PSC1341 Chapter 4 Waves Waves • A wave is a repeating
... has either one curved surface or one flat surface or two curved surfaces. Lenses are either convex or concave. Convex lenses are thicker in the middle then the edges and concave are thicker at the edges then the middle. When light travels through lenses, refraction occurs. The light bends either out ...
... has either one curved surface or one flat surface or two curved surfaces. Lenses are either convex or concave. Convex lenses are thicker in the middle then the edges and concave are thicker at the edges then the middle. When light travels through lenses, refraction occurs. The light bends either out ...
speckling in diffraction patterns and optical images formed with the
... maximum intensity that can be produced increases with ·the number of interfering waves, the envelope of the intensity in the diffraction pattern will be expected to have a greater value at Q1 than at Q2. Thus, if the sizes of scattering elements have a gaussian type distribution about a mean, the en ...
... maximum intensity that can be produced increases with ·the number of interfering waves, the envelope of the intensity in the diffraction pattern will be expected to have a greater value at Q1 than at Q2. Thus, if the sizes of scattering elements have a gaussian type distribution about a mean, the en ...
COLLEGE OF SCIENCE
... This course covers the wave properties of light, its interaction with matter, and the application of these principles to imaging systems. Topics include polarization of light, birefringence, interference and interferometers, spatial and temporal coherence, and scalar diffraction theory. (IMGS-633 or ...
... This course covers the wave properties of light, its interaction with matter, and the application of these principles to imaging systems. Topics include polarization of light, birefringence, interference and interferometers, spatial and temporal coherence, and scalar diffraction theory. (IMGS-633 or ...
Physics 201: Experiment #5 – Electron Diffraction
... corresponding to planes of carbon atoms separated by 1.23 and 2.13 Å. The source of the beam of electrons is an indirectly heated oxide – coated cathode, the heater of which is connected to 4 mm sockets in a plastic cap at the end of the neck. A 2 mm plug is supplied with each tube for connecting th ...
... corresponding to planes of carbon atoms separated by 1.23 and 2.13 Å. The source of the beam of electrons is an indirectly heated oxide – coated cathode, the heater of which is connected to 4 mm sockets in a plastic cap at the end of the neck. A 2 mm plug is supplied with each tube for connecting th ...
AP Physics B Waves and Optics Sample MC
... (A) obstacles are small and slits are small compared to wavelength. (B) obstacles are small and slits are big compared to wavelength. (C) obstacles are big and slits are small compared to wavelength. (D) obstacles are big and slits are big compared to wavelength. 29. Young’s Double slit experiment i ...
... (A) obstacles are small and slits are small compared to wavelength. (B) obstacles are small and slits are big compared to wavelength. (C) obstacles are big and slits are small compared to wavelength. (D) obstacles are big and slits are big compared to wavelength. 29. Young’s Double slit experiment i ...
Interference effects Thin film interference Phase
... A rectangular loop of wire 20 cm square is dipped into a soap solution an then held vertically, producing a soap film whose thickness varies linearly from essentially zero at the top to 1.0μm at the bottom. If the film is illuminated with 650 nm light how many bright bands will appear? ...
... A rectangular loop of wire 20 cm square is dipped into a soap solution an then held vertically, producing a soap film whose thickness varies linearly from essentially zero at the top to 1.0μm at the bottom. If the film is illuminated with 650 nm light how many bright bands will appear? ...
PHYS 6000 C01, Spring 2003
... PHYS 208-GH, Fall 2005 Final Exam (Monday, December 19) 1. We use a telescope to observe two distant points sources 2.5m apart with light of 600nm. The slit in the telescope has a width of 0.35mm. What is the maximum distance in meters at which the two sources maybe distinguished if the resolution i ...
... PHYS 208-GH, Fall 2005 Final Exam (Monday, December 19) 1. We use a telescope to observe two distant points sources 2.5m apart with light of 600nm. The slit in the telescope has a width of 0.35mm. What is the maximum distance in meters at which the two sources maybe distinguished if the resolution i ...
