Viewing Microstructures of Materials using the Optical Microscope
... One should keep in mind that there are two artifacts caused by the interaction of light with glass lenses: spherical and chromatic aberrations. The spherical aberration is related to the distortion of the image due to the spherical nature of the lenses, and the chromatic aberration arises from the ...
... One should keep in mind that there are two artifacts caused by the interaction of light with glass lenses: spherical and chromatic aberrations. The spherical aberration is related to the distortion of the image due to the spherical nature of the lenses, and the chromatic aberration arises from the ...
A Comprehensive Study of Data Mining and Application
... creep refers to the use of data for purposes other than that for which the data was originally collected. This can occur regardless of whether the data was provided voluntarily by the individual or was collected through other means. d) Privacy As additional information sharing and data mining initia ...
... creep refers to the use of data for purposes other than that for which the data was originally collected. This can occur regardless of whether the data was provided voluntarily by the individual or was collected through other means. d) Privacy As additional information sharing and data mining initia ...
Optical spectroscopy and electronic structure of the face-centered icosahedral quasicrystals Zn- R
... high structural quality of the quasicrystals. The mass density of the QCs was measured by the Micrometrics AccuPyc 1330 setup. The valence electron concentrations, determined from the recorded values, are presented in Table I. The optical surfaces of single-grain QC samples were prepared by a ca ...
... high structural quality of the quasicrystals. The mass density of the QCs was measured by the Micrometrics AccuPyc 1330 setup. The valence electron concentrations, determined from the recorded values, are presented in Table I. The optical surfaces of single-grain QC samples were prepared by a ca ...
Design Considerations and Performance Comparison of High-Order Modulation Formats using OFDM
... The experimental system setup is the same as Fig. 2. The real valued OFDM signal is generated offline in MATLAB with the following parameters; number of subcarriers N=256, FFT size is 2048 and CP=1/8 of the useful OFDM symbol duration. The OFDM signal, which occupies the frequency range from 2.5 to ...
... The experimental system setup is the same as Fig. 2. The real valued OFDM signal is generated offline in MATLAB with the following parameters; number of subcarriers N=256, FFT size is 2048 and CP=1/8 of the useful OFDM symbol duration. The OFDM signal, which occupies the frequency range from 2.5 to ...
Long, Formal Report
... show up as attenuation on the signal levels, which are measured in decibels to one milliwatt (dBm). As for the regenerators, they will take the incoming signals, break them down to their electrical properties, clean up the 1’s and 0’s, and convert them back to an optical signal re-transmitting them ...
... show up as attenuation on the signal levels, which are measured in decibels to one milliwatt (dBm). As for the regenerators, they will take the incoming signals, break them down to their electrical properties, clean up the 1’s and 0’s, and convert them back to an optical signal re-transmitting them ...
Relation between nonlinear refractive index and
... communication networks1 in which ultrafast switching, signal regeneration, and high-speed demultiplexing would be performed all-optically through the use of thirdorder optical nonlinearities. Thus, in recent years, thirdorder nonlinearities have been studied experimentally in a large variety of arti ...
... communication networks1 in which ultrafast switching, signal regeneration, and high-speed demultiplexing would be performed all-optically through the use of thirdorder optical nonlinearities. Thus, in recent years, thirdorder nonlinearities have been studied experimentally in a large variety of arti ...
Optical forces through guided light deflections
... or light scattering [20–23]. In this work we bring focus to the object shaping aspects of optimizing the mechanical effects of optical fields. We demonstrated in a recent work the optical manipulation of 2PP-fabricated free-floating waveguides [12]. Here we again consider three-dimensional waveguide ...
... or light scattering [20–23]. In this work we bring focus to the object shaping aspects of optimizing the mechanical effects of optical fields. We demonstrated in a recent work the optical manipulation of 2PP-fabricated free-floating waveguides [12]. Here we again consider three-dimensional waveguide ...
