Graphene Plasmonic Metasurfaces to Steer Infrared Light www.nature.com/scientificreports Zubin Li
... by introducing in-plane phase gradient dϕ/dx at the interface between two media. Anomalous reflection and refraction phenomena have been reported in this regime, which are in sharp contrast to the well-known refraction and reflection law8,9. For the latter case, the relationship between the reflecti ...
... by introducing in-plane phase gradient dϕ/dx at the interface between two media. Anomalous reflection and refraction phenomena have been reported in this regime, which are in sharp contrast to the well-known refraction and reflection law8,9. For the latter case, the relationship between the reflecti ...
reflection properties of a gaussian laser beam from multilayer
... sound vibrations in a distant object. The object is typically inside a room where a conversation is taking place, and can be anything that can vibrate (for example, picture or window) in response to the sound waves of the conversation. The object preferably has a smooth surface. The laser beam is di ...
... sound vibrations in a distant object. The object is typically inside a room where a conversation is taking place, and can be anything that can vibrate (for example, picture or window) in response to the sound waves of the conversation. The object preferably has a smooth surface. The laser beam is di ...
Nonlinear Beam Shaping with Plasmonic Metasurfaces
... setup that was described previously,32 and the measured Fourier plane of the SH beam is shown in Figure 2e for pump wavelength 1320 nm. It can be seen that the emitted SH pattern agrees well with the simulation (see also Figure 2f). The minor discrepancy originates from subtle misalignment of the op ...
... setup that was described previously,32 and the measured Fourier plane of the SH beam is shown in Figure 2e for pump wavelength 1320 nm. It can be seen that the emitted SH pattern agrees well with the simulation (see also Figure 2f). The minor discrepancy originates from subtle misalignment of the op ...
Polarization-insensitive high-dispersion total internal reflection
... diffracted orders, but no transmitted diffracted orders can exist. Such a grating is significantly different from previous metal-free diffraction gratings, which either utilize a transmission grating with dielectric stacks to provide the reflection4,5 or rely on the TIR condition being met at every ...
... diffracted orders, but no transmitted diffracted orders can exist. Such a grating is significantly different from previous metal-free diffraction gratings, which either utilize a transmission grating with dielectric stacks to provide the reflection4,5 or rely on the TIR condition being met at every ...
Properties of a 4Pi confocal fluorescence microscope
... spherical wave front and the presence of aplanatic illumination force additional elevations along the optical axis that reach peak values of 0.58. For calculation of the resolution of the type-A 4Pi confocal fluorescence microscope (4Pi illumination and normal detection), the illumination point-spre ...
... spherical wave front and the presence of aplanatic illumination force additional elevations along the optical axis that reach peak values of 0.58. For calculation of the resolution of the type-A 4Pi confocal fluorescence microscope (4Pi illumination and normal detection), the illumination point-spre ...
Document
... The bound b 1 therefore provides a condition of stability (boundedness) of the ray trajectory If, instead, |b| > 1, is then imaginary and the solution is a hyperbolic function (cosh or sinh), which increases without bound. A harmonic solution ensures that y, is bounded for all m, with a maximum ...
... The bound b 1 therefore provides a condition of stability (boundedness) of the ray trajectory If, instead, |b| > 1, is then imaginary and the solution is a hyperbolic function (cosh or sinh), which increases without bound. A harmonic solution ensures that y, is bounded for all m, with a maximum ...
RAY OPTICS NOTES - RIT Center for Imaging Science
... than the definition put forth by humanocentrics (e.g., color scientists), but is much more reasonable in our field, where we want to take advantage of all measureable radiation to learn information about objects that emit, reflect, refract, or otherwise modify radiation. The definition in imaging is ...
... than the definition put forth by humanocentrics (e.g., color scientists), but is much more reasonable in our field, where we want to take advantage of all measureable radiation to learn information about objects that emit, reflect, refract, or otherwise modify radiation. The definition in imaging is ...
Theoretical studies of light propagation in photonic and plasmonic devices Link¨
... of light, but also in the capacity of transmitted data. By now, modern optical networks can provide such a bandwidth, that even the fastest state-of-the-art processors are unable to handle, and this trend seems to remain in nearest future. Furthermore, photons are not so strongly interacting as elec ...
... of light, but also in the capacity of transmitted data. By now, modern optical networks can provide such a bandwidth, that even the fastest state-of-the-art processors are unable to handle, and this trend seems to remain in nearest future. Furthermore, photons are not so strongly interacting as elec ...
SECOND HARMONIC GENERATION OF CHIRAL-MODIFIED SILVER NANOPARTICLES
... deposited through Vacuum Thermal Evaporation, controlled under different deposition thicknesses. UV-Vis/IR spectra and AFM are used to characterize Ag NPs under different conditions. Transmitted SHG measurements dependent on incidence are recorded with standard lock-in techniques. Deposition thickne ...
... deposited through Vacuum Thermal Evaporation, controlled under different deposition thicknesses. UV-Vis/IR spectra and AFM are used to characterize Ag NPs under different conditions. Transmitted SHG measurements dependent on incidence are recorded with standard lock-in techniques. Deposition thickne ...
Full text - Simon Fraser University
... and wax substrates. Raman studies of the ultrathin layers of MoS2 were carried out to characterize the thickness. During Raman measurement, an anomaly occurs: the strongest Raman intensity appears at a finite thickness of the MoS2 , a phenomenon also seen in graphite. A previous work [Y. Y. Wang et a ...
