Reflection-mode scanning near-field optical microscopy: Influence
... Many advances have been made in the area of scanning near-field optical microscopy ~SNOM! over the past decade.1–3 The principle of this technique is to scan a subwavelength sized light source above a sample at a height of a few nm. By collecting the light transmitted through the sample or reflected ...
... Many advances have been made in the area of scanning near-field optical microscopy ~SNOM! over the past decade.1–3 The principle of this technique is to scan a subwavelength sized light source above a sample at a height of a few nm. By collecting the light transmitted through the sample or reflected ...
setting up of a total internal reflection fluorescent microscope
... illumination artifacts because inhomogeneities will convert some of the evanescent field into scattered propagating light (Fig. 5). The laser light was coupled to the optical path of the microscope directly via beam slider which introduced the laser light into the rear port of the microscope, normal ...
... illumination artifacts because inhomogeneities will convert some of the evanescent field into scattered propagating light (Fig. 5). The laser light was coupled to the optical path of the microscope directly via beam slider which introduced the laser light into the rear port of the microscope, normal ...
Basics in Confocal Microscopy Handouts
... In Total Internal Reflection (TIRF) microscopy light is coupled into the optics above a critical angle which reflects the light totally but creates an evanescent wave about 50-200 nm next to the reflecting surface (cover slip). ...
... In Total Internal Reflection (TIRF) microscopy light is coupled into the optics above a critical angle which reflects the light totally but creates an evanescent wave about 50-200 nm next to the reflecting surface (cover slip). ...
offr-ee230
... Quality factor: Sharpness of the resonance. Ratio of the operation wavelength and the resonant line width. Stored energy divided by the power lost per optical cycle. (typically: 104 – 109) ...
... Quality factor: Sharpness of the resonance. Ratio of the operation wavelength and the resonant line width. Stored energy divided by the power lost per optical cycle. (typically: 104 – 109) ...
exam solutions
... (e) In specular reflection, the reflected intensity in the direction where θin = θout is larger than in diffuse reflection. (f) Light rays follow orthogonal trajectories to their associated wavefronts in all isotropic media. (g) A group of rays forms a Normal Congruence if all these rays intersect a ...
... (e) In specular reflection, the reflected intensity in the direction where θin = θout is larger than in diffuse reflection. (f) Light rays follow orthogonal trajectories to their associated wavefronts in all isotropic media. (g) A group of rays forms a Normal Congruence if all these rays intersect a ...
Measurement of Surface Quality 1. Lyot Test 2. FECO 3. Nomarski
... The path difference between the two beams can be adjusted by laterally translating the Wollaston prism. When the axes of the polarizer and analyzer are parallel and the prism is centered, the path lengths are equal and white light is seen for a perfect test surface with no tilt. When the polarizer a ...
... The path difference between the two beams can be adjusted by laterally translating the Wollaston prism. When the axes of the polarizer and analyzer are parallel and the prism is centered, the path lengths are equal and white light is seen for a perfect test surface with no tilt. When the polarizer a ...
Shaped End Fibers
... Ball Lensed Fibers LaseOptics Ball Lens Fibers are rapidly becoming the method of choice ...
... Ball Lensed Fibers LaseOptics Ball Lens Fibers are rapidly becoming the method of choice ...
Presentation
... • Material loss, Metal loading loss, Substrate loss • Channel wall-roughness loss, Epi/substrate interface loss • The loss that occurs when the index difference is not large enough to confine the NA of the input beam completely or when the proportions of rib do not produce good mode confinement • Th ...
... • Material loss, Metal loading loss, Substrate loss • Channel wall-roughness loss, Epi/substrate interface loss • The loss that occurs when the index difference is not large enough to confine the NA of the input beam completely or when the proportions of rib do not produce good mode confinement • Th ...
Chapter 35 Light: Reflection and Refraction
... It is natural to treat the propagation of light in terms of rays. A ray is equivalent to a very narrow beam of light, and it indicates the path along which the energy of the wave travels. Geometrical optics is the study of the behavior of straightline rays at the interference between two media by th ...
... It is natural to treat the propagation of light in terms of rays. A ray is equivalent to a very narrow beam of light, and it indicates the path along which the energy of the wave travels. Geometrical optics is the study of the behavior of straightline rays at the interference between two media by th ...
Optical Fiber Communication
... Germanium or Phosphorus to increase the index of refraction. Boron or Flourine to decrease the index of refraction. Silica fibers mainly used due to their low intrinsic absorption at wavelengths of operation. Any other remaining impurities cause attenuation and scattering. ...
... Germanium or Phosphorus to increase the index of refraction. Boron or Flourine to decrease the index of refraction. Silica fibers mainly used due to their low intrinsic absorption at wavelengths of operation. Any other remaining impurities cause attenuation and scattering. ...
James Powenski - Optical Computing
... GaAs is most widely used because this material can make modulators,lasers,switches and detectors. Hybrid LiNbO3, best for waveguides, modulators and switches. Silicon based n easy ...
... GaAs is most widely used because this material can make modulators,lasers,switches and detectors. Hybrid LiNbO3, best for waveguides, modulators and switches. Silicon based n easy ...
Fibre Optics Material Choice?
... Germanium or Phosphorus to increase the index of refraction. Boron or Flourine to decrease the index of refraction. Silica fibers mainly used due to their low intrinsic absorption at wavelengths of operation. Any other remaining impurities cause attenuation and scattering. ...
... Germanium or Phosphorus to increase the index of refraction. Boron or Flourine to decrease the index of refraction. Silica fibers mainly used due to their low intrinsic absorption at wavelengths of operation. Any other remaining impurities cause attenuation and scattering. ...
Compact Beam Steering
... When a prism pair is oriented as shown in (a), they both refract light in the same direction and act as a single prism with twice the prism angle of either. In (b), each prism has been rotated about the optical axis by the same angle, but in opposite directions. In this case the beam remains close t ...
... When a prism pair is oriented as shown in (a), they both refract light in the same direction and act as a single prism with twice the prism angle of either. In (b), each prism has been rotated about the optical axis by the same angle, but in opposite directions. In this case the beam remains close t ...
Fiber Optics: Fiber Optic Communications
... one optical carrier (wavelength) on a single fiber. Therefore, adding a second transmitter and receiver to an optical fiber can double the bandwidth of that communications system. This method of increasing the capacity of an optical system has appeal for a variety of reasons. If a system were to inc ...
... one optical carrier (wavelength) on a single fiber. Therefore, adding a second transmitter and receiver to an optical fiber can double the bandwidth of that communications system. This method of increasing the capacity of an optical system has appeal for a variety of reasons. If a system were to inc ...
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 ...
