Aberration-Free Ultrathin Flat Lenses and Axicons at Telecom
... Figure 2. (a) FDTD simulations are used to obtain the phase shifts and scattering amplitudes in cross-polarization for the eight elements used in our metasurfaces (see Supporting Information for details). The parameters characterizing the elements from 1 to 4 are d = 180, 140, 130, and 85 nm , and θ ...
... Figure 2. (a) FDTD simulations are used to obtain the phase shifts and scattering amplitudes in cross-polarization for the eight elements used in our metasurfaces (see Supporting Information for details). The parameters characterizing the elements from 1 to 4 are d = 180, 140, 130, and 85 nm , and θ ...
polarization 3
... they give rise to a plane polarized light without any rotation of the plane of polarization. 3. In an optically active crystal, like quartz , two circular components travel with different speeds so that relative phase difference is developed between them. ...
... they give rise to a plane polarized light without any rotation of the plane of polarization. 3. In an optically active crystal, like quartz , two circular components travel with different speeds so that relative phase difference is developed between them. ...
Electromagnetically induced transparency
... (1) Suffers from laborious labeling processes, that may also interfere with the function of a biomolecule; (2) Quantitative analysis is challenging due to the fluorescence signal bias, as the fluorophores number on each molecule cannot be precisely controlled 2. Label-free detection Molecules are no ...
... (1) Suffers from laborious labeling processes, that may also interfere with the function of a biomolecule; (2) Quantitative analysis is challenging due to the fluorescence signal bias, as the fluorophores number on each molecule cannot be precisely controlled 2. Label-free detection Molecules are no ...
Optical mode structure of the air waveguide
... are propagation constants in the core and cladding. Since the lowest order leaky mode is nearly Gaussian [Fig. 2(d)] we used a variational equation with Gaussian trial function to derive Eq. (2b). At early times up to ∼500 μs, propagation loss decreases as there is less transverse leakage through a ...
... are propagation constants in the core and cladding. Since the lowest order leaky mode is nearly Gaussian [Fig. 2(d)] we used a variational equation with Gaussian trial function to derive Eq. (2b). At early times up to ∼500 μs, propagation loss decreases as there is less transverse leakage through a ...
Highly doped InP as a low loss plasmonic material for
... Surface plasmon polaritons (SPPs) are surface waves confined to the interface between a dielectric and conductive materials as a result of coupling of an external electromagnetic field with the collective oscillation of free conduction electrons. Mathematical descriptions of these phenomena date bac ...
... Surface plasmon polaritons (SPPs) are surface waves confined to the interface between a dielectric and conductive materials as a result of coupling of an external electromagnetic field with the collective oscillation of free conduction electrons. Mathematical descriptions of these phenomena date bac ...
39 Raman Scattering Spectroscopy Raman - Rose
... n–n´ tends to be fairly small, and may be lost in the light scattering from the sample unless a very good monochromator is used. In most cases, laser light sources are used, because these can generate intense monochromatic light. A second problem is that the Raman signal tends to be fairly weak (1 p ...
... n–n´ tends to be fairly small, and may be lost in the light scattering from the sample unless a very good monochromator is used. In most cases, laser light sources are used, because these can generate intense monochromatic light. A second problem is that the Raman signal tends to be fairly weak (1 p ...
tuning of material optical properties by modification of interlayer
... method implementing Maxwell equations for electromagnetic waves propagation thru 11 layers of Silver and Nickel thin layers (20nm and 30nm respectively) separated by one Ni layer with variable thickness. Study showed that by changing only one middle layer dimensions it is possible to tune optical pr ...
... method implementing Maxwell equations for electromagnetic waves propagation thru 11 layers of Silver and Nickel thin layers (20nm and 30nm respectively) separated by one Ni layer with variable thickness. Study showed that by changing only one middle layer dimensions it is possible to tune optical pr ...
Numerical modelling of LCD electro
... resolution TFT-LCDs or in devices using the in-plane-switching (IPS) effect. The LCD is composed of plane parallel layers like glass substrates, LC layer, polarises etc. As long as the lateral extensions are much larger compared to the thickness of the individual layers and if sufficient homogeneity ...
... resolution TFT-LCDs or in devices using the in-plane-switching (IPS) effect. The LCD is composed of plane parallel layers like glass substrates, LC layer, polarises etc. As long as the lateral extensions are much larger compared to the thickness of the individual layers and if sufficient homogeneity ...
Get PDF - OSA Publishing
... structure emits another wavelength alone from the bottom side. This could be certainly achieved by mirroring the single-sided absorber structures; however, the mirroring structure consists of at least five layers, resulting in an increased thickness and fabrication complexity. Alternative ways of ob ...
... structure emits another wavelength alone from the bottom side. This could be certainly achieved by mirroring the single-sided absorber structures; however, the mirroring structure consists of at least five layers, resulting in an increased thickness and fabrication complexity. Alternative ways of ob ...
Effects of Quantum well Size Alteration on Excitonic Population
... ing, the alloy percentage and the materials of QW could be employed to design a practical optical buffer [7]. After fabrication, current injection and pump intensity are the choices for tuning of OB. Pump intensity change the Rabi frequency of QW material and the population of carriers; so, these pa ...
... ing, the alloy percentage and the materials of QW could be employed to design a practical optical buffer [7]. After fabrication, current injection and pump intensity are the choices for tuning of OB. Pump intensity change the Rabi frequency of QW material and the population of carriers; so, these pa ...