... and wax substrates. Raman studies of the ultrathin layers of MoS2 were carried out to characterize the thickness. During Raman measurement, an anomaly occurs: the strongest Raman intensity appears at a finite thickness of the MoS2 , a phenomenon also seen in graphite. A previous work [Y. Y. Wang et a ...
Optical Fiber Sensors Guide
... light beams [11]. In the phase mask technique, apodisation can also be achieved by varying the exposure time along the length of a grating, either by a double exposure [12] or by scanning a small writing beam [11]. In all these apodization techniques, the variation in coupling coefficient along the ...
... light beams [11]. In the phase mask technique, apodisation can also be achieved by varying the exposure time along the length of a grating, either by a double exposure [12] or by scanning a small writing beam [11]. In all these apodization techniques, the variation in coupling coefficient along the ...
Measurement and correction of aberrations in light and electron
... Abstract (English) Imperfections in image formation, called aberrations, often preclude microscopes from reaching diffraction-limited resolution. Aberrations can be caused either by the microscope itself or by the sample and can be compensated for by using an active element integrated into the bea ...
... Abstract (English) Imperfections in image formation, called aberrations, often preclude microscopes from reaching diffraction-limited resolution. Aberrations can be caused either by the microscope itself or by the sample and can be compensated for by using an active element integrated into the bea ...
pdf file
... OR process, however, the red-shifted pump photon can be reused for the generation of a second THz photon, and the cascaded OR processes can give conversion efficiency much higher than the Manley-Rowe limit[19]. For DFG of two narrow band light fields, possibility of achieving high conversion efficie ...
... OR process, however, the red-shifted pump photon can be reused for the generation of a second THz photon, and the cascaded OR processes can give conversion efficiency much higher than the Manley-Rowe limit[19]. For DFG of two narrow band light fields, possibility of achieving high conversion efficie ...
Electronic Thesis
... last name in the same way many telemarketers do. For some reason, telemarketers loved my telephone number, and I had grown accustomed to giving a fairly standard reply: “Yes, she is, but I don’t believe she’s interested in what you’re offering.” Thankfully, that evening I refrained from a terse resp ...
... last name in the same way many telemarketers do. For some reason, telemarketers loved my telephone number, and I had grown accustomed to giving a fairly standard reply: “Yes, she is, but I don’t believe she’s interested in what you’re offering.” Thankfully, that evening I refrained from a terse resp ...
nonlinear optics in novel periodic media - Deep Blue
... composites having a manmade, three-dimensional, periodic cellular architecture designed to produce an optimized combination, not available in nature, of two or more responses to specific excitation [4]. In order for its structure to affect electromagnetic waves, a Metamaterial must have structural f ...
... composites having a manmade, three-dimensional, periodic cellular architecture designed to produce an optimized combination, not available in nature, of two or more responses to specific excitation [4]. In order for its structure to affect electromagnetic waves, a Metamaterial must have structural f ...
“Superluminal” Pulse Propagation Dynamics by George M. Gehring
... With the recent rediscovery of slow- and fast-light effects, there has been much interest in pulse propagation phenomena that lead to apparently superluminal pulse transmission. This raises immediate questions about causality and special relativity violations and elicits curiosity about the physical ...
... With the recent rediscovery of slow- and fast-light effects, there has been much interest in pulse propagation phenomena that lead to apparently superluminal pulse transmission. This raises immediate questions about causality and special relativity violations and elicits curiosity about the physical ...
Fabrication of Multi-wavelength Optical Reflector using On
... not produce higher diffraction orders. For Sufficiently small period, only the Zero order diffraction remains because higher order diffraction are suppressed. When the grating period is lesser than the wavelength, the grating behaves as a uniform layer with effective refractive index among the mater ...
... not produce higher diffraction orders. For Sufficiently small period, only the Zero order diffraction remains because higher order diffraction are suppressed. When the grating period is lesser than the wavelength, the grating behaves as a uniform layer with effective refractive index among the mater ...
Patterned dielectric membranes designed for optical sensing
... Going back a 150 years in time, the science of medicine was at a premature state. Little was known of how the body functioned, what caused disease and how diseases could be treated. There were men that called themselves doctors, and a number of memorable medicines and treatments, but in many cases b ...
... Going back a 150 years in time, the science of medicine was at a premature state. Little was known of how the body functioned, what caused disease and how diseases could be treated. There were men that called themselves doctors, and a number of memorable medicines and treatments, but in many cases b ...
Birefringence
Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. These optically anisotropic materials are said to be birefringent (or birefractive). The birefringence is often quantified as the maximum difference between refractive indices exhibited by the material. Crystals with asymmetric crystal structures are often birefringent, as are plastics under mechanical stress.Birefringence is responsible for the phenomenon of double refraction whereby a ray of light, when incident upon a birefringent material, is split by polarization into two rays taking slightly different paths. This effect was first described by the Danish scientist Rasmus Bartholin in 1669, who observed it in calcite, a crystal having one of the strongest birefringences. However it was not until the 19th century that Augustin-Jean Fresnel described the phenomenon in terms of polarization, understanding light as a wave with field components in transverse polarizations (perpendicular to the direction of the wave vector).