OPTI 511R, Spring 2015 Problem Set 10 Prof. E. M. Wright Due
... Doppler cooling utilizes the scattering force to remove kinetic energy from a gas of atoms via momentum removal from the atoms, thus cooling atoms. Consider an atom moving in the −kˆ direction, opposite to the propagation direction of a laser beam. The scattering force will push the atom in the +kˆ ...
... Doppler cooling utilizes the scattering force to remove kinetic energy from a gas of atoms via momentum removal from the atoms, thus cooling atoms. Consider an atom moving in the −kˆ direction, opposite to the propagation direction of a laser beam. The scattering force will push the atom in the +kˆ ...
Universidad de Cantabria ON LIGHT SCATTERING BY NANOPARTICLES WITH CONVENTIONAL AND NON-CONVENTIONAL
... which we reproduce in Figure 1.6. Negative refractive index metamaterials appear in the base of the tree, because they have been demonstrated experimentally and accepted. Other interesting types of metamaterials, designed for specific applications, are also included in this figure. As an example, we ...
... which we reproduce in Figure 1.6. Negative refractive index metamaterials appear in the base of the tree, because they have been demonstrated experimentally and accepted. Other interesting types of metamaterials, designed for specific applications, are also included in this figure. As an example, we ...
Practical uses of femtosecond laser micro
... Each setup was identical, only differing in the laser source: the laser beam was expanded using a 4 : 1 telescope and filtered by an iris. It was then focused to a 100 µm diameter spot onto the target using a fused silica plano-convex lens with a 20 cm focal length. After initial positioning, the fo ...
... Each setup was identical, only differing in the laser source: the laser beam was expanded using a 4 : 1 telescope and filtered by an iris. It was then focused to a 100 µm diameter spot onto the target using a fused silica plano-convex lens with a 20 cm focal length. After initial positioning, the fo ...
Guided-Wave Optical Biosensors
... As bio receptor, molecular species (antibody, enzyme, protein or nucleic acid) or a biological system (cells, tissue) are commonly employed to recognize biochemical substances. Transduction mechanisms are usually electrochemical, mass-based or optical. Electrochemical detection is commonly based on ...
... As bio receptor, molecular species (antibody, enzyme, protein or nucleic acid) or a biological system (cells, tissue) are commonly employed to recognize biochemical substances. Transduction mechanisms are usually electrochemical, mass-based or optical. Electrochemical detection is commonly based on ...
Journal of Modern Optics Slow and fast light: fundamentals and
... For the past decade or more, the optical physics community has been fascinated by the related phenomena of slow and fast light [1–3]. These names are taken to refer to situations in which the group velocity (roughly, the velocity at which light pulses propagate through a material system) is very muc ...
... For the past decade or more, the optical physics community has been fascinated by the related phenomena of slow and fast light [1–3]. These names are taken to refer to situations in which the group velocity (roughly, the velocity at which light pulses propagate through a material system) is very muc ...
Pulsed-source and swept-source spectral-domain optical coherence tomography with reduced motion artifacts
... receives its corresponding spectral component only for a short time interval. As with pulsed broad bandwidth illumination, the signal loss by axial motion can be described with Eq. (1) where τ corresponds to the FWHM of the “spectrum pulse” seen by each CCD pixel. For a narrowband, linearly-swept so ...
... receives its corresponding spectral component only for a short time interval. As with pulsed broad bandwidth illumination, the signal loss by axial motion can be described with Eq. (1) where τ corresponds to the FWHM of the “spectrum pulse” seen by each CCD pixel. For a narrowband, linearly-swept so ...
CHAPTER 3
... transitions from one ion to another. A major source of attenuation is from transition of metal impurity ions such as iron, chromium, cobalt, and copper 2- Intrinsic absorption- Intrinsic absorption results from electronic absorption bands in UV region and from atomic vibration bands in the near infr ...
... transitions from one ion to another. A major source of attenuation is from transition of metal impurity ions such as iron, chromium, cobalt, and copper 2- Intrinsic absorption- Intrinsic absorption results from electronic absorption bands in UV region and from atomic vibration bands in the near infr ...
