PPT
... 2. How could we change the relative path-length difference, and thereby change how much light exits the bottom port? Rotate the entire interferometer (in the plane of the paper). For example, if we rotate it clockwise, the light making the clockwise circuit will have farther to go (the beamsplitter ...
... 2. How could we change the relative path-length difference, and thereby change how much light exits the bottom port? Rotate the entire interferometer (in the plane of the paper). For example, if we rotate it clockwise, the light making the clockwise circuit will have farther to go (the beamsplitter ...
Physics 316 B2 1 Revised 3/7/08 Experiment B2: Monochromatic
... of the components so that you obtain a large number of fringes when you view them from across the room. Start with the observing position no more than 100 cm from the prism. When you have adjusted to get sharp fringes, increase the prism-observing distance to about 2m, making whatever adjustments ar ...
... of the components so that you obtain a large number of fringes when you view them from across the room. Start with the observing position no more than 100 cm from the prism. When you have adjusted to get sharp fringes, increase the prism-observing distance to about 2m, making whatever adjustments ar ...
Two Quick Light Experiments
... Incandescent light is electromagnetic radiation given off a body because that body has a temperature. Because this radiation is due to a thermal process, it tends to be randomized. Thus, there is a spread of frequencies (hence white light) and also no preferred direction for the electric and magneti ...
... Incandescent light is electromagnetic radiation given off a body because that body has a temperature. Because this radiation is due to a thermal process, it tends to be randomized. Thus, there is a spread of frequencies (hence white light) and also no preferred direction for the electric and magneti ...
File
... secondary wavelets which travels in all directions with the velocity of light. b. A surface touching these secondary wavelets tangentially in forward direction at any instant gives secondary wavefront at that instant. 3. Superposition principle : The principle of superposition states that whenever t ...
... secondary wavelets which travels in all directions with the velocity of light. b. A surface touching these secondary wavelets tangentially in forward direction at any instant gives secondary wavefront at that instant. 3. Superposition principle : The principle of superposition states that whenever t ...
PH 481
... In this experiment the birefringence of a material will be used to change the polarization of the laser beam. You will use a quarter-wave plate and a polarizer to build an optical isolator. This is a useful device that ensures that light is not reflected back into the laser. This has practical impor ...
... In this experiment the birefringence of a material will be used to change the polarization of the laser beam. You will use a quarter-wave plate and a polarizer to build an optical isolator. This is a useful device that ensures that light is not reflected back into the laser. This has practical impor ...
Physics - No Brain Too Small
... Image: is same size as object appears as far behind mirror as object is in front is virtual can’t be projected onto a screen / rays of light don’t actually go there. is laterally inverted (back to front) Reflection of sound Reflection of sound off a hard surface is called an echo. Remember in c ...
... Image: is same size as object appears as far behind mirror as object is in front is virtual can’t be projected onto a screen / rays of light don’t actually go there. is laterally inverted (back to front) Reflection of sound Reflection of sound off a hard surface is called an echo. Remember in c ...
Chapter #35 Light and Optics Wave Fronts Electromagnetic Wave
... • When a ray of light enters a medium where its speed decreases, it is bent toward the normal. • When a ray of light enters a medium where its speed increases, it is bent away from the normal. • Direction of propagation does not change if there is no change in the index of refraction. • If a ray ...
... • When a ray of light enters a medium where its speed decreases, it is bent toward the normal. • When a ray of light enters a medium where its speed increases, it is bent away from the normal. • Direction of propagation does not change if there is no change in the index of refraction. • If a ray ...
LOC06f Diffraction of Light
... 1. Never look directly into the laser beam. Laser light has a high intensity and can also be easily focused. A direct shot of the laser beam on your eye will be focused by your eye’s lens onto a small spot on your retina and can burn or possibly detach the retina. 2. Never hold an object by hand in ...
... 1. Never look directly into the laser beam. Laser light has a high intensity and can also be easily focused. A direct shot of the laser beam on your eye will be focused by your eye’s lens onto a small spot on your retina and can burn or possibly detach the retina. 2. Never hold an object by hand in ...
explanation
... There are phenomena that are associated to waves like sound waves or waves in water. Examples are diffraction and interference. When these same phenomena were observed (and correctly interpreted) also for light, the wave nature of light was assessed. It was the beginning of the 19th century (thanks ...
