Provedení, principy činnosti a základy výpočtu pro výměníky tepla
... Foil SG. Metallic wire (e.g. constantan) included in a thin plastic sheet. The foil is bonded to surface of measured object e.g. by cyanoacrylate glue. Typical gauge factor is 2 and resistance 120 (almost the same as resistance of Pt100 thermometers. Therefore the same technique for measurement of ...
... Foil SG. Metallic wire (e.g. constantan) included in a thin plastic sheet. The foil is bonded to surface of measured object e.g. by cyanoacrylate glue. Typical gauge factor is 2 and resistance 120 (almost the same as resistance of Pt100 thermometers. Therefore the same technique for measurement of ...
Advanced Optics Lab at San Jose State University Ramen
... illuminate a substantial part of the grating which will result in higher resolution. • (b) building a telescope The students select two doublet lenses for the telescope keeping in mind the fact that they have to overfill the pupil of their eyes so that the spectrum does not disappear on moving one's ...
... illuminate a substantial part of the grating which will result in higher resolution. • (b) building a telescope The students select two doublet lenses for the telescope keeping in mind the fact that they have to overfill the pupil of their eyes so that the spectrum does not disappear on moving one's ...
extra information - Patrick Tevlin Music
... become less focussed at other distances. This doesn’t happen with the laser pointer. The laser light may or may not be more concentrated. This can be measured with a light meter. You would have to control for the flashlight beam’s greater area. A piece of cardboard with a hole the size of the laser ...
... become less focussed at other distances. This doesn’t happen with the laser pointer. The laser light may or may not be more concentrated. This can be measured with a light meter. You would have to control for the flashlight beam’s greater area. A piece of cardboard with a hole the size of the laser ...
PH1012 - Physics 1B
... but also exposure to the ideas of modern physics including quantum concepts, and to applications including laser physics and optical communications. It is intended that the two modules should be similar in standard to that of the Advanced Higher in Physics although the syllabi will not match in ever ...
... but also exposure to the ideas of modern physics including quantum concepts, and to applications including laser physics and optical communications. It is intended that the two modules should be similar in standard to that of the Advanced Higher in Physics although the syllabi will not match in ever ...
Three Lasers Converging at a Focal Point : A Demonstration
... The point at which parallel light rays meet is called the focal point. The distance from the lens to the point where the light rays meet is called the focal length. What You Need For the class: 3 laser pointers 1 acrylic block 1 velum screen or a wall 1 large positive lens mister For e ...
... The point at which parallel light rays meet is called the focal point. The distance from the lens to the point where the light rays meet is called the focal length. What You Need For the class: 3 laser pointers 1 acrylic block 1 velum screen or a wall 1 large positive lens mister For e ...
Design for a Compact Tunable Ti:Sapphire Laser.
... but they suffer from a complex design and tend to be rather costly. In fact, continuous tuning over several hundreds of nanometers in combination with a large scanning range requires a number of precisely manufactured intracavity elements such as birefringent filters and electronically controlled é ...
... but they suffer from a complex design and tend to be rather costly. In fact, continuous tuning over several hundreds of nanometers in combination with a large scanning range requires a number of precisely manufactured intracavity elements such as birefringent filters and electronically controlled é ...
Michelson Interferometer - Research School of Physics and
... Explain how the lenses might change the interference pattern given the speed of light in air and these media is different. Tap the laser bench or table with your hand. Note how sensitive the pattern is to vibrations. This isn’t surprising as the interference pattern is generated from light waves 650 ...
... Explain how the lenses might change the interference pattern given the speed of light in air and these media is different. Tap the laser bench or table with your hand. Note how sensitive the pattern is to vibrations. This isn’t surprising as the interference pattern is generated from light waves 650 ...
A.Lobko, Laser acceleration of electrons and ions: principles, issues
... The laser starts to ionize the surface of the initially opaque target and successively heats more and more electrons to relativistic energies. Provided, the target is thin enough and has not blown apart under the irradiation of the laser pedestal, the laser will eventually promote all electrons with ...
... The laser starts to ionize the surface of the initially opaque target and successively heats more and more electrons to relativistic energies. Provided, the target is thin enough and has not blown apart under the irradiation of the laser pedestal, the laser will eventually promote all electrons with ...
