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Electromagnetic forces for an arbitrary optical trapping of a spherical
... missing mechanical measurements in the world of microorganisms and cells that could be correlated to biochemical information. The importance of understanding the optical forces in dielectric beads under different incident beam conditions comes from the fact that they are the natural transducer for f ...
... missing mechanical measurements in the world of microorganisms and cells that could be correlated to biochemical information. The importance of understanding the optical forces in dielectric beads under different incident beam conditions comes from the fact that they are the natural transducer for f ...
Palladium Ultra Thin Layer Profiles Evaluation by Evanescent Light
... in the waveguide, c is the critical TIR angle and i c is the angle of light beam incidence upon the waveguide surface. Thus for example, the characteristic penetration depth of the evanescent field for vac 555 nm from a glass waveguide with n1 = 1.5 into the air is d = 79 nm. The DELI tech ...
... in the waveguide, c is the critical TIR angle and i c is the angle of light beam incidence upon the waveguide surface. Thus for example, the characteristic penetration depth of the evanescent field for vac 555 nm from a glass waveguide with n1 = 1.5 into the air is d = 79 nm. The DELI tech ...
Single Particle Spectroscopy Study of Metal-Film
... silver nanoparticles revealed evidence for the excitation of both horizontal and vertical plasmon modes. Distinct resonance features observed in the scattering spectra were assigned to specific modes based on a dipole-dipole interaction model. The experimental results suggest that low-loss silver na ...
... silver nanoparticles revealed evidence for the excitation of both horizontal and vertical plasmon modes. Distinct resonance features observed in the scattering spectra were assigned to specific modes based on a dipole-dipole interaction model. The experimental results suggest that low-loss silver na ...
Single Particle Spectroscopy Study of Metal-Film
... silver nanoparticles revealed evidence for the excitation of both horizontal and vertical plasmon modes. Distinct resonance features observed in the scattering spectra were assigned to specific modes based on a dipole-dipole interaction model. The experimental results suggest that low-loss silver na ...
... silver nanoparticles revealed evidence for the excitation of both horizontal and vertical plasmon modes. Distinct resonance features observed in the scattering spectra were assigned to specific modes based on a dipole-dipole interaction model. The experimental results suggest that low-loss silver na ...
Phonon Laser Action in a Tunable Two-Level System
... of the parametric instability [28] of cavity optomechanics [16] will be detailed elsewhere. The present cavity design also enables spectrally selective and tunable detection of phonons through absorption (red pump) by the two-level system. Analysis of the response shows that thermal phonons set a ba ...
... of the parametric instability [28] of cavity optomechanics [16] will be detailed elsewhere. The present cavity design also enables spectrally selective and tunable detection of phonons through absorption (red pump) by the two-level system. Analysis of the response shows that thermal phonons set a ba ...
Gigahertz frequency comb offset stabilization
... frequency domain with an uncertainty down to the 10−19 level [1]. Over the past 15 years, the generation and stabilization of such combs [2–4] has enabled control of the cycles of light, which represents a major achievement for laser research and high precision optical metrology [5,6]. The generated ...
... frequency domain with an uncertainty down to the 10−19 level [1]. Over the past 15 years, the generation and stabilization of such combs [2–4] has enabled control of the cycles of light, which represents a major achievement for laser research and high precision optical metrology [5,6]. The generated ...
A tunable low-energy photon source for high
... development and use of low-energy sources have recently become common in the ARPES community. These are typically laser sources: one such source supplies 7 eV photons by using the nonlinear optical crystal KBe2 BO3 F2 to generate the second harmonic of a frequency-tripled Nd:YVO4 laser,4 and a simil ...
... development and use of low-energy sources have recently become common in the ARPES community. These are typically laser sources: one such source supplies 7 eV photons by using the nonlinear optical crystal KBe2 BO3 F2 to generate the second harmonic of a frequency-tripled Nd:YVO4 laser,4 and a simil ...
Comprehensive and reliable diagnostics for the corona of laser
... corona in Sn-based plasmas due to less opacity ...
... corona in Sn-based plasmas due to less opacity ...
Generation of lattices of optical vortices
... induce periodic modulation of the refractive index of the medium and write effective phase gratings in it. The modulation is sufficient to force perpendicularly propagating probe laser beam to diffract14. This property could offer the interesting possibility of creating periodic structures in the re ...