Chapter 24 Lecture Notes
... Christiaan Huygen’s principle predicts where the wavefront will be at a later time. It says that every point on a wavefront can be considered as a source for more wavefronts. The new wave will be tangent to all the little wave fronts. (See figure 24-1, and 24-2). This can be used to explain what hap ...
... Christiaan Huygen’s principle predicts where the wavefront will be at a later time. It says that every point on a wavefront can be considered as a source for more wavefronts. The new wave will be tangent to all the little wave fronts. (See figure 24-1, and 24-2). This can be used to explain what hap ...
Lectures 18-20: Diffraction
... a set of N slits with finite apertures of width a, spaced a distance b apart, we expect the resultant intensity distribution to be a superposition of the amplitudes from N slits each one modified by the diffraction pattern due to the finite slit width. Let us revisit the multiple-slit interference p ...
... a set of N slits with finite apertures of width a, spaced a distance b apart, we expect the resultant intensity distribution to be a superposition of the amplitudes from N slits each one modified by the diffraction pattern due to the finite slit width. Let us revisit the multiple-slit interference p ...
Document
... The free electrons in metal allow photons to be absorbed and re-emitted as a “bounce.” ...
... The free electrons in metal allow photons to be absorbed and re-emitted as a “bounce.” ...
Homework set 1, due September 4, 11:40 am
... 5. (20 points) Consider a linearly polarized plane electromagnetic wave traveling in the +x-direction in free space having as its plane of vibration the xy plane. Given that its frequency is 10 MHz and its amplitude is E0= 0.08 V/m (a) Find the period and wavelength of the wave. (b) Write an express ...
... 5. (20 points) Consider a linearly polarized plane electromagnetic wave traveling in the +x-direction in free space having as its plane of vibration the xy plane. Given that its frequency is 10 MHz and its amplitude is E0= 0.08 V/m (a) Find the period and wavelength of the wave. (b) Write an express ...
2.2.3.- X-ray diffraction
... c) The x-ray generator emits radiation in all directions. The entrance Soller slits are used to obtain a parallel and collimated beam. This is accomplished by several fine metallic foils, very close to each other that are located parallel to the diffraction circle plane. d) There are two divergence ...
... c) The x-ray generator emits radiation in all directions. The entrance Soller slits are used to obtain a parallel and collimated beam. This is accomplished by several fine metallic foils, very close to each other that are located parallel to the diffraction circle plane. d) There are two divergence ...
Diffraction
Diffraction refers to various phenomena which occur when a wave encounters an obstacle or a slit. In classical physics, the diffraction phenomenon is described as the interference of waves according to the Huygens–Fresnel principle. These characteristic behaviors are exhibited when a wave encounters an obstacle or a slit that is comparable in size to its wavelength. Similar effects occur when a light wave travels through a medium with a varying refractive index, or when a sound wave travels through a medium with varying acoustic impedance. Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as visible light, X-rays and radio waves.Since physical objects have wave-like properties (at the atomic level), diffraction also occurs with matter and can be studied according to the principles of quantum mechanics. Italian scientist Francesco Maria Grimaldi coined the word ""diffraction"" and was the first to record accurate observations of the phenomenon in 1660.While diffraction occurs whenever propagating waves encounter such changes, its effects are generally most pronounced for waves whose wavelength is roughly comparable to the dimensions of the diffracting object or slit. If the obstructing object provides multiple, closely spaced openings, a complex pattern of varying intensity can result. This is due to the addition, or interference, of different parts of a wave that travels to the observer by different paths, where different path lengths result in different phases (see diffraction grating and wave superposition). The formalism of diffraction can also describe the way in which waves of finite extent propagate in free space. For example, the expanding profile of a laser beam, the beam shape of a radar antenna and the field of view of an ultrasonic transducer can all be analyzed using diffraction equations.