Far-field optical microscope with nanometer-scale
... microscope is limited by the wavelength of visible light. The reason for the limited resolution is diffraction and, ultimately, the uncertainty principle: a wave can not be localized much tighter than half of its vacuum wavelength λ/2. Immersion microscopes ...
... microscope is limited by the wavelength of visible light. The reason for the limited resolution is diffraction and, ultimately, the uncertainty principle: a wave can not be localized much tighter than half of its vacuum wavelength λ/2. Immersion microscopes ...
Resonant-Cavity Light-Emitting Diodes: a review
... High radiance, modulation capabilities, spectral purity and efficiency are no longer exclusively attributed to lasers. Since the invention and first demonstration1 in 1992 of the Resonant-Cavity LED (RCLED) which uses photon quantisation in microcavities to enhance spontaneous emission properties, d ...
... High radiance, modulation capabilities, spectral purity and efficiency are no longer exclusively attributed to lasers. Since the invention and first demonstration1 in 1992 of the Resonant-Cavity LED (RCLED) which uses photon quantisation in microcavities to enhance spontaneous emission properties, d ...
Kerala University Optoelectronics Optical Communication
... OPE- 622 Optical Fiber Communication Systems Module I Classification of light wave systems, need for fiber based and all-optical systems. Impairments in fibers, dispersion types material (group velocity dispersion – GVD ), modal, wave guide and polarization mode dispersions(PMD). Attenuation : bend ...
... OPE- 622 Optical Fiber Communication Systems Module I Classification of light wave systems, need for fiber based and all-optical systems. Impairments in fibers, dispersion types material (group velocity dispersion – GVD ), modal, wave guide and polarization mode dispersions(PMD). Attenuation : bend ...
TEP 2.6.11-00 Fourier optics – 2f Arrangement TEP 2.6.11
... In the following, the pairs of numbers in brackets refer to the coordinates on the optical base plate in accordance with Fig. 1. These coordinates are intended to help with coarse adjustment. The recommended set-up height (beam path height) is about 130 mm. ...
... In the following, the pairs of numbers in brackets refer to the coordinates on the optical base plate in accordance with Fig. 1. These coordinates are intended to help with coarse adjustment. The recommended set-up height (beam path height) is about 130 mm. ...
Excitation wavelength dependence of the anomalous circular
... In the experiment, the ACPGE currents are measured as a function of the spot location at different wavelengths (near the transitions of 1hh-1e (905 nm) and 1lh-1e (955 nm)). It is worth noting that the current corresponding to 1lh-1e is actually contributed by not only the 1lh-1e transition but also ...
... In the experiment, the ACPGE currents are measured as a function of the spot location at different wavelengths (near the transitions of 1hh-1e (905 nm) and 1lh-1e (955 nm)). It is worth noting that the current corresponding to 1lh-1e is actually contributed by not only the 1lh-1e transition but also ...
Investigations on the Theory of the Transverse Doppler Effect
... because they are generally not the same, according to equation (2). In our assuming, because the light source is at rest in K, α is the proper angle generated by the stationary light source and α0 is the apparent angle generated by the moving light source. Thus, to measure α of the stationary light ...
... because they are generally not the same, according to equation (2). In our assuming, because the light source is at rest in K, α is the proper angle generated by the stationary light source and α0 is the apparent angle generated by the moving light source. Thus, to measure α of the stationary light ...
lab 1 GEO Optics
... Your group needs to focus an optical apparatus at known positions within the protein solution in order to record an image of a small part of the volume. For every point in an image, you must be able to specify the location of the corresponding point in the protein solution. To accomplish this, you m ...
... Your group needs to focus an optical apparatus at known positions within the protein solution in order to record an image of a small part of the volume. For every point in an image, you must be able to specify the location of the corresponding point in the protein solution. To accomplish this, you m ...
13 - Atomic Physics
... The setup in figure 3.2 can be improved by inserting a half wave plate between the two nonlinear crystals. The plate should be chosen so that it is a half wave plate for the fundamental. This can then be used to rotate the polarization of the fundamental to any desired angle. The wavelength of the s ...
... The setup in figure 3.2 can be improved by inserting a half wave plate between the two nonlinear crystals. The plate should be chosen so that it is a half wave plate for the fundamental. This can then be used to rotate the polarization of the fundamental to any desired angle. The wavelength of the s ...
About the reduction of reflections for camera lenses How T
... The point spread function (PSF) of a lens .................................................................................. 2 Comparison of images - coated vs. uncoated lenses................................................................ 10 Contrast range of a scene and dynamic range of image tak ...
... The point spread function (PSF) of a lens .................................................................................. 2 Comparison of images - coated vs. uncoated lenses................................................................ 10 Contrast range of a scene and dynamic range of image tak ...
optical properties of skin, subcutaneous, and muscle tissues
... In principle, the method allows for any intended accuracy to be achieved for all the parameters being measured, provided the necessary computer time is available. An error of 3% or less is considered acceptable.30 Also, the method may be used to directly correct experimental ¯ndings obtained with th ...
... In principle, the method allows for any intended accuracy to be achieved for all the parameters being measured, provided the necessary computer time is available. An error of 3% or less is considered acceptable.30 Also, the method may be used to directly correct experimental ¯ndings obtained with th ...
Plasmon-Induced Transparency in Metamaterials *
... optical metamaterial consisting of coupled nanoscale plasmonic resonators. The plasmonic metamaterial has welldefined EIT-like effective properties and opens up the possibilities to construct devices of various scales and shapes while maintaining consistent optical properties that do not depend on t ...
... optical metamaterial consisting of coupled nanoscale plasmonic resonators. The plasmonic metamaterial has welldefined EIT-like effective properties and opens up the possibilities to construct devices of various scales and shapes while maintaining consistent optical properties that do not depend on t ...
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.