Light Microscopy [10 credits]
... Confocal microscopy: Confocality & confocal microscopy methods Confocal microscopy – Components 1 Confocal microscopy – Components 2 Image acquisition parameters Samples for light microscopy: Sample preparation for light microscopy Sample labelling Live specimen imaging Optimisation of image acquisi ...
... Confocal microscopy: Confocality & confocal microscopy methods Confocal microscopy – Components 1 Confocal microscopy – Components 2 Image acquisition parameters Samples for light microscopy: Sample preparation for light microscopy Sample labelling Live specimen imaging Optimisation of image acquisi ...
Bessel Beam Theory - u.arizona.edu
... Diffraction is a feature of the wave nature of light. It can occur anytime a beam of light passes through an aperture that is large with respect to its wavelength1. According to the Huygens-Fresnel Principle2, every point of the wavefront that is unobstructed by the hindrance serves as a source of s ...
... Diffraction is a feature of the wave nature of light. It can occur anytime a beam of light passes through an aperture that is large with respect to its wavelength1. According to the Huygens-Fresnel Principle2, every point of the wavefront that is unobstructed by the hindrance serves as a source of s ...
A polynomial approach for reflection, transmission, and ellipsometric
... that these parameters can be written in a very simple and compact form using the so-called elementary symmetric functions that are extensively used in the mathematical theory of polynomials. This approach is applied to quarter-wave Bragg reflectors. The numerical results reveal an exact match with t ...
... that these parameters can be written in a very simple and compact form using the so-called elementary symmetric functions that are extensively used in the mathematical theory of polynomials. This approach is applied to quarter-wave Bragg reflectors. The numerical results reveal an exact match with t ...
Chapter 2
... ¾ RayRay-tracing approach provides a good approximation to light acceptance acceptance and guiding properties of optical fiber when the ratio of fiber radius to the the wavelength is large, which is known as smallsmall-wavelength limit. ¾ RayRay-tracing approach could give a more direct physical int ...
... ¾ RayRay-tracing approach provides a good approximation to light acceptance acceptance and guiding properties of optical fiber when the ratio of fiber radius to the the wavelength is large, which is known as smallsmall-wavelength limit. ¾ RayRay-tracing approach could give a more direct physical int ...
RIT - People - Rochester Institute of Technology
... Microlithography Systems – Phase Shifting Masks ...
... Microlithography Systems – Phase Shifting Masks ...
Get PDF - OSA Publishing
... a function of the distance away from the end of the wire. The values of d for which a reasonable signal can still be measured are considerably larger than those shown in Fig. 2(a). This is caused by the fact that the 6 mm diameter lens on the detector collects the radiation from a larger area and c ...
... a function of the distance away from the end of the wire. The values of d for which a reasonable signal can still be measured are considerably larger than those shown in Fig. 2(a). This is caused by the fact that the 6 mm diameter lens on the detector collects the radiation from a larger area and c ...
Introduction - Strathprints
... significantly enhanced by multiple reflections of the SH and fundamental waves within the film. Although the effects of multiple reflections were discussed in the early stages of SHG theory by Bloembergen and Pershan31, they were not properly taken into account until the work by Schoji et al32 who r ...
... significantly enhanced by multiple reflections of the SH and fundamental waves within the film. Although the effects of multiple reflections were discussed in the early stages of SHG theory by Bloembergen and Pershan31, they were not properly taken into account until the work by Schoji et al32 who r ...
Pulsar scintillations from corrugated reconnection sheets in the ISM
... with plasma frequency ωp = ne e2 /0 me . Pulsar observations are done at frequency much higher than the plasma ω2 ...
... with plasma frequency ωp = ne e2 /0 me . Pulsar observations are done at frequency much higher than the plasma ω2 ...
Laser oscillation in proton implanted Nd:YAG waveguides
... epitaxially grown Nd:YAG layers on pure YAG substrates [1], or helium implantation on Nd doped YAG crystals [2], allowing high slope efficiency and low threshold laser operation at 1.06 µm. In fact, Nd:YAG was the first material that demonstrated the suitability of the ion implantation technique to ...
... epitaxially grown Nd:YAG layers on pure YAG substrates [1], or helium implantation on Nd doped YAG crystals [2], allowing high slope efficiency and low threshold laser operation at 1.06 µm. In fact, Nd:YAG was the first material that demonstrated the suitability of the ion implantation technique to ...
Surface plasmon resonance microscopy
Surface Plasmon Resonance Microscopy (SPRM) is a label free analytical tool that combines the surface plasmon resonance of metallic surfaces with imaging of the metallic surface.The heterogeneity of the refractive index of the metallic surface imparts high contrast images, caused by the shift in the resonance angle.SPRM can achieve a thickness sensitivity of few tenths of nanometer and lateral resolution achieves values of micrometer scale.SPRM is used to characterize surfaces, self-assembled monolayers, multilayer films, metal nanoparticles, oligonucleotides arrays, binding and reduction reactions.Surface Plasmon polaritons are surface electromagnetic waves coupled to oscillating free electrons of a metallic surface that propagate along a metal/dielectric interface.Since polaritons are highly sensitive to small changes in the refractive index of the metallic material,it can be used as a biosensing tool that does not require labeling. SPRM measurements can be made in real-time.Wang and collaborators studied the binding kinetics of membrane proteins in single cells.The experimental setup of an SPRM can be seen in the Figure 1, where an adherent cell is grown on a gold film and placed in an inverted microscope, p-polarized light was used to create the surface plasmons on the gold film and a CCD camera was used to create the SPR image.