... There are phenomena that are associated to waves like sound waves or waves in water. Examples are diffraction and interference. When these same phenomena were observed (and correctly interpreted) also for light, the wave nature of light was assessed. It was the beginning of the 19th century (thanks ...
Glencoe Physics Chapter 16
... 3. the same size - no enlargement or reduction 4. located the same distance behind the mirror as the object is in front of the mirror - image gets smaller as you move away 5. virtual - not real, appears to be behind the mirror Page 463; 6,9,10 ...
... 3. the same size - no enlargement or reduction 4. located the same distance behind the mirror as the object is in front of the mirror - image gets smaller as you move away 5. virtual - not real, appears to be behind the mirror Page 463; 6,9,10 ...
Document
... hit near the outside of mirror are focused at a different point when compared with those that are close to the centre. • This causes a blurring of the image, and is known as spherical aberration. ...
... hit near the outside of mirror are focused at a different point when compared with those that are close to the centre. • This causes a blurring of the image, and is known as spherical aberration. ...
Lecture 22 - LSU Physics
... The reflected pulse is DOWN if the speed of propagation in the right is slower than on the left. (High impedance.) The extreme case of ZERO speed on the right corresponds to a rope anchored to a wall. (Highest impedance.) If we have a wave instead of a pulse “DOWN” means 180 degrees OUT of phase, an ...
... The reflected pulse is DOWN if the speed of propagation in the right is slower than on the left. (High impedance.) The extreme case of ZERO speed on the right corresponds to a rope anchored to a wall. (Highest impedance.) If we have a wave instead of a pulse “DOWN” means 180 degrees OUT of phase, an ...
Assembly, Alignment, and Maintenance of an Automated Laser Cutter
... CO2 laser beam. Focusing such a laser beam yields a super-high energy density, so when this beam is focused onto the surface of a target material it can do something much more complex than merely melt the material at that spot: instead, it can thermally induce shockwaves that locally ablate a wide r ...
... CO2 laser beam. Focusing such a laser beam yields a super-high energy density, so when this beam is focused onto the surface of a target material it can do something much more complex than merely melt the material at that spot: instead, it can thermally induce shockwaves that locally ablate a wide r ...
optics(conceptuals)
... Q.49 Focal length of an equiconvex lens is equal to the radius of curvature of either face. What is the refractive index of lens material? Q.50 What should be the position of an object so that a convex lens behaves like a magnifying lens? Draw a ray diagram for it. Q.51 Can a convex lens act as a di ...
... Q.49 Focal length of an equiconvex lens is equal to the radius of curvature of either face. What is the refractive index of lens material? Q.50 What should be the position of an object so that a convex lens behaves like a magnifying lens? Draw a ray diagram for it. Q.51 Can a convex lens act as a di ...
Holography
Holography is the science and practice of making holograms. Typically, a hologram is a photographic recording of a light field, rather than of an image formed by a lens, and it is used to display a fully three-dimensional image of the holographed subject, which is seen without the aid of special glasses or other intermediate optics. The hologram itself is not an image and it is usually unintelligible when viewed under diffuse ambient light. It is an encoding of the light field as an interference pattern of seemingly random variations in the opacity, density, or surface profile of the photographic medium. When suitably lit, the interference pattern diffracts the light into a reproduction of the original light field and the objects that were in it appear to still be there, exhibiting visual depth cues such as parallax and perspective that change realistically with any change in the relative position of the observer.In its pure form, holography requires the use of laser light for illuminating the subject and for viewing the finished hologram. In a side-by-side comparison under optimal conditions, a holographic image is visually indistinguishable from the actual subject, if the hologram and the subject are lit just as they were at the time of recording. A microscopic level of detail throughout the recorded volume of space can be reproduced. In common practice, however, major image quality compromises are made to eliminate the need for laser illumination when viewing the hologram, and sometimes, to the extent possible, also when making it. Holographic portraiture often resorts to a non-holographic intermediate imaging procedure, to avoid the hazardous high-powered pulsed lasers otherwise needed to optically ""freeze"" living subjects as perfectly as the extremely motion-intolerant holographic recording process requires. Holograms can now also be entirely computer-generated and show objects or scenes that never existed.Holography should not be confused with lenticular and other earlier autostereoscopic 3D display technologies, which can produce superficially similar results but are based on conventional lens imaging. Stage illusions such as Pepper's Ghost and other unusual, baffling, or seemingly magical images are also often incorrectly called holograms.