... induce periodic modulation of the refractive index of the medium and write effective phase gratings in it. The modulation is sufficient to force perpendicularly propagating probe laser beam to diffract14. This property could offer the interesting possibility of creating periodic structures in the re ...
Growing Negative Pressure in Dissolved Solutes: Raman - HAL-Insu
... and promotes the highest possible reproducibility. The microscope (DM2500 Leica) objective compatible with this configuration was a Leica 50X long front distance (NA=0.50). Each Raman spectrum was obtained with an accumulation time of 120s. Spectra were treated with the Renishaw Wire 3 software. The ...
... and promotes the highest possible reproducibility. The microscope (DM2500 Leica) objective compatible with this configuration was a Leica 50X long front distance (NA=0.50). Each Raman spectrum was obtained with an accumulation time of 120s. Spectra were treated with the Renishaw Wire 3 software. The ...
Three-dimensional depth profiling of molecular structures
... fluence. It is clear that this precludes sputter depth profiling of molecular films, which was long deemed virtually impossible due to the damage accumulation effect. Only recently, it was discovered that damage accumulation could be prevented if cluster projectiles instead of atomic ions were used ...
... fluence. It is clear that this precludes sputter depth profiling of molecular films, which was long deemed virtually impossible due to the damage accumulation effect. Only recently, it was discovered that damage accumulation could be prevented if cluster projectiles instead of atomic ions were used ...
June 4 - The 7th International Conference on Surface Plasmon
... applications it is of great importance to know the exact optoelectronic properties of the devices used. With common far-field methods the large size of the laser spot after focusing prevents a spatial resolution below the diffraction limit. This leads to smearing of the spatial photocurrent maps, wh ...
... applications it is of great importance to know the exact optoelectronic properties of the devices used. With common far-field methods the large size of the laser spot after focusing prevents a spatial resolution below the diffraction limit. This leads to smearing of the spatial photocurrent maps, wh ...
Originally published as “Ultrafast spin polarization in a multiferroic
... As shown in Fig. 2 (a), the differential transient polarization ellipticity ΔηK = 1/2(ΔηKσ+ - ΔηKσ-) (red squares) between the σ+ and σ- pump beam allows us to minimize the thermal effect as the primary source of the net dichroism excited by the pump beam. In the following, we attribute this to the ...
... As shown in Fig. 2 (a), the differential transient polarization ellipticity ΔηK = 1/2(ΔηKσ+ - ΔηKσ-) (red squares) between the σ+ and σ- pump beam allows us to minimize the thermal effect as the primary source of the net dichroism excited by the pump beam. In the following, we attribute this to the ...
Atomic Spectroscopy
... interferences, and providing ample thermal energy to excite most of the free atoms in the sample. The ICPAES system provides a wide dynamic range and minimal chemical interferences. However, the optics design of an ICP-AES must have much greater resolution than that of an atomic absorption spectrome ...
... interferences, and providing ample thermal energy to excite most of the free atoms in the sample. The ICPAES system provides a wide dynamic range and minimal chemical interferences. However, the optics design of an ICP-AES must have much greater resolution than that of an atomic absorption spectrome ...
Ellipsometry of light scattering from multilayer coatings
... 633-nm wavelength as a function of the incidence angle ~i! on an opaque ~150-nm-thick! Al layer deposited on a glass substrate by electron-beam evaporation. As shown in this figure, the agreement between theory and experiment is rather successful because the sample was of low quality. The complex in ...
... 633-nm wavelength as a function of the incidence angle ~i! on an opaque ~150-nm-thick! Al layer deposited on a glass substrate by electron-beam evaporation. As shown in this figure, the agreement between theory and experiment is rather successful because the sample was of low quality. The complex in ...
The retrieval of ozone`s absorption coefficient in the stratosphere
... turbid media, and that the optical study of materials and other components provide information of the surface morphology and internal structure due to the interaction of light with matter. This approach is useful because make it possible to propose a diagnosis of the medium in a noninvasive way. In ...
... turbid media, and that the optical study of materials and other components provide information of the surface morphology and internal structure due to the interaction of light with matter. This approach is useful because make it possible to propose a diagnosis of the medium in a noninvasive way. In ...
The spatial shape of entangled photon states generated in
... A similar result has been obtained under the thin crystal approximation [17], where the mode function is now written as (p, q) ∝ E 0 (p + q). The signal and idler photons traverse two identical 2-f systems, with focal length fs = f i = f . The observation planes are assumed to be located at the foc ...
