O 28: Plasmonics and Nanooptics IV: Light
... and transport energy over mesoscopic distances [1]. They can then be used to generate and process information coded as optical signal to realize nanometer-scale all-optical circuitry. The propagation properties of these SPPs are defined by the geometry and composition of nanostructures. Here, we int ...
... and transport energy over mesoscopic distances [1]. They can then be used to generate and process information coded as optical signal to realize nanometer-scale all-optical circuitry. The propagation properties of these SPPs are defined by the geometry and composition of nanostructures. Here, we int ...
United Nations
... light sources was not foreseen during the original design of the lamp/vehicle needs to be verified to guarantee the correct operation of both the lamp and the vehicle. For these reasons, in parallel to the introduction in UN Regulation No. 128 and in Light sources Resolution [R.E. 5] of the LED subs ...
... light sources was not foreseen during the original design of the lamp/vehicle needs to be verified to guarantee the correct operation of both the lamp and the vehicle. For these reasons, in parallel to the introduction in UN Regulation No. 128 and in Light sources Resolution [R.E. 5] of the LED subs ...
NewPresentationii22
... split off once with a RF Power splitter where the signal is diverted to a spectrum analyzer for analysis. • The signal is split off again with a RF Power splitter and one signal is goes through a phase shifter which can be thought of as a phase delay line that is several wavelengths long. • The phas ...
... split off once with a RF Power splitter where the signal is diverted to a spectrum analyzer for analysis. • The signal is split off again with a RF Power splitter and one signal is goes through a phase shifter which can be thought of as a phase delay line that is several wavelengths long. • The phas ...
Difficulties associated with working with UV and IR optics
... Reflective coatings are limited to wavelengths greater than 0.15 microns if they are to be broadband, though narrow bandwidth filters can be designed for lower wavelengths [1]. One of the difficulties associated with coating UV optics is that coatings are applied at high temperatures, so stress is i ...
... Reflective coatings are limited to wavelengths greater than 0.15 microns if they are to be broadband, though narrow bandwidth filters can be designed for lower wavelengths [1]. One of the difficulties associated with coating UV optics is that coatings are applied at high temperatures, so stress is i ...
Modern battlefield and new materials for eyes protection
... would produce a green flash followed by a red afterimage). When the retina is affected, there may be difficult to detect blue or green colors. The exposure to the IR laser beams as Q-switched Nd:YAG laser (1064 nm) is especially hazardous and may be initially undetected because the beam is invisible ...
... would produce a green flash followed by a red afterimage). When the retina is affected, there may be difficult to detect blue or green colors. The exposure to the IR laser beams as Q-switched Nd:YAG laser (1064 nm) is especially hazardous and may be initially undetected because the beam is invisible ...
Abstract, Introduction, Conclusions and References
... its angular response, or to find solutions that are not predicted by the scalar theory. A grating’s surface profile can either be multilevel or continuous. In the former case the structure typically consists of M = 2N discrete depth values, where N is the number of fabrication steps, while in the latt ...
... its angular response, or to find solutions that are not predicted by the scalar theory. A grating’s surface profile can either be multilevel or continuous. In the former case the structure typically consists of M = 2N discrete depth values, where N is the number of fabrication steps, while in the latt ...
Homework Set #2 Due: 1-25-12 Review problem / tutorial on gratings.
... Although somewhat less common, a substrate with spherical curvature is sometimes used so the grating can form images. The first grating that students usually encounter in class is an array of slits on a screen. This is a transmission grating and the modulated quantity is the transmission (either 100 ...
... Although somewhat less common, a substrate with spherical curvature is sometimes used so the grating can form images. The first grating that students usually encounter in class is an array of slits on a screen. This is a transmission grating and the modulated quantity is the transmission (either 100 ...
Optical Studies of Materials for Spectral Design Christina ˚ Akerlind
... and materia is not limited to this range. There are individual variations among humans, and even larger differences among species. Dogs have limited color vision, ...
... and materia is not limited to this range. There are individual variations among humans, and even larger differences among species. Dogs have limited color vision, ...
Effect of Macroscopic Structure in Iridescent Color
... laser (Spectra Physics Model 2016) of 488.0 or 514.5 nm. The laser beam was expanded into typically 10 mm in diameter and focused into the sample with a camera lens (Nikon lens series E f35). The beam waist was estimated at about 3 µm under the assumption of the Gaussian profile of the laser beam wi ...
... laser (Spectra Physics Model 2016) of 488.0 or 514.5 nm. The laser beam was expanded into typically 10 mm in diameter and focused into the sample with a camera lens (Nikon lens series E f35). The beam waist was estimated at about 3 µm under the assumption of the Gaussian profile of the laser beam wi ...
