A light scattering study of non equilibrium fluctuations
... In this article, we introduce dynamic near field scattering as a powerful tool to study NEFs. Near field scattering (NFS) has been introduced in the late 1990’s as an alternative to conventional static and dynamic light scattering.23–26 In a NFS experiment, one typically observes the heterodyne cont ...
... In this article, we introduce dynamic near field scattering as a powerful tool to study NEFs. Near field scattering (NFS) has been introduced in the late 1990’s as an alternative to conventional static and dynamic light scattering.23–26 In a NFS experiment, one typically observes the heterodyne cont ...
Optical coherence tomography (OCT): a review
... to image microscopic structures in tissue at depths beyond the reach of conventional bright-field and confocal microscopes. Probing depths exceeding 2 cm have been demonstrated in transparent tissues, including the eye and the frog embryo [13], [14]. In the skin and other highly scattering tissues, ...
... to image microscopic structures in tissue at depths beyond the reach of conventional bright-field and confocal microscopes. Probing depths exceeding 2 cm have been demonstrated in transparent tissues, including the eye and the frog embryo [13], [14]. In the skin and other highly scattering tissues, ...
Fluorescence Fidelity Depends on Filters
... one to peer into the biological world at the micron length scale and beyond, allowing direct access into the spatial location and behavior of small molecules at the cellular level. This level of performance can be achieved only through careful instrument design and the use of highquality and high-pe ...
... one to peer into the biological world at the micron length scale and beyond, allowing direct access into the spatial location and behavior of small molecules at the cellular level. This level of performance can be achieved only through careful instrument design and the use of highquality and high-pe ...
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... The KSTAR ECEI system [6] is schematically shown in Fig.2a. The operation frequency and radial ranges are illustrated in Fig.2b. The front optics optically delivers the ECE radiation onto a pair of independent heterodyne detector arrays. The lenses in the front optics, made of high density polyethyl ...
... The KSTAR ECEI system [6] is schematically shown in Fig.2a. The operation frequency and radial ranges are illustrated in Fig.2b. The front optics optically delivers the ECE radiation onto a pair of independent heterodyne detector arrays. The lenses in the front optics, made of high density polyethyl ...
Template BR_Rec_2002.dot
... The distances over which digital signals can be transmitted on multimode and single-mode fibres without errors have “cliff effect” circuit length limits caused by “modal” and “chromatic” dispersion phenomena, respectively. Multimode fibres accept multiple input light rays (modes) form the light sour ...
... The distances over which digital signals can be transmitted on multimode and single-mode fibres without errors have “cliff effect” circuit length limits caused by “modal” and “chromatic” dispersion phenomena, respectively. Multimode fibres accept multiple input light rays (modes) form the light sour ...
Fiber-based optical parametric amplifiers and their applications
... provided, the focus is on the intriguing applications enabled by the parametric gain, such as all-optical signal sampling, time-demultiplexing, pulse generation, and wavelength conversion. As these amplifiers offer high gain and low noise at arbitrary wavelengths with proper fiber design and pump wa ...
... provided, the focus is on the intriguing applications enabled by the parametric gain, such as all-optical signal sampling, time-demultiplexing, pulse generation, and wavelength conversion. As these amplifiers offer high gain and low noise at arbitrary wavelengths with proper fiber design and pump wa ...
Numerical Analysis of Relative Phase and Amplitude at the
... There are several types of mechanisms for generating optical solitons. The first successful experiment was a model of two-cavities laser published 1984th year. During 1987. year, Berg and Christiansen proposed the first theoretical model for the soliton laser, they use Maxwell-Bloch equations to des ...
... There are several types of mechanisms for generating optical solitons. The first successful experiment was a model of two-cavities laser published 1984th year. During 1987. year, Berg and Christiansen proposed the first theoretical model for the soliton laser, they use Maxwell-Bloch equations to des ...
Pulse Propagation in Optical Fibers
... paradigm of data transmission, because of two main advantages that make it particularly in relation to wires: The optical fibers are completely immune to electromagnetic interference as they are made of dielectric material capable of transmitting pulses of light, which means that data is not corru ...
... paradigm of data transmission, because of two main advantages that make it particularly in relation to wires: The optical fibers are completely immune to electromagnetic interference as they are made of dielectric material capable of transmitting pulses of light, which means that data is not corru ...
