.39 For the research reported here we used the Green’s function method to calculate the CARS signal from an arbitrary sample generated with tightly focused Gaussian beams. We present the results of our systematic inve ...
Adaptive-Optics Compensation through a High-Gain Raman Amplifier of
... The applicability of Raman amplification to the problem ofhigh-power laser propagation through a turbulent atmosphere was investigated in a two-part experimental program. The goal of the program wasto determine the extent of phasefront preservation possible in a high-gain Raman amplifier. The utilit ...
... The applicability of Raman amplification to the problem ofhigh-power laser propagation through a turbulent atmosphere was investigated in a two-part experimental program. The goal of the program wasto determine the extent of phasefront preservation possible in a high-gain Raman amplifier. The utilit ...
Rayleigh Scattering
... • The technique is not species selective, since all atoms/molecules/particles t / l l / ti l scatter tt att the th same wavelength. • For accurate thermometry, the Rayleigh cross sections for individual species must be taken into account, which is hard work in a twodimensional image since the mole f ...
... • The technique is not species selective, since all atoms/molecules/particles t / l l / ti l scatter tt att the th same wavelength. • For accurate thermometry, the Rayleigh cross sections for individual species must be taken into account, which is hard work in a twodimensional image since the mole f ...
SHS_OH_flame_ApplOpt_revision_RJB
... The SHS instrument is illustrated in Figure 2 in the boxed area. It consists of a spectral bandpass filter (~ 3 nm FWHM), a beamsplitter, and two matched gratings aligned at an angle of ~5.3 degrees. The remainder of the experimental set-up is also pictured in Figure 2. The light source is a Deuter ...
... The SHS instrument is illustrated in Figure 2 in the boxed area. It consists of a spectral bandpass filter (~ 3 nm FWHM), a beamsplitter, and two matched gratings aligned at an angle of ~5.3 degrees. The remainder of the experimental set-up is also pictured in Figure 2. The light source is a Deuter ...
Scanning angle total internal reflection Raman spectroscopy and
... In Chapter 3, improvement of the scanning angle TIR Raman microscope and a Raman signal enhancement technique are described for the TIR geometry using a thin, smooth, gold film at the prism / sample interface as a means to increase the magnitude of the mean squared electric field (MSEF) encountered ...
... In Chapter 3, improvement of the scanning angle TIR Raman microscope and a Raman signal enhancement technique are described for the TIR geometry using a thin, smooth, gold film at the prism / sample interface as a means to increase the magnitude of the mean squared electric field (MSEF) encountered ...
K. S. Al Mugren, Y. El Sayed, H. Shoukry, A. El Taher
... of CuO in the composition. They have been altered from transparent green to slightly dark green with increasing CuO from 10 to 20 mol%. The change in color of the prepared glass samples may be due to the copper ions optical absorption caused by electronic transitions within d orbital. Copper, has a ...
... of CuO in the composition. They have been altered from transparent green to slightly dark green with increasing CuO from 10 to 20 mol%. The change in color of the prepared glass samples may be due to the copper ions optical absorption caused by electronic transitions within d orbital. Copper, has a ...
Doppler-Free Saturated Absorption Spectroscopy of Rubidium Using a Tunable Diode Laser
... A double photodiode amplifier circuit (JILA ND025AX) was built, set for manual gain adjusting, and tested. The optical equipment needed for saturated absorption spectroscopy was arranged as shown in Figure 2. The optical isolator was aligned to maximize transmission, and the half-wave plate was adj ...
... A double photodiode amplifier circuit (JILA ND025AX) was built, set for manual gain adjusting, and tested. The optical equipment needed for saturated absorption spectroscopy was arranged as shown in Figure 2. The optical isolator was aligned to maximize transmission, and the half-wave plate was adj ...
MONOTONIC TUNING OF PLASMON RESONANCE USING
... surface-enhanced Raman scattering (SERS). The highly sensitivity of SERS is achieved through the strong coupling between the LSPR of substrates, excitation laser and vibrational mode of a molecule. Therefore, the tunability of plasmon resonance holds great promise for high sensitive SERS and it is d ...
... surface-enhanced Raman scattering (SERS). The highly sensitivity of SERS is achieved through the strong coupling between the LSPR of substrates, excitation laser and vibrational mode of a molecule. Therefore, the tunability of plasmon resonance holds great promise for high sensitive SERS and it is d ...