... A similar result has been obtained under the thin crystal approximation [17], where the mode function is now written as (p, q) ∝ E 0 (p + q). The signal and idler photons traverse two identical 2-f systems, with focal length fs = f i = f . The observation planes are assumed to be located at the foc ...
Total Internal Reflection Fluorescence
... NOTE: As the cells’ refractive index is typically higher than water, the incident angle of the illumination beam may need to be increased in order to achieve TIR at this new surface. ALTERNATE PROTOCOL ...
... NOTE: As the cells’ refractive index is typically higher than water, the incident angle of the illumination beam may need to be increased in order to achieve TIR at this new surface. ALTERNATE PROTOCOL ...
Factors Toward The Development Of A Robust Surface Plasmon
... consideration when it comes to biosensing applications. The PSP sensor is based on a thin film gold planar [7], which reaches its maximal sensitivity for very small molecules. However, this mode achieved low detection limits for larger molecules. The LSP sensor uses more spatially confined nanostruc ...
... consideration when it comes to biosensing applications. The PSP sensor is based on a thin film gold planar [7], which reaches its maximal sensitivity for very small molecules. However, this mode achieved low detection limits for larger molecules. The LSP sensor uses more spatially confined nanostruc ...
Ultra–large field-of-view two-photon microscopy
... The design of the scan system begins with the selection of the objective. We seek a field-ofview that encompasses 10 mm, a numerical aperture (NA) to achieve 1-µm resolution, and a back aperture that does not exceed 25 mm. The singular choice is a 4-times magnification (f = 45 mm), 0.28 NA air-immer ...
... The design of the scan system begins with the selection of the objective. We seek a field-ofview that encompasses 10 mm, a numerical aperture (NA) to achieve 1-µm resolution, and a back aperture that does not exceed 25 mm. The singular choice is a 4-times magnification (f = 45 mm), 0.28 NA air-immer ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... communication to support high data transmission rates over the dispersive channels. The OFDM technique provides combat to the various limitations such as chromatic dispersion, modal dispersion etc. existing in optical communication system. In order to achieve the improved performance of optical OFDM ...
... communication to support high data transmission rates over the dispersive channels. The OFDM technique provides combat to the various limitations such as chromatic dispersion, modal dispersion etc. existing in optical communication system. In order to achieve the improved performance of optical OFDM ...
Mechanical monitoring of the degradation of hydrogels
... ElastoSensTM BIO2: the first contactless & non-destructive mechanical testing instrument To monitor degradation rate for drug delivery and tissue engineering ...
... ElastoSensTM BIO2: the first contactless & non-destructive mechanical testing instrument To monitor degradation rate for drug delivery and tissue engineering ...
Raman Spectroscopy on Semiconductor Nanowires
... Raman scattering is an inelastic light scattering non-destructive technique which allows the access mainly to the phonon modes at the Г point of materials and in some cases to the dispersion (Goni A.R. et al., 2001; Zunke et al., 1995; Weinstein et al., 1975). Since its discovery, Raman has been use ...
... Raman scattering is an inelastic light scattering non-destructive technique which allows the access mainly to the phonon modes at the Г point of materials and in some cases to the dispersion (Goni A.R. et al., 2001; Zunke et al., 1995; Weinstein et al., 1975). Since its discovery, Raman has been use ...
Measurement of the Number of Atoms in a Magneto
... Now, the laser can be locked to a frequency where the error-signal crosses zero, corresponding to the wavelength of a transition or a cross-over in between two transitions. If the wavelength changes slightly, the angle of the grating is adjusted with a piezo such that the wavelength is once again on ...
... Now, the laser can be locked to a frequency where the error-signal crosses zero, corresponding to the wavelength of a transition or a cross-over in between two transitions. If the wavelength changes slightly, the angle of the grating is adjusted with a piezo such that the wavelength is once again on ...
ABSTRACT Dissertation: STUDIES OF
... interest and much research is focused on these phenomena. More over, due to the short effective wavelength of surface Plasmon polaritons, (or surface plamsons as they are often called), nano-optical circuits integrated with electronics appear to be possible. Recently, there have been many studies o ...
... interest and much research is focused on these phenomena. More over, due to the short effective wavelength of surface Plasmon polaritons, (or surface plamsons as they are often called), nano-optical circuits integrated with electronics appear to be possible. Recently, there have been many studies o ...