Negative photoconductivity due to coherent trapping of electrons in
... for the observation of the n-GaAs spectrum, this shallow donor has been used as a model system for the Hydrogen atom in large magnetic fields. These spectra are studied at liquid helium temperature by monitoring the magnetic field dependence of the photoconductive signal while sweeping the magnetic ...
... for the observation of the n-GaAs spectrum, this shallow donor has been used as a model system for the Hydrogen atom in large magnetic fields. These spectra are studied at liquid helium temperature by monitoring the magnetic field dependence of the photoconductive signal while sweeping the magnetic ...
Aberration-free three-dimensional multiphoton imaging of neuronal
... of neurons. However, direct electrical recordings from thin dendrites and simultaneous recordings from multiple identified neurons are difficult to achieve and often not feasible, especially in the in vivo setting. Instead, optical sectioning techniques using two-photon excitation of fluorescent ind ...
... of neurons. However, direct electrical recordings from thin dendrites and simultaneous recordings from multiple identified neurons are difficult to achieve and often not feasible, especially in the in vivo setting. Instead, optical sectioning techniques using two-photon excitation of fluorescent ind ...
Analytical Expression for the Standing Wave Intensity in Photoresist
... substrate) is exposed to monochromatic light, standing waves are produced in the film. This effect has been well documented for such cases as antireflection coatings and photoresist exposure.1-5 In the former, the standing wave effect is used to reduce reflections from the substrate. In the latter, ...
... substrate) is exposed to monochromatic light, standing waves are produced in the film. This effect has been well documented for such cases as antireflection coatings and photoresist exposure.1-5 In the former, the standing wave effect is used to reduce reflections from the substrate. In the latter, ...
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... Recently, several reports have shown that cylindrical metal wires can act as waveguides for terahertz (THz) pulses [1, 2, 3]. The THz pulses propagate on these wires as surface plasmon polaritons having a radial polarization and are often referred to as Sommerfeld waves [3, 4]. It has been shown tha ...
... Recently, several reports have shown that cylindrical metal wires can act as waveguides for terahertz (THz) pulses [1, 2, 3]. The THz pulses propagate on these wires as surface plasmon polaritons having a radial polarization and are often referred to as Sommerfeld waves [3, 4]. It has been shown tha ...
Small-core chalcogenide microstructured fibers for the infrared
... was 7:7 μm. Furthermore, only a multimode MF was obtained. In the work presented here, we describe the fabrication, characterization, and modeling of MFs made of chalcogenide glasses from the system Sb-S-Ge (2SG). This glass was chosen to allow a reduction in the overall losses of the fabricated MFs ...
... was 7:7 μm. Furthermore, only a multimode MF was obtained. In the work presented here, we describe the fabrication, characterization, and modeling of MFs made of chalcogenide glasses from the system Sb-S-Ge (2SG). This glass was chosen to allow a reduction in the overall losses of the fabricated MFs ...
Simultaneous trapping of low-index and high
... light trap and a dark trap in the same vicinity may be of interest for the trapping of cold atoms.19 For application purposes, it is of interest to know the absolute limits of particle size and refractive index that this technique affords. While there is no theoretical limit on the upper size limit ...
... light trap and a dark trap in the same vicinity may be of interest for the trapping of cold atoms.19 For application purposes, it is of interest to know the absolute limits of particle size and refractive index that this technique affords. While there is no theoretical limit on the upper size limit ...
The Absolute Sensitivity of Lens and Compound Eyes
... om matidia are not fused together as e. g. in the bees eye, but that they are isolated from each other. This has as a consequence that the optical axes of the receptors within each ommatidium diverge, and also that the optical axes of 7 receptors within 7 different ommatidia (in special eye regions: ...
... om matidia are not fused together as e. g. in the bees eye, but that they are isolated from each other. This has as a consequence that the optical axes of the receptors within each ommatidium diverge, and also that the optical axes of 7 receptors within 7 different ommatidia (in special eye regions: ...
Non-linear Optical Microscopy and Spectroscopy for
... applied to improve contrast when performing two-photon fluorescence microscopy for diagnostics of non-melanoma skin cancer. In this thesis, it is demonstrated that detection of two-photon excited fluorescence of endogenous PpIX in human skin is not possible. Instead, it is preferable to use a slightly ...
... applied to improve contrast when performing two-photon fluorescence microscopy for diagnostics of non-melanoma skin cancer. In this thesis, it is demonstrated that detection of two-photon excited fluorescence of endogenous PpIX in human skin is not possible. Instead, it is preferable to use a slightly ...