Improved Intrapulse Raman Scattering Control via Asymmetric Airy
... values of the bandwidth or σ are expected to give similar results because of the scaling properties of Airy pulses. The generalized nonlinear Schrödinger equation [18] was employed to analyze the propagation of Airy pulses in a large effective area fiber (LEAF) (see Methods in Ref. [19]). Figures 2( ...
... values of the bandwidth or σ are expected to give similar results because of the scaling properties of Airy pulses. The generalized nonlinear Schrödinger equation [18] was employed to analyze the propagation of Airy pulses in a large effective area fiber (LEAF) (see Methods in Ref. [19]). Figures 2( ...
PDF 380 KB
... viscous nature, which is attributed to its uniform and less mobile three-dimensional hydrogen bonding network in comparison to water.5,6 Under compression, when molecules are brought closer, they reorient themselves to counter steric hindrances and facilitate close packing, which subsequently result ...
... viscous nature, which is attributed to its uniform and less mobile three-dimensional hydrogen bonding network in comparison to water.5,6 Under compression, when molecules are brought closer, they reorient themselves to counter steric hindrances and facilitate close packing, which subsequently result ...
Results from an Extremely Sensitive Rayleigh
... For the lowest altitude channel, Raman scattering will be observed rather that Rayleigh or Mie. Raman scattering differs greatly from the first two types because it involves inelastic scattering between the incident light and particle scatterer. In Raman scattering, the incident light excites the at ...
... For the lowest altitude channel, Raman scattering will be observed rather that Rayleigh or Mie. Raman scattering differs greatly from the first two types because it involves inelastic scattering between the incident light and particle scatterer. In Raman scattering, the incident light excites the at ...
Fluorescence Spectroscopy
... • Mirror-image rule typically applies when only S0 Æ S1 excitation takes place g rule are observed when S0 Æ • Deviations from the mirror-image S2 or transitions to even higher excited states also take place ...
... • Mirror-image rule typically applies when only S0 Æ S1 excitation takes place g rule are observed when S0 Æ • Deviations from the mirror-image S2 or transitions to even higher excited states also take place ...
[pdf]
... the burned layer of the skin is larger, the number of moving erythrocytes in the investigated volume is smaller; as a result, the spectrum of scattered intensity fluctuations becomes narrower. In perspectives, the results of experimental study, which are presented in this paper, might be used as a b ...
... the burned layer of the skin is larger, the number of moving erythrocytes in the investigated volume is smaller; as a result, the spectrum of scattered intensity fluctuations becomes narrower. In perspectives, the results of experimental study, which are presented in this paper, might be used as a b ...
[pdf]
... through optically dense media is caused by the possible applicability of these effects for tissue characterization and imaging in biology and medicine.1–4 One of the general properties of a multiple scattering medium which is observed in the experiments with a coherent probe beam is the formation of ...
... through optically dense media is caused by the possible applicability of these effects for tissue characterization and imaging in biology and medicine.1–4 One of the general properties of a multiple scattering medium which is observed in the experiments with a coherent probe beam is the formation of ...
Theoretical Modeling of Magnesium Ion Imprints in the Raman
... The metal ions obviously have no vibrational spectra themselves. The specific spectroscopic signal comes from the perturbed liquid water structure in the vicinity of the ion. Potentially, the weak water-water, metal-water, and other noncovalent interactions are involved, which makes the Raman techni ...
... The metal ions obviously have no vibrational spectra themselves. The specific spectroscopic signal comes from the perturbed liquid water structure in the vicinity of the ion. Potentially, the weak water-water, metal-water, and other noncovalent interactions are involved, which makes the Raman techni ...
Ultracold Triplet Molecules in the Rovibrational
... manner described in [24], we can map out the Bloch bands in momentum space. After 13 ms of ballistic expansion, the corresponding atomic distribution is recorded with standard absorption imaging (see left inset in Fig. 2). For our signals, we only count atoms in the central square zone, correspondin ...
... manner described in [24], we can map out the Bloch bands in momentum space. After 13 ms of ballistic expansion, the corresponding atomic distribution is recorded with standard absorption imaging (see left inset in Fig. 2). For our signals, we only count atoms in the central square zone, correspondin ...
Quantum Optics and Photonics S. Ezekiel, S. Shahriar Plasma Physics
... Experimental traces are presented in Figure 8. As a first step in investigation of spin echo in NV-diamond, we studied optical pumping effect on population of ground state. Regular NMR signal was detected at 430 MHz with applied magnetic field of 920 Gauss. RF power was modulated by square wave with ...