10 fs ultrafast all-optical switching in polystyrene nonlinear photonic
... around 800 nm, and its duration is about 8 fs. The pulse laser is divided into two beams with the intensity ratio of about 1:10. The stronger one 共reflection from the beam splitter兲 is regarded as the pump beam and the weaker one 共transmission through the splitter兲 is the probe beam. An optical dela ...
... around 800 nm, and its duration is about 8 fs. The pulse laser is divided into two beams with the intensity ratio of about 1:10. The stronger one 共reflection from the beam splitter兲 is regarded as the pump beam and the weaker one 共transmission through the splitter兲 is the probe beam. An optical dela ...
A new approach for retrieving the UV–vis optical properties of
... For the 390 to 420 nm cavity (BBCES-407), we use a lightemitting diode (LED) centered at 407.1 nm with a measured 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 ou ...
... For the 390 to 420 nm cavity (BBCES-407), we use a lightemitting diode (LED) centered at 407.1 nm with a measured 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 ou ...
The European Concerted Research Action COST P14
... We have used point projection K-shell absorption spectroscopy to infer the ionization and recombination dynamics of transient aluminium plasmas. Two femtosecond beams of the 100-TW laser at the LULI facility were used to produce an aluminum plasma on a thin aluminium foil (83- or 50-nm), and a picos ...
... We have used point projection K-shell absorption spectroscopy to infer the ionization and recombination dynamics of transient aluminium plasmas. Two femtosecond beams of the 100-TW laser at the LULI facility were used to produce an aluminum plasma on a thin aluminium foil (83- or 50-nm), and a picos ...
Low-coherence heterodyne photon correlation spectroscopy
... across the sample cell (L, where is the calculated photon scattering mean-free-path length) is the relevant experimental parameter, rather than the volume fraction. For example, a 0.01% aqueous suspension of 1 m polystyrene spheres yields the same number of scattering lengths across a 1 cm cell ...
... across the sample cell (L, where is the calculated photon scattering mean-free-path length) is the relevant experimental parameter, rather than the volume fraction. For example, a 0.01% aqueous suspension of 1 m polystyrene spheres yields the same number of scattering lengths across a 1 cm cell ...
Laser Linewidth Characterization
... The two fields are scaled such that their magnitudes squared are optical powers (i.e. P(t) = |E(t)|2). The optical field frequencies and phases are designated by ν and φ(t). If either field were separately detected on a photodetector, the resulting photocurrent would follow only the power variations ...
... The two fields are scaled such that their magnitudes squared are optical powers (i.e. P(t) = |E(t)|2). The optical field frequencies and phases are designated by ν and φ(t). If either field were separately detected on a photodetector, the resulting photocurrent would follow only the power variations ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
... for small scale systems, they are not able to capitalize on their better performance scalability yet. As the system size scales up, 2D meshes however suffer from poor performance scalability. Hence, the need for alternative topologies becomes more stringent. k-ary n-trees can provide that performanc ...
... for small scale systems, they are not able to capitalize on their better performance scalability yet. As the system size scales up, 2D meshes however suffer from poor performance scalability. Hence, the need for alternative topologies becomes more stringent. k-ary n-trees can provide that performanc ...
Laser and its applications
... Fig. 7 Production of fiber preform by modified chemical vapor deposition. In the first stage, (a), the reactants are introduced into one end of a silica tube and the core material deposited on the inside of the tube in the reaction zone where the n is maintained at about 1600°C. Several traverses h ...
... Fig. 7 Production of fiber preform by modified chemical vapor deposition. In the first stage, (a), the reactants are introduced into one end of a silica tube and the core material deposited on the inside of the tube in the reaction zone where the n is maintained at about 1600°C. Several traverses h ...
3D optical data storage
3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD).This innovation has the potential to provide petabyte-level mass storage on DVD-sized discs (120mm). Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.No commercial product based on 3D optical data storage has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available ""soon"".