2. Ring-laser gyroscopes (RLGs)
... As the laser source is external to the ring, solid-state lasers may be used in place of gas-lasers, considerably reducing the power consumption and voltages required for operation. To provide an area similar to that of Michelson's device (see previous page), using loops enclosing 25 m2 (approx 5.64 ...
... As the laser source is external to the ring, solid-state lasers may be used in place of gas-lasers, considerably reducing the power consumption and voltages required for operation. To provide an area similar to that of Michelson's device (see previous page), using loops enclosing 25 m2 (approx 5.64 ...
Shape from Shading: A Survey - CRCV
... None of the above methods deals with interreflectionsÐthe mutual illumination between surface facets. Nayaret et al. [31], [32] addressed the shape-from-interreflection problem using photometric stereo. They observed that the erroneous shape extracted by shape-from-photometric-stereo algorithms in t ...
... None of the above methods deals with interreflectionsÐthe mutual illumination between surface facets. Nayaret et al. [31], [32] addressed the shape-from-interreflection problem using photometric stereo. They observed that the erroneous shape extracted by shape-from-photometric-stereo algorithms in t ...
15-Gb/s Bit-Interleaved Optical Backplane Bus Using Volume
... central receiver possess fixed time delays according to their relative physical locations, we add a tunable time delay chip (SY100EP196 V, Micrel) with resolution better than 5 ps to ensure the total delay difference to be multiples of 400 ps. Since VCSELs emit light even when sending logic 0s, it i ...
... central receiver possess fixed time delays according to their relative physical locations, we add a tunable time delay chip (SY100EP196 V, Micrel) with resolution better than 5 ps to ensure the total delay difference to be multiples of 400 ps. Since VCSELs emit light even when sending logic 0s, it i ...
measuring
... given by the luminosity function. The eye has different responses as a function of wavelength when it is adapted to light conditions (photopic vision) and dark conditions (scotopic vision). Photometry is based on the eye's photopic response, and so photometric measurements will not accurately indica ...
... given by the luminosity function. The eye has different responses as a function of wavelength when it is adapted to light conditions (photopic vision) and dark conditions (scotopic vision). Photometry is based on the eye's photopic response, and so photometric measurements will not accurately indica ...
Efficient output coupling of intracavity high harmonic generation
... losses than coupling the harmonic radiation out of the cavity through a small hole in a curved mirror. We add an optic directly after the intracavity focus. The element acts as a diffraction grating for all harmonic orders and yet, is a near perfect high-reflector for the 1070 nm fundamental light. ...
... losses than coupling the harmonic radiation out of the cavity through a small hole in a curved mirror. We add an optic directly after the intracavity focus. The element acts as a diffraction grating for all harmonic orders and yet, is a near perfect high-reflector for the 1070 nm fundamental light. ...
Shedding Light on Hybrid Optics: A Tutorial in
... about the same size as the waveguide MFD. The waveguide is then precisely positioned in free space until the endface of the waveguide is at the focal point. Since telecommunications systems deal with MFDs of only 10 µm or less, positioning equipment capable of submicron resolution along all three ax ...
... about the same size as the waveguide MFD. The waveguide is then precisely positioned in free space until the endface of the waveguide is at the focal point. Since telecommunications systems deal with MFDs of only 10 µm or less, positioning equipment capable of submicron resolution along all three ax ...
Technological Education Institute (TEI) of Piraeus
... - The energy differentials concerned reflect the acoustic phonon spectrum rather than the optical phonon spectrum. - In stimulated Brillouin, backscattered radiation couples exactly to an acoustic wave with frequency half that of the incoming light. - Acoustic velocity is induced along the core of t ...
... - The energy differentials concerned reflect the acoustic phonon spectrum rather than the optical phonon spectrum. - In stimulated Brillouin, backscattered radiation couples exactly to an acoustic wave with frequency half that of the incoming light. - Acoustic velocity is induced along the core of t ...
Strong enhancement of light extraction efficiency in GaInAsP 2D
... surface recombination at sidewalls of holes, which degrades the internal efficiency. Another problem is its geometry, which makes a current injection device difficult. The top contact layer and metal electrodes necessary for injection devices will essentially change the expected effects, since the e ...
... surface recombination at sidewalls of holes, which degrades the internal efficiency. Another problem is its geometry, which makes a current injection device difficult. The top contact layer and metal electrodes necessary for injection devices will essentially change the expected effects, since the e ...
Automated classification and recognition of bacterial particles in flow
... varying from 10 to 10000 particles per second. The choice of angle is dictated by the fact that scattered light in the small-angle region is primarily influenced by cell size and refractive index, whereas side scatter intensity is related to the granularity of cellular structures. Obviously, these r ...
... varying from 10 to 10000 particles per second. The choice of angle is dictated by the fact that scattered light in the small-angle region is primarily influenced by cell size and refractive index, whereas side scatter intensity is related to the granularity of cellular structures. Obviously, these r ...
Lecture 3
... interaction with isotropic crystals and passes through at a single velocity. However, when light enters a non-equivalent axis (a), it is refracted into two rays each polarized with the vibration directions oriented at right angles to one another, and traveling at different velocities. This phenomeno ...
... interaction with isotropic crystals and passes through at a single velocity. However, when light enters a non-equivalent axis (a), it is refracted into two rays each polarized with the vibration directions oriented at right angles to one another, and traveling at different velocities. This phenomeno ...
Measuring the Complete Transverse Spatial Mode Spectrum
... exhibit the structure of those for the fractional Fourier transform [22]. The singular cases, arising when s± = 0, can easily be handled too. Integral transforms associated to the unitary operator generated by L̂y (rather than L̂x ) have been formulated and lead to the, so-called, gyrator transform ...
... exhibit the structure of those for the fractional Fourier transform [22]. The singular cases, arising when s± = 0, can easily be handled too. Integral transforms associated to the unitary operator generated by L̂y (rather than L̂x ) have been formulated and lead to the, so-called, gyrator transform ...
Holografie – lasery
... excitation source (e.g., a power supply), and a resonator structure (mirrors or reflective surfaces aligned to reflect some or all of the emitted light back through the gain medium). Beyond these basic similarities, the lasers are all very different in their size, output, beam quality, power consump ...
... excitation source (e.g., a power supply), and a resonator structure (mirrors or reflective surfaces aligned to reflect some or all of the emitted light back through the gain medium). Beyond these basic similarities, the lasers are all very different in their size, output, beam quality, power consump ...
Optical Properties of Silica-Copper Oxide Thin Films Prepared by Spin Coating
... with a solid phase dispersed in a continuous liquid phase. The second step is to convert the solution into a gel. This is done by hydrolysis, by adding a gelling agent or by hydrothermal treatment. In this step the sol is chemically transformed into a gel which means the dispersed and continuous pha ...
... with a solid phase dispersed in a continuous liquid phase. The second step is to convert the solution into a gel. This is done by hydrolysis, by adding a gelling agent or by hydrothermal treatment. In this step the sol is chemically transformed into a gel which means the dispersed and continuous pha ...
High speed train communications system using free space
... the existing optical fibre networks, free from electromagnetic interference and relative safety features [9- 13]. The latter characteristics are widely desirable in many applications (e.g. hospital, hazardous environment, aircraft cabin, etc.) where there is a restriction on the use of RF based syst ...
... the existing optical fibre networks, free from electromagnetic interference and relative safety features [9- 13]. The latter characteristics are widely desirable in many applications (e.g. hospital, hazardous environment, aircraft cabin, etc.) where there is a restriction on the use of RF based syst ...
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.