Title: EXTREME LIGHT
... phase of its oscillations. More important, the magnetic field of the light wave starts to play a role. A magnetic field exerts a force on an electric charge only when the charge is moving. In the regime of classical optics the magnetic force is negligible. But for electron oscillation velocities nea ...
... phase of its oscillations. More important, the magnetic field of the light wave starts to play a role. A magnetic field exerts a force on an electric charge only when the charge is moving. In the regime of classical optics the magnetic force is negligible. But for electron oscillation velocities nea ...
A Ti: Sapphire Planar Waveguide Laser Grown by Pulsed Laser
... The materials growth, undertaken at FO.R.T.H., involved ablation of a single crystal Ti: sapphire target of 0.12 wt % Ti2O3 using a KrF excimer (Lambda Physik LPX200 operating at 25Hz with 500mJ per pulse) focussed to an energy density of •4J cm-2 . The vacuum chamber was evacuated to a base pressu ...
... The materials growth, undertaken at FO.R.T.H., involved ablation of a single crystal Ti: sapphire target of 0.12 wt % Ti2O3 using a KrF excimer (Lambda Physik LPX200 operating at 25Hz with 500mJ per pulse) focussed to an energy density of •4J cm-2 . The vacuum chamber was evacuated to a base pressu ...
laser
... Laser-Compton scattering experiments, as an alternative schemes for polarized positron source of ILC, have a good potential to be expanded into very wide, various, and interesting field. For example, not only for physics and accelerator applications, medical and industrial applications are expected. ...
... Laser-Compton scattering experiments, as an alternative schemes for polarized positron source of ILC, have a good potential to be expanded into very wide, various, and interesting field. For example, not only for physics and accelerator applications, medical and industrial applications are expected. ...
a) Given the transfer function of a detector (below), label and
... 8. You have laser scanning microscope equipped with a 20x dry objective (NA=0.55), a 40x dry objective (NA = 0.8), a 60x dry objective (NA = 0.95) and a 60x water immersion objective (f# = 0.74). The system has a 380 nm continuous laser source with 400mW power, a 490 nm continuous laser source with ...
... 8. You have laser scanning microscope equipped with a 20x dry objective (NA=0.55), a 40x dry objective (NA = 0.8), a 60x dry objective (NA = 0.95) and a 60x water immersion objective (f# = 0.74). The system has a 380 nm continuous laser source with 400mW power, a 490 nm continuous laser source with ...
Operating Principles
... There are three types of electron transitions, as shown in figure 2. The first type of transition, shown in figure 2 (a), is known as resonant absorption. An electron transits from the stable low energy level, E1, to the higher energy level, E2, by absorbing light. Figure 2 (b) shows spontaneous emi ...
... There are three types of electron transitions, as shown in figure 2. The first type of transition, shown in figure 2 (a), is known as resonant absorption. An electron transits from the stable low energy level, E1, to the higher energy level, E2, by absorbing light. Figure 2 (b) shows spontaneous emi ...
Towards microwave modulation in a wavelength-tuned magneto-optical trap
... two important points that need to be discussed are the operation of diode lasers and the phenomenon of modulation. Diode lasers are just semiconductor lasers, and operate on the same principles as semiconductors. A typical diode laser is a p-doped semiconductor stacked on an n-doped semiconductor wi ...
... two important points that need to be discussed are the operation of diode lasers and the phenomenon of modulation. Diode lasers are just semiconductor lasers, and operate on the same principles as semiconductors. A typical diode laser is a p-doped semiconductor stacked on an n-doped semiconductor wi ...
Light Sources * II The Laser
... Phase shift in the upper arm output is L m Phase shift in the lower arm output is L If m is even - - constructi ve interferen ce (inphase) If m is odd - - destructiv en interferen ce (opposite phase) Light intensity modulation will result for all other valu es of m ...
... Phase shift in the upper arm output is L m Phase shift in the lower arm output is L If m is even - - constructi ve interferen ce (inphase) If m is odd - - destructiv en interferen ce (opposite phase) Light intensity modulation will result for all other valu es of m ...
SUPPLEMENTAL MATERIA_Revised2
... S1, even without any further optimization of the fabrication process. The microphotograph in the inset of Fig. 1 shows how the WGMs were localized inside the microsphere, and how the CQD optical gain media appears to couple into the modes by the evanescent wave modes. The spectral ...
