Relation between s-Polarized and p-Polarized Internal Reflection
... Polarized infrared (IR) spectroscopy allows one to probe the orientation of chemical bonds.1-17 The features of polarized IR spectroscopy include (1) simultaneous probing of a wide variety of chemical bonds in organic, inorganic or hybrid materials, (2) sensitivity to measure films down to molecular ...
... Polarized infrared (IR) spectroscopy allows one to probe the orientation of chemical bonds.1-17 The features of polarized IR spectroscopy include (1) simultaneous probing of a wide variety of chemical bonds in organic, inorganic or hybrid materials, (2) sensitivity to measure films down to molecular ...
Linear momentum increase and negative optical forces
... One of the hypothetical realizations of a tractor beam discussed in the literature considers the question about the magnitude of electromagnetic momentum in dielectric media, that is, the Abraham– Minkowski controversy15,16. According to Minkowski’s approach, the momentum of a photon increases n tim ...
... One of the hypothetical realizations of a tractor beam discussed in the literature considers the question about the magnitude of electromagnetic momentum in dielectric media, that is, the Abraham– Minkowski controversy15,16. According to Minkowski’s approach, the momentum of a photon increases n tim ...
Tunable light emission from a boron nitride nanotube device
... its high mechanical strength, and its two-dimensional crystal structure similar to graphene. And specifically, the properties of hexagonal boron nitride nanotubes, the focus of this research, appear far superior to those of other materials currently being used as light emitters, for example, in appl ...
... its high mechanical strength, and its two-dimensional crystal structure similar to graphene. And specifically, the properties of hexagonal boron nitride nanotubes, the focus of this research, appear far superior to those of other materials currently being used as light emitters, for example, in appl ...
The Principle of Linear Superposition The Principle of Linear
... opposite to the slit would be illuminated. • Instead, Huygens’ principle requires that the wave spreads out. In other words, the light deviates from a straight line path and enters a region that would otherwise be shadowed. • The divergence of light from its initial line of travel is called diffract ...
... opposite to the slit would be illuminated. • Instead, Huygens’ principle requires that the wave spreads out. In other words, the light deviates from a straight line path and enters a region that would otherwise be shadowed. • The divergence of light from its initial line of travel is called diffract ...
Polarized light and polarizers
... In practice, some light is lost in the polarizer and the actual transmission of unpolarized light will be somewhat lower than this, around 38% for Polaroid-type polarizers. ...
... In practice, some light is lost in the polarizer and the actual transmission of unpolarized light will be somewhat lower than this, around 38% for Polaroid-type polarizers. ...
may11-95 as a Word 6.0 doc - Lyle School of Engineering
... 14. A lens is used to couple the optical power emanating from a semiconductor laser diode into an optical fiber. The full-angle beam divergence (perpendicular to the junction) of the semiconductor laser is 50°. The lens is chosen so that all of the light contained in the 50° full angle beam diverge ...
... 14. A lens is used to couple the optical power emanating from a semiconductor laser diode into an optical fiber. The full-angle beam divergence (perpendicular to the junction) of the semiconductor laser is 50°. The lens is chosen so that all of the light contained in the 50° full angle beam diverge ...
Michelson Interferometer - Research School of Physics and
... The circular pattern occurs when the mirrors are perfectly aligned. As the light comes from a small source the rays travel out at an angle, so travel slightly different distances to and from the mirrors. The interferometer can be used to measure optical surfaces or structures. Keep the circular frin ...
... The circular pattern occurs when the mirrors are perfectly aligned. As the light comes from a small source the rays travel out at an angle, so travel slightly different distances to and from the mirrors. The interferometer can be used to measure optical surfaces or structures. Keep the circular frin ...
EVERYDAY ENGINEERING EXAMPLES FOR SIMPLE CONCEPTS
... than transparent materials. Some light is scattered or absorbed and some is reflected. We can see objects through translucent materials but because some of the light is scattered or absorbed we cannot see them clearly. iii) Opaque materials, such as cardboard or wood, scatter, absorb or reflect most ...
... than transparent materials. Some light is scattered or absorbed and some is reflected. We can see objects through translucent materials but because some of the light is scattered or absorbed we cannot see them clearly. iii) Opaque materials, such as cardboard or wood, scatter, absorb or reflect most ...
Inter 1-4
... dark fringes is known as fringe width and is same everywhere on the screen. For bright fringes ; mth order fringe occurs when ...
... dark fringes is known as fringe width and is same everywhere on the screen. For bright fringes ; mth order fringe occurs when ...
Surface-plasmon-polariton-induced suppressed
... is comparable to its optical penetration depth. When the film is periodically modulated by subwavelength apertures, one intuitively expects that the ultrathin film could transmit even more light because less material is blocking the light. Surprisingly, however, by means of analytical and numerical ...
... is comparable to its optical penetration depth. When the film is periodically modulated by subwavelength apertures, one intuitively expects that the ultrathin film could transmit even more light because less material is blocking the light. Surprisingly, however, by means of analytical and numerical ...
Ray Optics at a Deep-Subwavelength Scale: A Transformation Optics Approach Seunghoon Han,
... To generalize the imaging characteristics, a subdiffractionlimited object, shown in Figure 4a, is imaged to the far field by a 5× magnifying transformer with air surroundings (blue line in Figure 4b). At the input and output planes of the transformer, thin GaN layers were added to enhance the impeda ...
