Measuring amplitude and phase of light emerging from
... as CCD images in the top row of Fig. 6. The immersion-HRIM provides a sufficient axial resolution to verify the Talbot length of 4.7 μm approximated by Eq. (1). Figures 6(a) and 6(b) show the influence of varying the numerical aperture for the 1-Pm-period grating. Again one finds the enhanced resolu ...
... as CCD images in the top row of Fig. 6. The immersion-HRIM provides a sufficient axial resolution to verify the Talbot length of 4.7 μm approximated by Eq. (1). Figures 6(a) and 6(b) show the influence of varying the numerical aperture for the 1-Pm-period grating. Again one finds the enhanced resolu ...
Electron beam lithography designed silver nano
... PSPR and LSPR sensors both rely on detecting small changes in refractive index in the vicinity of a noble metal’s surface. Their sensitivities are caused by different mechanisms, but their overall sensitivities are approximately equivalent. PSPR sensors exhibit large refractive index sensitivities ( ...
... PSPR and LSPR sensors both rely on detecting small changes in refractive index in the vicinity of a noble metal’s surface. Their sensitivities are caused by different mechanisms, but their overall sensitivities are approximately equivalent. PSPR sensors exhibit large refractive index sensitivities ( ...
Suppression of optical damage at 532 nm in
... 2. Materials and optical measurements A series of Ho:cLN crystals were grown with the Czochralski technique with Ho2O3 concentration ranging from 0.0047 to 0.94 mol. % (0.0094-1.88 mol. % Ho3+) in the melt. Here we define the Ho2O3 mol. % as the ratio of [Ho2O3]/([Ho2O3] + [cLiNbO3]). Further detail ...
... 2. Materials and optical measurements A series of Ho:cLN crystals were grown with the Czochralski technique with Ho2O3 concentration ranging from 0.0047 to 0.94 mol. % (0.0094-1.88 mol. % Ho3+) in the melt. Here we define the Ho2O3 mol. % as the ratio of [Ho2O3]/([Ho2O3] + [cLiNbO3]). Further detail ...
Tutor 4
... In the last issue, we described how defocus affects the formation of an image. This information, combined with the basic imaging theory introduced in the first two parts of this series, has given us a fairly clear picture of how lithographic imaging systems work. We are now in a position to make a l ...
... In the last issue, we described how defocus affects the formation of an image. This information, combined with the basic imaging theory introduced in the first two parts of this series, has given us a fairly clear picture of how lithographic imaging systems work. We are now in a position to make a l ...
Acousto-Optic Effect and Its use in Signal Processing Abstract 1
... described by terms such as isotropic and anisotropic. While these all share the basic principles of momentum and energy conservation, these different modes of operation have very different performances. In general, acousto-optic effects are based on the change of the refractive index of a medium due ...
... described by terms such as isotropic and anisotropic. While these all share the basic principles of momentum and energy conservation, these different modes of operation have very different performances. In general, acousto-optic effects are based on the change of the refractive index of a medium due ...
Sodium: A Charge-Transfer Insulator at High Pressures
... middle). Moreover, at low pressures another smaller plasmonic structure appears only in the in-plane direction at about 8 eV, which is strongly suppressed by increasing the applied pressure (see Ref. [15], Fig. 7). Both the anisotropy in the lattice structure and the higher-energy localization of th ...
... middle). Moreover, at low pressures another smaller plasmonic structure appears only in the in-plane direction at about 8 eV, which is strongly suppressed by increasing the applied pressure (see Ref. [15], Fig. 7). Both the anisotropy in the lattice structure and the higher-energy localization of th ...
Title: Optical and NEar IR Interferometric or
... m above the primary. The secondary is undersized to be the pupil, determining an effective telescope aperture of 8.25 m. The actuator spacing will be between 25 and 30 mm, corresponding to 25 to 30 cm on the wave front, as required for use as single corrector during initial phases and for other foca ...
... m above the primary. The secondary is undersized to be the pupil, determining an effective telescope aperture of 8.25 m. The actuator spacing will be between 25 and 30 mm, corresponding to 25 to 30 cm on the wave front, as required for use as single corrector during initial phases and for other foca ...
Holografie – lasery
... (green) and 488 nm (blue). The krypton laser produces is known for its red (647 nm) and yellow (568 nm). The two gases can be combined to produce a laser with quasi-white all-lines output. Air-cooled ion lasers can be operated either multiline (with several wavelengths operating simultaneously), or ...
... (green) and 488 nm (blue). The krypton laser produces is known for its red (647 nm) and yellow (568 nm). The two gases can be combined to produce a laser with quasi-white all-lines output. Air-cooled ion lasers can be operated either multiline (with several wavelengths operating simultaneously), or ...
High-Speed Interferometric Detection of Label-Free Immunoassays on the Biological Compact Disc Ming Zhao,
... signal) is referenced. Very small changes in protein density are measurable because of the differential aspect of the interferometry, making ⬃50 000 difference measurements per second between protein and land as the disc spins. The high sampling rate and differential measurements allow detection of ...
... signal) is referenced. Very small changes in protein density are measurable because of the differential aspect of the interferometry, making ⬃50 000 difference measurements per second between protein and land as the disc spins. The high sampling rate and differential measurements allow detection of ...
Interferometry
Interferometry is a family of techniques in which waves, usually electromagnetic, are superimposed in order to extract information about the waves. Interferometry is an important investigative technique in the fields of astronomy, fiber optics, engineering metrology, optical metrology, oceanography, seismology, spectroscopy (and its applications to chemistry), quantum mechanics, nuclear and particle physics, plasma physics, remote sensing, biomolecular interactions, surface profiling, microfluidics, mechanical stress/strain measurement, and velocimetry.Interferometers are widely used in science and industry for the measurement of small displacements, refractive index changes and surface irregularities. In analytical science, interferometers are used in continuous wave Fourier transform spectroscopy to analyze light containing features of absorption or emission associated with a substance or mixture. An astronomical interferometer consists of two or more separate telescopes that combine their signals, offering a resolution equivalent to that of a telescope of diameter equal to the largest separation between its individual elements.