Trapping of Rubidium Atoms using Optical Tweezers
... components of a quantum network. A quantum network combines matter based stationary quantum objects as nodes with quantum connections, like photons. These challenges can be addressed by the use of isolated quantum systems, such as trapped ions in quantum computing and entanglement experiments [13,14 ...
... components of a quantum network. A quantum network combines matter based stationary quantum objects as nodes with quantum connections, like photons. These challenges can be addressed by the use of isolated quantum systems, such as trapped ions in quantum computing and entanglement experiments [13,14 ...
Solid-state laser system for laser cooling of Sodium - ENS-phys
... SFG is not resonant, it is generated only in the regions where both pump beams overlap significantly so that approximating its spatial mode by a Gaussian beam with the same confocal parameter as the infrared ones is a reasonable assumption [22]. With Gaussian beams, the coefficient γ defined in Eq.( ...
... SFG is not resonant, it is generated only in the regions where both pump beams overlap significantly so that approximating its spatial mode by a Gaussian beam with the same confocal parameter as the infrared ones is a reasonable assumption [22]. With Gaussian beams, the coefficient γ defined in Eq.( ...
Little big photon - Research Laboratory of Electronics
... atom can only absorb one photon at a time. Two photons then interact with one another because the first photon modifies the atom’s state, and hence the atom’s response to the second photon. What, then, is the limit to the interaction of one photon with one atom? The basic situation is depicted in Fi ...
... atom can only absorb one photon at a time. Two photons then interact with one another because the first photon modifies the atom’s state, and hence the atom’s response to the second photon. What, then, is the limit to the interaction of one photon with one atom? The basic situation is depicted in Fi ...
K.C. Neuman and S.M. Block, "Optical Trapping"
... fluctuating dipoles in the dielectric particle, and it is the interaction of these dipoles with the inhomogeneous electric field at the focus that gives rise to the gradient trapping force. The gradient force is proportional to both the polarizability of the dielectric and the optical intensity grad ...
... fluctuating dipoles in the dielectric particle, and it is the interaction of these dipoles with the inhomogeneous electric field at the focus that gives rise to the gradient trapping force. The gradient force is proportional to both the polarizability of the dielectric and the optical intensity grad ...
Light, Mirrors, and Lenses
... to change the color of other objects, such as the walls of a room or an artist’s canvas, are called pigments. Mixing pigments together forms colors in a different way than mixing colored lights does. Like all materials that appear to be colored, pigments absorb some light waves and reflect others. T ...
... to change the color of other objects, such as the walls of a room or an artist’s canvas, are called pigments. Mixing pigments together forms colors in a different way than mixing colored lights does. Like all materials that appear to be colored, pigments absorb some light waves and reflect others. T ...
Bandgap-assisted surface-plasmon sensing Arnaud J. Benahmed* and Chih-Ming Ho
... bandgap permits the coupling of a wider range of incidence angles of excitation photons to surfaceplasmon polaritons than what is possible in the traditional Kretschmann configuration. Here, the numerical simulation illustrates that the sensitivity, detection limit, and reflectivity minimum of an am ...
... bandgap permits the coupling of a wider range of incidence angles of excitation photons to surfaceplasmon polaritons than what is possible in the traditional Kretschmann configuration. Here, the numerical simulation illustrates that the sensitivity, detection limit, and reflectivity minimum of an am ...
Lec03 - nptel
... fiber from the side does not propagate along the fiber. The only option thus available with us is to launch the light through the tip of the fiber. That is, in order to guide light along the fiber, the light must be incident from the tip of the optical fiber. The red ray of light in figure 3.2 expla ...
... fiber from the side does not propagate along the fiber. The only option thus available with us is to launch the light through the tip of the fiber. That is, in order to guide light along the fiber, the light must be incident from the tip of the optical fiber. The red ray of light in figure 3.2 expla ...
TiO2-graphene oxide nanocomposite as advanced photocatalytic
... Diffuse reflectance UV/VIS spectra for evaluation of photo-physical properties were recorded in the diffuse reflectance mode (R) and transformed to absorption spectra through the Kubelka-Munk function [14]. A Perkin Elmer Lambda 35 spectrometer equipped with a Labsphere RSAPE- 20 integration sphere ...
... Diffuse reflectance UV/VIS spectra for evaluation of photo-physical properties were recorded in the diffuse reflectance mode (R) and transformed to absorption spectra through the Kubelka-Munk function [14]. A Perkin Elmer Lambda 35 spectrometer equipped with a Labsphere RSAPE- 20 integration sphere ...
Simulation of Optical Microfiber Loop Resonators for Ambient Refractive Index Sensing
... obtained using a microfiber manipulated into a loop, where effective coupling occurs between the contact sections of the microfiber. The MLR with loaded Q-factor of 120000 has been produced [16], and the performance is close to that of integrated waveguide micro-ring resonators of which the largest ...
... obtained using a microfiber manipulated into a loop, where effective coupling occurs between the contact sections of the microfiber. The MLR with loaded Q-factor of 120000 has been produced [16], and the performance is close to that of integrated waveguide micro-ring resonators of which the largest ...
Universal diffraction of atoms and molecules from a quantum
... that universal behavior was also found for the –3rd-order diffraction efficiency curves of He, He2, and D2. In conclusion, we have observed emerging beam resonances for He, He2, and D2 quantum-reflected from an echelette diffraction grating at grazing incidence. Our observation indicates that He2, d ...
... that universal behavior was also found for the –3rd-order diffraction efficiency curves of He, He2, and D2. In conclusion, we have observed emerging beam resonances for He, He2, and D2 quantum-reflected from an echelette diffraction grating at grazing incidence. Our observation indicates that He2, d ...
PDF
... To analyze the discharge process, which is the excitation source in the laser oscillator, a discharge simulation based on the Boltzmann equation is used. The Boltzmann analysis is useful for examining the process by which electrons are energized by the electric field and are distributed for the exci ...
... To analyze the discharge process, which is the excitation source in the laser oscillator, a discharge simulation based on the Boltzmann equation is used. The Boltzmann analysis is useful for examining the process by which electrons are energized by the electric field and are distributed for the exci ...
Class 3b Laser Safety
... Safety guidelines that apply to lasers of all power classes 1. Never, under any circumstances, look into the beam of any laser! I don't care if you have safety glasses, or if it's only a 2mW keychain pointer. Don't do it! For one thing, don't get into a habit of looking into the beam with cheap poin ...
... Safety guidelines that apply to lasers of all power classes 1. Never, under any circumstances, look into the beam of any laser! I don't care if you have safety glasses, or if it's only a 2mW keychain pointer. Don't do it! For one thing, don't get into a habit of looking into the beam with cheap poin ...
Ultraviolet–visible spectroscopy
Ultraviolet–visible spectroscopy or ultraviolet-visible spectrophotometry (UV-Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet-visible spectral region. This means it uses light in the visible and adjacent (near-UV and near-infrared [NIR]) ranges. The absorption or reflectance in the visible range directly affects the perceived color of the chemicals involved. In this region of the electromagnetic spectrum, molecules undergo electronic transitions. This technique is complementary to fluorescence spectroscopy, in that fluorescence deals with transitions from the excited state to the ground state, while absorption measures transitions from the ground state to the excited state.