Prospects for Precise Measurements with Echo Atom
... the harmonic with period λ/2) as shown in Figure 1b. This back-scattered “echo signal” carries both the phase and contrast information about the atomic interference between certain classes of trajectories—namely those whose momenta differ by h̄q at t = 2T. A common feature of the echo AI experiments ...
... the harmonic with period λ/2) as shown in Figure 1b. This back-scattered “echo signal” carries both the phase and contrast information about the atomic interference between certain classes of trajectories—namely those whose momenta differ by h̄q at t = 2T. A common feature of the echo AI experiments ...
Integrated Optic/Nanofluidic Detection Device with Plasmonic Readout
... The detection of small signals from fluorescent tags, impedance measurements, mass, or other techniques is difficult. Specifically, when looking for such small signals background noise is significant. This noise usually comes from sources such as Raman and Rayleigh scattering from the medium (1) or ...
... The detection of small signals from fluorescent tags, impedance measurements, mass, or other techniques is difficult. Specifically, when looking for such small signals background noise is significant. This noise usually comes from sources such as Raman and Rayleigh scattering from the medium (1) or ...
PDF
... requires a high power pump laser which makes the light source expensive and bulky. In addition, the microstructure fiber requires a free space coupling to the interferometer, which limits the optical power at the sample and the stability of the system. Finally, in order to achieve broad bandwidth, h ...
... requires a high power pump laser which makes the light source expensive and bulky. In addition, the microstructure fiber requires a free space coupling to the interferometer, which limits the optical power at the sample and the stability of the system. Finally, in order to achieve broad bandwidth, h ...
Zemax, LLC Getting Started With OpticStudio 16
... software, the Zemax License Manager (ZLM). A dialog box may also ask for your permission to modify the firewall settings of your computer to allow remote users of your computer to run OpticStudio using Remote Desktop. If you want to authorize this, click "Yes", otherwise click "No". To change this s ...
... software, the Zemax License Manager (ZLM). A dialog box may also ask for your permission to modify the firewall settings of your computer to allow remote users of your computer to run OpticStudio using Remote Desktop. If you want to authorize this, click "Yes", otherwise click "No". To change this s ...
Noiseless, kilohertz-frame-rate, imaging detector based on micro
... of a standard size tube and window. The interior of a standard night vision type vacuum tube is only marginally larger than the Medipix2 device, making space constraints inside the vacuum tube very restrictive. Also the sensitivity of the photocathode to contamination means that everything that goes ...
... of a standard size tube and window. The interior of a standard night vision type vacuum tube is only marginally larger than the Medipix2 device, making space constraints inside the vacuum tube very restrictive. Also the sensitivity of the photocathode to contamination means that everything that goes ...
Pulse Delay Chromatic Dispersion Measurements in Single Mode
... effects, attenuation of the optical signal, polarization mode dispersion and chromatic dispersion can interfere with the high-speed data transmission. These effects are but a few detrimental factors that limit the optical fibre to perform at its peak. In this paper, chromatic dispersion is discussed ...
... effects, attenuation of the optical signal, polarization mode dispersion and chromatic dispersion can interfere with the high-speed data transmission. These effects are but a few detrimental factors that limit the optical fibre to perform at its peak. In this paper, chromatic dispersion is discussed ...
Guided-mode triggered switching between TE orders of a metal
... Littrow angle θ L = sin−1 (λ/(2Λ)) (λ is the wavelength in vacuum, Λ the grating period) is usually very broad and is limited by the higher reflected orders starting to propagate. It was shown recently [2] that the situation changes radically for the TM polarization if the -2nd or +1st order of the ...
... Littrow angle θ L = sin−1 (λ/(2Λ)) (λ is the wavelength in vacuum, Λ the grating period) is usually very broad and is limited by the higher reflected orders starting to propagate. It was shown recently [2] that the situation changes radically for the TM polarization if the -2nd or +1st order of the ...
Distance Sensing with Dynamic Speckles
... extremely rough surfaces where other sensors such as, for example, triangulation [1] do not reach the required performance. The proposed technique is based on the well-known speckle effect discovered in the 1960s. Since that time it has been known that moving objects illuminated with a laser produce ...
... extremely rough surfaces where other sensors such as, for example, triangulation [1] do not reach the required performance. The proposed technique is based on the well-known speckle effect discovered in the 1960s. Since that time it has been known that moving objects illuminated with a laser produce ...
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Lithium Niobate Microphotonic Modulators
... modulator. The modulator directly converts the RF signal to an optical carrier via the electro-optic effect. The resulting phase-modulated optical signal is converted to amplitude-modulation through the use of a standard Mach-Zehnder configuration. After conversion to the optical domain, the signal ...
... modulator. The modulator directly converts the RF signal to an optical carrier via the electro-optic effect. The resulting phase-modulated optical signal is converted to amplitude-modulation through the use of a standard Mach-Zehnder configuration. After conversion to the optical domain, the signal ...
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... two-dimensional materials by optical imaging. Nanotechnology 2012, 23, 495713. [S4] Benameur, M. M.; Radisavljevic, B.; Héron, J. S.; Sahoo, S.; Berger, H.; Kis, A. Visibility of dichalcogenide nanolayers. ...