... To generalize the imaging characteristics, a subdiffractionlimited object, shown in Figure 4a, is imaged to the far field by a 5× magnifying transformer with air surroundings (blue line in Figure 4b). At the input and output planes of the transformer, thin GaN layers were added to enhance the impeda ...
Principles of Spectroscopy
... Infrared light emitted from a source (e.g. a SiC glower) is directed into an interferometer, which modulates the light. After the interferometer the light passes through the sample compartment (and also the sample) and is then focused onto the detector. The signal measured by the detector is called ...
... Infrared light emitted from a source (e.g. a SiC glower) is directed into an interferometer, which modulates the light. After the interferometer the light passes through the sample compartment (and also the sample) and is then focused onto the detector. The signal measured by the detector is called ...
Lens Types
... from the object to the lens, z2 is the length from the lens to the focal point, and f is the focal length the equation to find the magnification is , M=-(z2/z1) You would place a sensor at the focal point to get a focused image Convex have a + focal length (image is on the other side of light) Conca ...
... from the object to the lens, z2 is the length from the lens to the focal point, and f is the focal length the equation to find the magnification is , M=-(z2/z1) You would place a sensor at the focal point to get a focused image Convex have a + focal length (image is on the other side of light) Conca ...
Low-Loss TiO2 Planar Waveguides for Nanophotonic
... School of Engineering and Applied Sciences, Harvard University, 9 Oxford Street, Cambridge, MA, 02138 ...
... School of Engineering and Applied Sciences, Harvard University, 9 Oxford Street, Cambridge, MA, 02138 ...
Second-Surface Silvered Glass Solar Mirrors of Very
... by the National Renewable Energy Laboratory (NREL) [17]. Figure 7 shows the hemispherical reflectance for the two glass samples—both as measured and the theoretical curves of the design. The 2σ (95.4% confidence level) uncertainty in the measured reflectance (R) at a specific wavelength (λ) is ± 0.4 ...
... by the National Renewable Energy Laboratory (NREL) [17]. Figure 7 shows the hemispherical reflectance for the two glass samples—both as measured and the theoretical curves of the design. The 2σ (95.4% confidence level) uncertainty in the measured reflectance (R) at a specific wavelength (λ) is ± 0.4 ...
Contactless visible light probing for nanoscale ICs through 10 μm
... indicates that the best choice is Gallium Phosphide (GaP). With n = 3.3 at 658 nm wavelength, it offers a maximum opening angle ȕ1max of 59.0° at the GaP-Si interface (compared to 15,1° for air-Si) and an improvement in resolution equal to the index of refraction by 3.3. Current research [8] shows t ...
... indicates that the best choice is Gallium Phosphide (GaP). With n = 3.3 at 658 nm wavelength, it offers a maximum opening angle ȕ1max of 59.0° at the GaP-Si interface (compared to 15,1° for air-Si) and an improvement in resolution equal to the index of refraction by 3.3. Current research [8] shows t ...
Negative refraction and Negative refractive index
... , the refracted effective index of the medium N that is a function of N o and N e angle of the wave vector exceeds the incident angle and a critical angle ( θc = sin −1 (s x N eff / N 0 ) ) can be defined as the refracted angle of the wave vector reaches 90° . When the incident angle exceeds the ...
... , the refracted effective index of the medium N that is a function of N o and N e angle of the wave vector exceeds the incident angle and a critical angle ( θc = sin −1 (s x N eff / N 0 ) ) can be defined as the refracted angle of the wave vector reaches 90° . When the incident angle exceeds the ...
PHYSICAL SCI E09 11
... 6. TSW explain the nature of light as both particle and wave and describe the evidence for the dual nature of electromagnetic radiation. (p. 536 – 537) 7. TSW diagram the electromagnetic spectrum and recognize the relationship of wavelength and frequency to this sequence. (p. 539 - 545) 8. TSW descr ...
... 6. TSW explain the nature of light as both particle and wave and describe the evidence for the dual nature of electromagnetic radiation. (p. 536 – 537) 7. TSW diagram the electromagnetic spectrum and recognize the relationship of wavelength and frequency to this sequence. (p. 539 - 545) 8. TSW descr ...
7.13 Experimental Microbial Genetics
... difference of 0 results in no transmitted light; maximum light is transmitted if the path difference is half the wavelength. By these means, different regions of the specimen appear bright or less bright in contrast to the mid-gray background. Phase-contrast microscope is useful in examining the str ...
... difference of 0 results in no transmitted light; maximum light is transmitted if the path difference is half the wavelength. By these means, different regions of the specimen appear bright or less bright in contrast to the mid-gray background. Phase-contrast microscope is useful in examining the str ...
Lab 5: Polarization of Light 1 Introduction 2 Linear Polarization 3
... Calcite. If the optic axis of a calcite (aka Iceland spar) crystal is oriented properly, and the crystal is placed on a piece of paper with printing on it, as you look through you will see a double image of the letters. Upon rotating the crystal, one of the images will stay fixed, while the other ro ...
... Calcite. If the optic axis of a calcite (aka Iceland spar) crystal is oriented properly, and the crystal is placed on a piece of paper with printing on it, as you look through you will see a double image of the letters. Upon rotating the crystal, one of the images will stay fixed, while the other ro ...
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.