Heuristic Green`s function of the time dependent
... and pencil beam source, are used to validate the heuristic Green’s function. Except for the very early times, the proposed solution has an excellent accuracy (> 98 % for the isotropic case, and > 97 % for the anisotropic case) significantly better than the diffusion equation. The use of this solutio ...
... and pencil beam source, are used to validate the heuristic Green’s function. Except for the very early times, the proposed solution has an excellent accuracy (> 98 % for the isotropic case, and > 97 % for the anisotropic case) significantly better than the diffusion equation. The use of this solutio ...
Optical amplifiers
... An erbium doped fiber amplifier (EDFA) consists of a few meters of optical fiber doped with a few parts per million of the rare earth element erbium. The optical signal is injected into this fiber, along with the light from a special “pump” laser that is designed to excite the erbium ions. Let us th ...
... An erbium doped fiber amplifier (EDFA) consists of a few meters of optical fiber doped with a few parts per million of the rare earth element erbium. The optical signal is injected into this fiber, along with the light from a special “pump” laser that is designed to excite the erbium ions. Let us th ...
anal chem II / IR spectrometry
... Atoms or atomic groups in a molecules are in continuous motion with respect to one another. IR spectra originate from the difference modes of vibration and rotation of a molecule, whereas the UV-visible absorption bands are primarily due to electronic transition. In order to absorb IR radiation, a m ...
... Atoms or atomic groups in a molecules are in continuous motion with respect to one another. IR spectra originate from the difference modes of vibration and rotation of a molecule, whereas the UV-visible absorption bands are primarily due to electronic transition. In order to absorb IR radiation, a m ...
Geometrical and diffraction optics
... Side note: the HST mirror Optical problem: HST primary mirror suffers from spherical aberration. Reason: the null corrector used to measure the mirror shape had been incorrectly assembled (one lens was misplaced by 1.3 mm). Management problem: The mirror manufacturer had analyzed its surface with ot ...
... Side note: the HST mirror Optical problem: HST primary mirror suffers from spherical aberration. Reason: the null corrector used to measure the mirror shape had been incorrectly assembled (one lens was misplaced by 1.3 mm). Management problem: The mirror manufacturer had analyzed its surface with ot ...
Résumé
... the imaging system and therefore the resolution. Several ways to overcome these problems have been proposed; two main methods aiming at keeping a good optical resolution are actively developed. The first one uses pre-compensation of the wavefront before propagation, to improve the resolution. This t ...
... the imaging system and therefore the resolution. Several ways to overcome these problems have been proposed; two main methods aiming at keeping a good optical resolution are actively developed. The first one uses pre-compensation of the wavefront before propagation, to improve the resolution. This t ...
COMPUTER GRAPHICS OPTIQUE Optical Superposition of
... We use two projectors whose images overlap completely. We designate one projector as the focused projector and the other as the defocused projector. We then adjust the optical focus of the latter to correspond to the maximum circle of confusion for the application. At run-time we use a two pass rend ...
... We use two projectors whose images overlap completely. We designate one projector as the focused projector and the other as the defocused projector. We then adjust the optical focus of the latter to correspond to the maximum circle of confusion for the application. At run-time we use a two pass rend ...
Electrodynamics of Solids
... transition, there are collective modes associated with the broken symmetry state which – as it turns out – couple directly to electromagnetic fields. In addition, for these states the order parameter is complex, with the phase directly related to the current and density fluctuations of the collectiv ...
... transition, there are collective modes associated with the broken symmetry state which – as it turns out – couple directly to electromagnetic fields. In addition, for these states the order parameter is complex, with the phase directly related to the current and density fluctuations of the collectiv ...
4Pi Microscopy
... The MMM-4Pi microscope (Egner et al., 2002a) has been designed to increase the recording speed compared to a single-beam 4Pi microscope. It consists of the two subunits sketched in Figure 30.2. The head of the MMM-4Pi includes the beam-splitter and the objective lenses that are illuminated through b ...
... The MMM-4Pi microscope (Egner et al., 2002a) has been designed to increase the recording speed compared to a single-beam 4Pi microscope. It consists of the two subunits sketched in Figure 30.2. The head of the MMM-4Pi includes the beam-splitter and the objective lenses that are illuminated through b ...
A Brief History of the Microscope and its Significance
... Light sources for confocal microscopes can be divided into spatially coherent or spatially incoherent groups. LSCMs are spatially coherent. In contrast, many of the clinical confocal microscopes used in the clinic, for example, the scanning-slit confocal microscope used in the ophthalmology clinic u ...