... two-dimensional materials by optical imaging. Nanotechnology 2012, 23, 495713. [S4] Benameur, M. M.; Radisavljevic, B.; Héron, J. S.; Sahoo, S.; Berger, H.; Kis, A. Visibility of dichalcogenide nanolayers. ...
Sample Chapter
... region is the light guiding region known as the core. It is surrounded by a coaxial middle region known as the cladding. The outermost region is called the sheath. The refractive index of cladding is always lower than that of the core. The purpose of cladding is to make the light to be confined to t ...
... region is the light guiding region known as the core. It is surrounded by a coaxial middle region known as the cladding. The outermost region is called the sheath. The refractive index of cladding is always lower than that of the core. The purpose of cladding is to make the light to be confined to t ...
21.pdf
... heterostructures in less than 6 h using polymeric colloidal suspensions. Structural characterization shows good ordering of the two types of photonic crystals constituting the heterostructure. The reflection/transmission spectra measured from the 共111兲 plane of the heterostructure clearly demonstrat ...
... heterostructures in less than 6 h using polymeric colloidal suspensions. Structural characterization shows good ordering of the two types of photonic crystals constituting the heterostructure. The reflection/transmission spectra measured from the 共111兲 plane of the heterostructure clearly demonstrat ...
An Optical Mask for Atomic Interferometry Experiments
... Moscow’s Institute for Spectroscopy by Andreev et al (see [18] for reference). Over the early-to-mid80’s, Phillips and Metcalf perfected a device they called the Zeeman slower, which uses a spatiallyvarying magnetic field to keep a sample of atoms in resonance with a laser beam as it cools. They suc ...
... Moscow’s Institute for Spectroscopy by Andreev et al (see [18] for reference). Over the early-to-mid80’s, Phillips and Metcalf perfected a device they called the Zeeman slower, which uses a spatiallyvarying magnetic field to keep a sample of atoms in resonance with a laser beam as it cools. They suc ...
Passive Light and Viewpoint Sensitive Display of 3D Content
... still limited in an important aspect: they can only display a scene captured under a fixed-illumination condition, and they do not naturally react to illumination in the viewer’s environment. However, changing the environment lighting can vary appearance substantially by shifting highlights and shad ...
... still limited in an important aspect: they can only display a scene captured under a fixed-illumination condition, and they do not naturally react to illumination in the viewer’s environment. However, changing the environment lighting can vary appearance substantially by shifting highlights and shad ...
Optical Cavity and laser Modes
... in some lasers a pinhole is inserted into the laser cavity to limit the diameter of the beam. An example is the limiting aperture for achieving single mode operation of the laser Losses inside Optical Cavity - Include all the radiation missing from the output of the laser (emitted through the output ...
... in some lasers a pinhole is inserted into the laser cavity to limit the diameter of the beam. An example is the limiting aperture for achieving single mode operation of the laser Losses inside Optical Cavity - Include all the radiation missing from the output of the laser (emitted through the output ...
Clutter elimination for deep clinical optoacoustic imaging using
... centimetre or even less is typically achieved when using probes that operate in the region of 7.5 MHz [17,19,20]. Clutter can emerge from strong OA transients that are generated at the site of tissue irradiation close to the ultrasound probe, where optical absorbers such as melanin and microvasculat ...
... centimetre or even less is typically achieved when using probes that operate in the region of 7.5 MHz [17,19,20]. Clutter can emerge from strong OA transients that are generated at the site of tissue irradiation close to the ultrasound probe, where optical absorbers such as melanin and microvasculat ...
Microsphere optical device
... photon travel in the angular direction, the index 1 refers to modes of photon travel in the aZimuthal direction, and the index q refers to modes of photon travel in the radial direction of the microsphere. Residual nonsphericity removes the degeneracy in the mode of photon travel in the angular dire ...
... photon travel in the angular direction, the index 1 refers to modes of photon travel in the aZimuthal direction, and the index q refers to modes of photon travel in the radial direction of the microsphere. Residual nonsphericity removes the degeneracy in the mode of photon travel in the angular dire ...
Capacity of coherent free-space optical links using
... and phases of the two fields will result in a reduction of the downconverted power, i.e., fading. In the case of coherent modulation, phase fluctuations can severely degrade performance unless measures are taken to compensate for them at the receiver. Here, we assume that after homodyne or heterodyn ...
... and phases of the two fields will result in a reduction of the downconverted power, i.e., fading. In the case of coherent modulation, phase fluctuations can severely degrade performance unless measures are taken to compensate for them at the receiver. Here, we assume that after homodyne or heterodyn ...
Nonlinear interfaces: intrinsically nonparaxial regimes and effects
... figure 1. Solid lines represent combinations of and α which preserve γ constant. The –α plane has been divided into four regions by means of two perpendicular dashed lines, = 0 and α = 1, corresponding to the absence of discontinuity in the linear and nonlinear refractive indices, respectively. ...
... figure 1. Solid lines represent combinations of and α which preserve γ constant. The –α plane has been divided into four regions by means of two perpendicular dashed lines, = 0 and α = 1, corresponding to the absence of discontinuity in the linear and nonlinear refractive indices, respectively. ...