... Experimental traces are presented in Figure 8. As a first step in investigation of spin echo in NV-diamond, we studied optical pumping effect on population of ground state. Regular NMR signal was detected at 430 MHz with applied magnetic field of 920 Gauss. RF power was modulated by square wave with ...
Librons Observed in Liquid Acetonitrile by Hyper-Rayleigh Scattering V 84, N 6
... electromagnetic wave is a polariton, which has a dispersion relation v 2 ´共v兲 苷 c2 K 2 with two branches [5]. For a TO mode with nTO 苷 2 cm21 , the lower branch is an almost purely mechanical TO polariton with frequency v 艐 vTO independent of K. The upper branch is an LO mode with v ~ K, which is to ...
... electromagnetic wave is a polariton, which has a dispersion relation v 2 ´共v兲 苷 c2 K 2 with two branches [5]. For a TO mode with nTO 苷 2 cm21 , the lower branch is an almost purely mechanical TO polariton with frequency v 艐 vTO independent of K. The upper branch is an LO mode with v ~ K, which is to ...
Rayleigh scattering by gas molecules: why is the sky blue?
... Angle, in radians, is simply the length of an arc of a circle divided by its radius and clearly the largest angle subtended by such an arc is 2π. We can use the same idea in two dimensions and state that the solid angle is the area of a selected patch on a spherical shell, δ AS divided by the square ...
... Angle, in radians, is simply the length of an arc of a circle divided by its radius and clearly the largest angle subtended by such an arc is 2π. We can use the same idea in two dimensions and state that the solid angle is the area of a selected patch on a spherical shell, δ AS divided by the square ...
laser spectroscopy
... The hyperfine structure of both 85Rb and 87Rb will be observed in this experiment; however, it is the hyperfine structure of 87Rb that will be studied. The split of energy levels by the hyperfine interaction is shown in the right column of Figure 3 for 87Rb. These levels are known as hyperfine level ...
... The hyperfine structure of both 85Rb and 87Rb will be observed in this experiment; however, it is the hyperfine structure of 87Rb that will be studied. The split of energy levels by the hyperfine interaction is shown in the right column of Figure 3 for 87Rb. These levels are known as hyperfine level ...
Relation between s-Polarized and p-Polarized Internal Reflection
... Polarized infrared (IR) spectroscopy allows one to probe the orientation of chemical bonds.1-17 The features of polarized IR spectroscopy include (1) simultaneous probing of a wide variety of chemical bonds in organic, inorganic or hybrid materials, (2) sensitivity to measure films down to molecular ...
... Polarized infrared (IR) spectroscopy allows one to probe the orientation of chemical bonds.1-17 The features of polarized IR spectroscopy include (1) simultaneous probing of a wide variety of chemical bonds in organic, inorganic or hybrid materials, (2) sensitivity to measure films down to molecular ...
Nonlinear optics in daily life
... lasers. The Raman laser microprobe will be discussed later. Diamond has also produced a Raman laser. It remains to be seen how many of the different Raman laser types will be commercially practical. The largest Raman shifts come from pressurized hydrogen and methane, which have the advantage that, a ...
... lasers. The Raman laser microprobe will be discussed later. Diamond has also produced a Raman laser. It remains to be seen how many of the different Raman laser types will be commercially practical. The largest Raman shifts come from pressurized hydrogen and methane, which have the advantage that, a ...
Calculation of Complete Absorption and Intensity of Optical
... from laboratory plasma. It consists of continuous bremsstrahlung and recombination radiation superposed by line radiation. We now visualize the plasma to be homogenous and to increase steadily its optical depth in the direction of observation. The spectral radiance will increase until it reaches the ...
... from laboratory plasma. It consists of continuous bremsstrahlung and recombination radiation superposed by line radiation. We now visualize the plasma to be homogenous and to increase steadily its optical depth in the direction of observation. The spectral radiance will increase until it reaches the ...
Phase function
... particles which has much smaller size than the wavelength) need to apply Mie scattering theory ...
... particles which has much smaller size than the wavelength) need to apply Mie scattering theory ...
Implementing the Theory of Sum Frequency Generation Vibrational
... light is resonantly enhanced when the frequency of the tuneable infrared beam coincides with a vibrational mode of the molecules at the interface. By detecting the sum frequency (SF) light as a function of infrared frequency, a vibrational spectrum is obtained, which is up-shifted into the visible r ...
... light is resonantly enhanced when the frequency of the tuneable infrared beam coincides with a vibrational mode of the molecules at the interface. By detecting the sum frequency (SF) light as a function of infrared frequency, a vibrational spectrum is obtained, which is up-shifted into the visible r ...