Basic Optics - Lynn`s Lecture Help
... Properties of Light ▪ UV, Visible, and Infrared Spectrums ▪ Reflection, Refraction, & Absorption ▪ Aberrations ...
... Properties of Light ▪ UV, Visible, and Infrared Spectrums ▪ Reflection, Refraction, & Absorption ▪ Aberrations ...
KM_958-20161014082558
... iii. real object, iv. images (real/virtual erect/inverted, magnification) b. Concave i. ray tracing, ii. focal length, iii. real object, iv. images (real/virtual erect/inverted, magnification) 6. Operating principles of optical equipment: a. microscopes, b. telescopes, c. cameras, d. glasses 7. Visi ...
... iii. real object, iv. images (real/virtual erect/inverted, magnification) b. Concave i. ray tracing, ii. focal length, iii. real object, iv. images (real/virtual erect/inverted, magnification) 6. Operating principles of optical equipment: a. microscopes, b. telescopes, c. cameras, d. glasses 7. Visi ...
option a review
... A standing wave is set up in the wire. This wave can be thought of as being made up from the superposition of two waves, a wave X travelling from A to B and a wave Y travelling from B to A. At one particular instant in time, the displacement of the wire is as shown. A background grid is given for re ...
... A standing wave is set up in the wire. This wave can be thought of as being made up from the superposition of two waves, a wave X travelling from A to B and a wave Y travelling from B to A. At one particular instant in time, the displacement of the wire is as shown. A background grid is given for re ...
Ammonia Optical Sensing by Microring Resonators
... Since microring resonance wavelengths are more than 20 nm spaced whereas maximum resonance wavelength shift over the sensor operating range is below 2 nm, the minimal detectable cladding refractive index shift also depends on accuracy in estimating the resonance wavelength shift. If a tunable laser ...
... Since microring resonance wavelengths are more than 20 nm spaced whereas maximum resonance wavelength shift over the sensor operating range is below 2 nm, the minimal detectable cladding refractive index shift also depends on accuracy in estimating the resonance wavelength shift. If a tunable laser ...
Temperature-dependent refractive index of silicon and germanium
... Array Camera (IRAC) for NASA's Spitzer Space Telescope, for which, for design purposes, index values for its lens inaterials were extrapolated froin literature values both in wavelength and in temperature. Such an approach leads to integration cycles which are far longer than anticipated, where best ...
... Array Camera (IRAC) for NASA's Spitzer Space Telescope, for which, for design purposes, index values for its lens inaterials were extrapolated froin literature values both in wavelength and in temperature. Such an approach leads to integration cycles which are far longer than anticipated, where best ...
Excitation of Surface Plasma Wave in Layered Structure of Au/Ap
... couple directly with light in air, i.e. SPW is non-radiative in this model. However, if a spacer-layer with dielectric constant es is introduced between the dielectric medium and the metal film such that the dielectric constant of the incident medium, er, is greater than E,, then the evanescent wave ...
... couple directly with light in air, i.e. SPW is non-radiative in this model. However, if a spacer-layer with dielectric constant es is introduced between the dielectric medium and the metal film such that the dielectric constant of the incident medium, er, is greater than E,, then the evanescent wave ...
How Surface Topography Relates to Materials` Properties
... the majority of materials have a surface landscape made up of undulations and even perhaps steep gradients and pores. These constitute the topography of the surface, a property that is often difficult to define by a few simple parameters but nevertheless can have a considerable impact on a material’ ...
... the majority of materials have a surface landscape made up of undulations and even perhaps steep gradients and pores. These constitute the topography of the surface, a property that is often difficult to define by a few simple parameters but nevertheless can have a considerable impact on a material’ ...
Controlling the flow of electromagnetic waves
... em waves placed at an angle of 30 degrees relative to the interface between the vacuum and the PC starts emitting almost monochromatic radiation at A= 1.73a (corresponding to PC refractive index equal to -0.7), the inner ray of which reaches the surface of the PC after a time interval of M =0.56to, ...
... em waves placed at an angle of 30 degrees relative to the interface between the vacuum and the PC starts emitting almost monochromatic radiation at A= 1.73a (corresponding to PC refractive index equal to -0.7), the inner ray of which reaches the surface of the PC after a time interval of M =0.56to, ...
Cloaking at Optical Frequencies - Cornell ECE
... diameter silicon posts embedded in an SiO2 medium, and the reflective surface consists of a distributed Bragg reflector (DBR). The distribution of posts induces a variation of the effective index of refraction across the surface through the relation εeff = ρSiO2εSiO2 + ρSiεSi, where ρ is the volumet ...