... S1, even without any further optimization of the fabrication process. The microphotograph in the inset of Fig. 1 shows how the WGMs were localized inside the microsphere, and how the CQD optical gain media appears to couple into the modes by the evanescent wave modes. The spectral ...
LASER AND ELECTRICAL SAFETY AND LASER CLASSIFICATION
... per pulse (joule), pulse duration, pulse repetition frequency and emergent beam radiant exposure are considered. ...
... per pulse (joule), pulse duration, pulse repetition frequency and emergent beam radiant exposure are considered. ...
Measure the Distance Between Tracks of CD and DVD
... special disk that can store up to 4.7 GB information on a single layer on the disk. The new devices can store information on both sides, so the total amount of information is 9.4 GB. The size of the DVD is the same as CD, but because it use a shorter wavelength, the pits can be smaller (minimum size ...
... special disk that can store up to 4.7 GB information on a single layer on the disk. The new devices can store information on both sides, so the total amount of information is 9.4 GB. The size of the DVD is the same as CD, but because it use a shorter wavelength, the pits can be smaller (minimum size ...
LOC06f Diffraction of Light
... can be almost as strong as the incident beam. Know where the reflections are and block them if necessary. 5. If the laser has a shutter in front of the beam, use it. When not taking data, place the shutter in front of the laser beam. If there is no shutter then block the laser beam or turn off the l ...
... can be almost as strong as the incident beam. Know where the reflections are and block them if necessary. 5. If the laser has a shutter in front of the beam, use it. When not taking data, place the shutter in front of the laser beam. If there is no shutter then block the laser beam or turn off the l ...
RA19 - Laser Lift-Off Techniques
... exceed optical DOF, some means of part mapping or autofocus may be necessary. To minimize damage due to transients and temperature gradients, some workers have used background heating, though it is not universal Single device area is typically in the range 0.3-2mm, thus requiring on-target energies ...
... exceed optical DOF, some means of part mapping or autofocus may be necessary. To minimize damage due to transients and temperature gradients, some workers have used background heating, though it is not universal Single device area is typically in the range 0.3-2mm, thus requiring on-target energies ...
Laser Lights
... This activity is about curiosity, making hypotheses, and experimentation. Ask visitors to choose one or more of the supplies and ask a question or make a prediction, such as, “I wonder what happens when I shine a laser through a magnifying lens?” or “I think that if I shine a laser at a mirror that ...
... This activity is about curiosity, making hypotheses, and experimentation. Ask visitors to choose one or more of the supplies and ask a question or make a prediction, such as, “I wonder what happens when I shine a laser through a magnifying lens?” or “I think that if I shine a laser at a mirror that ...
LASERS How do they work?
... used. For example, laser diodes are pumped by passing an electric current across the junction where the two types of semiconductor within the diode come together. Laser oscillator ...
... used. For example, laser diodes are pumped by passing an electric current across the junction where the two types of semiconductor within the diode come together. Laser oscillator ...
four workable ways to determine the height of a tall building using a
... hit or “shoot” architects and building staff with it. As one reader pointed out, this may require plugging the laser into the wall for added authenticity. ...
... hit or “shoot” architects and building staff with it. As one reader pointed out, this may require plugging the laser into the wall for added authenticity. ...
Paper
... The Letter by Deng et al. [1] presents an analytic theoretical description of matter-wave superradiance [2] which claims to go beyond previous theoretical frameworks. I show here that the theory presented in this Letter is not a description of superradiance per se, but rather an elegant perturbative ...
... The Letter by Deng et al. [1] presents an analytic theoretical description of matter-wave superradiance [2] which claims to go beyond previous theoretical frameworks. I show here that the theory presented in this Letter is not a description of superradiance per se, but rather an elegant perturbative ...
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term ""laser"" originated as an acronym for ""light amplification by stimulated emission of radiation"". The first laser was built in 1960 by Theodore H. Maiman at Hughes Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light coherently. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers. Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum, i.e., they can emit a single color of light. Temporal coherence can be used to produce pulses of light as short as a femtosecond.Among their many applications, lasers are used in optical disk drives, laser printers, and barcode scanners; fiber-optic and free-space optical communication; laser surgery and skin treatments; cutting and welding materials; military and law enforcement devices for marking targets and measuring range and speed; and laser lighting displays in entertainment.