Intuitive explanation of the phase anomaly of focused light beams
... Linfoot and Wolf5 have shown that the 180-degree total phase change results from a rather complicated phase distri bution within the focal region. This phase distribution was derived by use of Kirchoff's diffraction theory in terms of the Lommel functions. Linfoot and Wolf also showed that, in larg ...
... Linfoot and Wolf5 have shown that the 180-degree total phase change results from a rather complicated phase distri bution within the focal region. This phase distribution was derived by use of Kirchoff's diffraction theory in terms of the Lommel functions. Linfoot and Wolf also showed that, in larg ...
Fabrication of concave silicon micro-mirrors
... only forming at the surface within the small central aperture. A curved etch front naturally forms after the top irradiated region is undercut (Fig. 1b), since PSi formation is isotropic for 0.02 Ω.cm p-type wafers [20]. Moreover, such highly doped wafers typically have a low surface roughness of a ...
... only forming at the surface within the small central aperture. A curved etch front naturally forms after the top irradiated region is undercut (Fig. 1b), since PSi formation is isotropic for 0.02 Ω.cm p-type wafers [20]. Moreover, such highly doped wafers typically have a low surface roughness of a ...
B. Gaussian Beam Transformation by a Lens.
... must be aligned with the optical axis of the system and the correct side must face the collimated beam; the side with the greatest curvature usually should face the collimated beam. There are two basic methods for collimation: (a) using an optical flat, and (b) using a mirror and an iris. An optical ...
... must be aligned with the optical axis of the system and the correct side must face the collimated beam; the side with the greatest curvature usually should face the collimated beam. There are two basic methods for collimation: (a) using an optical flat, and (b) using a mirror and an iris. An optical ...
Light Field Microscopy - Stanford Computer Graphics Laboratory
... of the plane vertices) equal to zero (see [Levoy 1996]). This places the uv plane at infinity, which causes the input data to be treated as orthographic. The second and third properties means that microscopes lack parallax-based depth cues. As a result, microscopists are excited when they see our pe ...
... of the plane vertices) equal to zero (see [Levoy 1996]). This places the uv plane at infinity, which causes the input data to be treated as orthographic. The second and third properties means that microscopes lack parallax-based depth cues. As a result, microscopists are excited when they see our pe ...
Microsoft Office PowerPoint 2003 Beta - poster#2
... (ca 7 nm for a 20-mer), and a fluorochrome molecule. The physical dimensions of the fluorochrome we use, Alexa 532, have not been determined but are likely to be on the order of several nm in diameter (Molecular Probes, Inc.). The practical upper limit to probe length is determined by the penetratio ...
... (ca 7 nm for a 20-mer), and a fluorochrome molecule. The physical dimensions of the fluorochrome we use, Alexa 532, have not been determined but are likely to be on the order of several nm in diameter (Molecular Probes, Inc.). The practical upper limit to probe length is determined by the penetratio ...
- Europhysics News
... reconstructed sections was viewed as if along one axis of the section plane, to provide a side view of the spheres. Viewed from this direction, all spheres lie nearly in the same plane (as the sample geometry requires) and the spheres have again circular profiles. The two spheres that were in contac ...
... reconstructed sections was viewed as if along one axis of the section plane, to provide a side view of the spheres. Viewed from this direction, all spheres lie nearly in the same plane (as the sample geometry requires) and the spheres have again circular profiles. The two spheres that were in contac ...
UNIVERSITAT ROVIRA I VIRGILI
... method, a mathematical method that has been already developed in detail in this chapter. These programs have been used for the study of different optical devices, analyzing their design parameters and evaluating the influence of these parameters on the optical response. The performance of these prog ...
... method, a mathematical method that has been already developed in detail in this chapter. These programs have been used for the study of different optical devices, analyzing their design parameters and evaluating the influence of these parameters on the optical response. The performance of these prog ...
Distributed-gain measurements of erbium
... reflection, whereas the other is connected to the fiber under test. The sensitivity of the technique is deternlined by the laser intensity and its intensity noise, whereas the maximum detectable range is given by the laser linewidth. In our experimental setup we used a three electrodes semiconducto ...
... reflection, whereas the other is connected to the fiber under test. The sensitivity of the technique is deternlined by the laser intensity and its intensity noise, whereas the maximum detectable range is given by the laser linewidth. In our experimental setup we used a three electrodes semiconducto ...
Enhanced transmission in near-field imaging of layered plasmonic
... (NSOM), convention dictates that smaller apertures provide better resolution. As aperture diameter decreases, so does the amount of light exiting the aperture. It has since been shown that surface plasmon resonances can be used to increase the transmission through an NSOM aperture [3, 4]. Optical pr ...
... (NSOM), convention dictates that smaller apertures provide better resolution. As aperture diameter decreases, so does the amount of light exiting the aperture. It has since been shown that surface plasmon resonances can be used to increase the transmission through an NSOM aperture [3, 4]. Optical pr ...
Laser Modes
... frequency of light is emitted with a well-defined phase—and spatial coherence—the light is also emitted in a highly parallel beam.) However, the wavelength distribution of laser light is more complicated than you might initially think. Rather than emitting at a single wavelength, the laser instead e ...
... frequency of light is emitted with a well-defined phase—and spatial coherence—the light is also emitted in a highly parallel beam.) However, the wavelength distribution of laser light is more complicated than you might initially think. Rather than emitting at a single wavelength, the laser instead e ...
ppt 3.7MB - Weizmann Institute of Science
... using atomic ensembles & Electromagnetically Induced Transparency Single photon generation and shaping using Raman scattering: experimental progress applications in long-distance quantum communication ...
... using atomic ensembles & Electromagnetically Induced Transparency Single photon generation and shaping using Raman scattering: experimental progress applications in long-distance quantum communication ...
Bright-Field Microscopy
... We are able, by our senses, to know and distinguish things.... if that most instructive of our senses, seeing, were in any man a thousand or a hundred thousand times more acute than it is by the best microscope, things several millions of times less than the smallest object of his sight now would th ...
... We are able, by our senses, to know and distinguish things.... if that most instructive of our senses, seeing, were in any man a thousand or a hundred thousand times more acute than it is by the best microscope, things several millions of times less than the smallest object of his sight now would th ...
A Michelson interferometric technique for measuring refractive index
... mirror M3 and strikes the beam splitter B. The beam splitter is a half-silvered glass plate (silvered on the back side) which reflects half of the light toward mirror M2 and transmits half of the light (but the entire cross section) toward mirror M,. The distance, or path length as it is called, bet ...
... mirror M3 and strikes the beam splitter B. The beam splitter is a half-silvered glass plate (silvered on the back side) which reflects half of the light toward mirror M2 and transmits half of the light (but the entire cross section) toward mirror M,. The distance, or path length as it is called, bet ...
Retroreflector
A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects light back to its source with a minimum of scattering. In a retroreflector an electromagnetic wavefront is reflected back along a vector that is parallel to but opposite in direction from the wave's source. The angle of incidence at which the device or surface reflects light in this way is greater than zero, unlike a planar mirror, which does this only if the mirror is exactly perpendicular to the wave front, having a zero angle of incidence.