... diameter silicon posts embedded in an SiO2 medium, and the reflective surface consists of a distributed Bragg reflector (DBR). The distribution of posts induces a variation of the effective index of refraction across the surface through the relation εeff = ρSiO2εSiO2 + ρSiεSi, where ρ is the volumet ...
PPT
... – for glass, the critical internal angle is 42° – for water, it’s 49° – a ray within the higher index medium cannot escape at shallower angles (look at sky from underwater…) incoming ray hugs surface ...
... – for glass, the critical internal angle is 42° – for water, it’s 49° – a ray within the higher index medium cannot escape at shallower angles (look at sky from underwater…) incoming ray hugs surface ...
Cavity Enhanced Reflector Based Hybrid Silicon Laser
... grating is preferably patterned in the silicon waveguide. If operated at the Bragg wavelength, the silicon grating can be treated as a small periodic perturbation to the active waveguide, evanescently reflecting the forward propagating wave into a backward propagating wave. Unfortunately, the silico ...
... grating is preferably patterned in the silicon waveguide. If operated at the Bragg wavelength, the silicon grating can be treated as a small periodic perturbation to the active waveguide, evanescently reflecting the forward propagating wave into a backward propagating wave. Unfortunately, the silico ...
introduction - Academic Science,International Journal of Computer
... quantum well as the number of layers is increased, where the possible transmission is taken place once the incident electromagnetic wave propagates through the entire structure while being incident along the direction of quantum confinement. This can be noted irrespective of the material composition ...
... quantum well as the number of layers is increased, where the possible transmission is taken place once the incident electromagnetic wave propagates through the entire structure while being incident along the direction of quantum confinement. This can be noted irrespective of the material composition ...
Flat optics with designer metasurfaces
... phase associated with Fig. 4) are able to extend the phase response to cover the entire 2π range, which is necessary for a complete control of the wavefront. For example, in Fig. 1c the unit cell of the metasurface consisting of eight antennas produces a phase shift of the scattered light that incre ...
... phase associated with Fig. 4) are able to extend the phase response to cover the entire 2π range, which is necessary for a complete control of the wavefront. For example, in Fig. 1c the unit cell of the metasurface consisting of eight antennas produces a phase shift of the scattered light that incre ...
Period 3 Activity Solutions: Electromagnetic Waves – Radiant Energy II
... transparent, flexible plastic fiber. The core of each optical fiber has a large index of refraction. The core is wrapped in transparent material that has a lower index of refraction. When the light tries to leave the optical fiber, it is reflected. This process is called total internal reflection. c ...
... transparent, flexible plastic fiber. The core of each optical fiber has a large index of refraction. The core is wrapped in transparent material that has a lower index of refraction. When the light tries to leave the optical fiber, it is reflected. This process is called total internal reflection. c ...
Aberration-Free Ultrathin Flat Lenses and Axicons at Telecom
... 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 = 79, 68, 104, and 175°. Elements from 5 to 8 are obtained by rotating ...
... 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 = 79, 68, 104, and 175°. Elements from 5 to 8 are obtained by rotating ...
Week4-figs
... Historical Development: Ray Optics → Wave Optics → EM Optics → Quantum Optics. • Ray Optics is an approximation of Wave Optics in which wavelength short compared to other dimensions (focal lengths, diameter of optical components, etc.) so that Diffraction can be ignored. ...
... Historical Development: Ray Optics → Wave Optics → EM Optics → Quantum Optics. • Ray Optics is an approximation of Wave Optics in which wavelength short compared to other dimensions (focal lengths, diameter of optical components, etc.) so that Diffraction can be ignored. ...
Microscope Power Point File
... hair strand, or pond scum. Unfortunately, they do not have excellent resolution, so the image may be blurry. On the other hand, stereoscopic microscopes, as the name implies, provide a 3-D picture of bisected items, like muscle tissue or an organ. In this case, magnification is poor, so you can't ma ...
... hair strand, or pond scum. Unfortunately, they do not have excellent resolution, so the image may be blurry. On the other hand, stereoscopic microscopes, as the name implies, provide a 3-D picture of bisected items, like muscle tissue or an organ. In this case, magnification is poor, so you can't ma ...
Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost. In complex systems such as a telescope, the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer's binoculars or telescopic sight.Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure's performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.