... Light sources for confocal microscopes can be divided into spatially coherent or spatially incoherent groups. LSCMs are spatially coherent. In contrast, many of the clinical confocal microscopes used in the clinic, for example, the scanning-slit confocal microscope used in the ophthalmology clinic u ...
Persistent spectral hole burning in an organic material for temporal
... organic7,8 and inorganic9–12 persistent spectral holeburning (PSHB) materials, but the cross correlation of a readout temporal pattern with an engraved one was effected only in ion-doped crystals,11,12 until our preliminary report.13 Indeed, the achievement of broadbandwidth temporal cross correlati ...
... organic7,8 and inorganic9–12 persistent spectral holeburning (PSHB) materials, but the cross correlation of a readout temporal pattern with an engraved one was effected only in ion-doped crystals,11,12 until our preliminary report.13 Indeed, the achievement of broadbandwidth temporal cross correlati ...
Extended Depth Optical Coherence Tomography for Anterior
... Absorption spectrum in the visible and near infrared wavelength range (Adapted from Hamblin and Demidova, 2009). Axial resolution vs. bandwidth as a function of central wavelength of the light source. Spectral distribution of the light source SLD 371 HP centered at 836nm and with 54nm FWHM (A). Theo ...
... Absorption spectrum in the visible and near infrared wavelength range (Adapted from Hamblin and Demidova, 2009). Axial resolution vs. bandwidth as a function of central wavelength of the light source. Spectral distribution of the light source SLD 371 HP centered at 836nm and with 54nm FWHM (A). Theo ...
The structure of the energy bands and optical absorption in osmium
... spectral range 5.5-9 eV, which are not found experimentally. These peaks are formed by electronic transitions from the filled part of the d band to empty states of the d or mixed (dp ) symmetry, positioned 0.15 Ry above the Fermi level (2-9, 3,4+9,10, 1+7-10). The majority of these transitions are f ...
... spectral range 5.5-9 eV, which are not found experimentally. These peaks are formed by electronic transitions from the filled part of the d band to empty states of the d or mixed (dp ) symmetry, positioned 0.15 Ry above the Fermi level (2-9, 3,4+9,10, 1+7-10). The majority of these transitions are f ...
7.8 Polarized light - one more excursion into optics 7.8.1 The
... twisting the wire ϕ = D ϕ T and we find D ϕ from eigenfrequency of the disc: ν disc = ...
... twisting the wire ϕ = D ϕ T and we find D ϕ from eigenfrequency of the disc: ν disc = ...
System design based on EDW code using FSO-FTTH
... external modulators. In this occupation, we used two models one used RZ pulse generator, with and without erbium doped fiber amplifier (EDFA), and the second model by using the NRZ pulse generator also with and without erbium doped fiber amplifier (EDFA).The fiber Bragg grating (FBG) is used as a fi ...
... external modulators. In this occupation, we used two models one used RZ pulse generator, with and without erbium doped fiber amplifier (EDFA), and the second model by using the NRZ pulse generator also with and without erbium doped fiber amplifier (EDFA).The fiber Bragg grating (FBG) is used as a fi ...
Direct measurement of standing evanescent waves with a photon
... collection efficiency E and the distance offset Az as fitting parameters. For the other parameters we used the values given in Section 2 and kept them fixed for the fitting procedure. There are several points that we should note here: (1) For 0 < z < 325 nm the data show an excellent fit by Eq. (3) ...
... collection efficiency E and the distance offset Az as fitting parameters. For the other parameters we used the values given in Section 2 and kept them fixed for the fitting procedure. There are several points that we should note here: (1) For 0 < z < 325 nm the data show an excellent fit by Eq. (3) ...
Optical coherence tomography
Optical coherence tomography (OCT) is an established medical imaging technique that uses light to capture micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue). Optical coherence tomography is based on low-coherence interferometry, typically employing near-infrared light. The use of relatively long wavelength light allows it to penetrate into the scattering medium. Confocal microscopy, another optical technique, typically penetrates less deeply into the sample but with higher resolution.Depending on the properties of the light source (superluminescent diodes, ultrashort pulsed lasers, and supercontinuum lasers have been employed), optical coherence tomography has achieved sub- micrometer resolution (with very wide-spectrum sources emitting over a ~100 nm wavelength range).Optical coherence tomography is one of a class of optical tomographic techniques. A relatively recent implementation of optical coherence tomography, frequency-domain optical coherence tomography, provides advantages in signal-to-noise ratio, permitting faster signal acquisition. Commercially available optical coherence tomography systems are employed in diverse applications, including art conservation and diagnostic medicine, notably in ophthalmology and optometry where it can be used to obtain detailed images from within the retina. Recently it has also begun to be used in interventional cardiology to help diagnose coronary artery disease. It has also shown promise in dermatology to improve the diagnostic process.