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Asphere Metrology
... considering cost, it is often a better option when multiple lenses are being produced. Alignment of the system is extremely important for a CGH test and can induce error into the measurements if not setup properly.6 A CGH can have a 10 week lead-time and may cost more than $10,000. When using a CGH, ...
... considering cost, it is often a better option when multiple lenses are being produced. Alignment of the system is extremely important for a CGH test and can induce error into the measurements if not setup properly.6 A CGH can have a 10 week lead-time and may cost more than $10,000. When using a CGH, ...
Document
... A reflecting surface is one that is highly polished, opaque and coated with special reflective materials. The law of reflection states that the angle of incidence is equal to the angle of reflection. The incident ray is the line AO, the reflected ray is OB and ON is the normal to the reflecting surf ...
... A reflecting surface is one that is highly polished, opaque and coated with special reflective materials. The law of reflection states that the angle of incidence is equal to the angle of reflection. The incident ray is the line AO, the reflected ray is OB and ON is the normal to the reflecting surf ...
mm {0.84 M PASS
... wavelength within an optical spectrum which includes has associated therewith an appropriate optical ?lter. a wide range of both visible and infra-red wavelengths Speci?cally, the ?lter situated at the terminal which can be selected. For instance, AlxGa1_xAS (x=0 to receives long-wavelength optical ...
... wavelength within an optical spectrum which includes has associated therewith an appropriate optical ?lter. a wide range of both visible and infra-red wavelengths Speci?cally, the ?lter situated at the terminal which can be selected. For instance, AlxGa1_xAS (x=0 to receives long-wavelength optical ...
Bandgap-assisted surface-plasmon sensing Arnaud J. Benahmed* and Chih-Ming Ho
... creases. In this type of structure, the size of the gap is intimately related to the contrast between the optical index of the medium n3 and the dielectric that forms the grating nd [13]. The reflectivity maps corresponding to structure (c) present two distinctive features. First, the average refle ...
... creases. In this type of structure, the size of the gap is intimately related to the contrast between the optical index of the medium n3 and the dielectric that forms the grating nd [13]. The reflectivity maps corresponding to structure (c) present two distinctive features. First, the average refle ...
Metamaterials at Optical Frequencies: Fabrication and Measurements
... production volumes that it provides. It may eventually merge with X-ray lithography due to recent developments in X-ray lasers that offer bright coherent light sources at wavelengths such as 13 nm or 15 nm. Electron-beam lithography The original electron-beam (e-beam) writing tools were made by modi ...
... production volumes that it provides. It may eventually merge with X-ray lithography due to recent developments in X-ray lasers that offer bright coherent light sources at wavelengths such as 13 nm or 15 nm. Electron-beam lithography The original electron-beam (e-beam) writing tools were made by modi ...
Aalborg Universitet Near-field electrospinning of dielectric-loaded surface plasmon polariton waveguides
... techniques, such as metal stripes [3–5] and v-grooves [6,7] have already been investigated. The strong lateral confinement can be also achieved by depositing polymer stripes on a metal surface and using them as waveguides [8–11]. Near field investigation of such dielectricloaded SPP waveguides (DLSP ...
... techniques, such as metal stripes [3–5] and v-grooves [6,7] have already been investigated. The strong lateral confinement can be also achieved by depositing polymer stripes on a metal surface and using them as waveguides [8–11]. Near field investigation of such dielectricloaded SPP waveguides (DLSP ...
Optical Properties of Plasmonic Ag/Ni Square Nanostructures
... treatments and invisible cloaks. A whole new range of possibilities, before only known in the worlds of Harry Potter and science fiction novels, have during the last century been envisioned by scientists all around the globe [1]. When light strikes an interface between a metal and a dielectric, the ...
... treatments and invisible cloaks. A whole new range of possibilities, before only known in the worlds of Harry Potter and science fiction novels, have during the last century been envisioned by scientists all around the globe [1]. When light strikes an interface between a metal and a dielectric, the ...
CP1: Investigation into the Feasibility of a Three Axis
... combining of electromagnetic waves in order to obtain information from those waves. It uses the principle of superposition: that the amplitudes of electromagnetic waves add vectorially when interfered. The relative phase of the combined waves dictates whether this superposition leads to constructive ...
... combining of electromagnetic waves in order to obtain information from those waves. It uses the principle of superposition: that the amplitudes of electromagnetic waves add vectorially when interfered. The relative phase of the combined waves dictates whether this superposition leads to constructive ...
lensed fiber
... Single-mode, PM, multimode, double-clad, PCF, POF, IR fibers with/without optical connectors Shape of the fiber end: cone (1). tapered cone (2), wedge(3), angled tip wedge (4), cone with flat top (5), ball (6), ball with large working distance (7), angled ball with large working distance and integra ...
... Single-mode, PM, multimode, double-clad, PCF, POF, IR fibers with/without optical connectors Shape of the fiber end: cone (1). tapered cone (2), wedge(3), angled tip wedge (4), cone with flat top (5), ball (6), ball with large working distance (7), angled ball with large working distance and integra ...
University of Groningen CURVATURE MEASUREMENT
... practice. The measuring devices, called (optical) spherometers (lens surfaces commonly have a spherical shape), all are different types of reflected-light microscopes. Here, a simple spherometrical method is introduced, which can be executed with any standard microscope equipped with an epi-illumina ...
... practice. The measuring devices, called (optical) spherometers (lens surfaces commonly have a spherical shape), all are different types of reflected-light microscopes. Here, a simple spherometrical method is introduced, which can be executed with any standard microscope equipped with an epi-illumina ...
Principles of Interference
... unity, the delay must be limited to a small fraction of the temporal width or coherence time. The visibility falls to approximately zero when the pathlength difference exceeds the coherence length, lc , which measures the maximum path difference for which the fringes are still observable. Or equiv ...
... unity, the delay must be limited to a small fraction of the temporal width or coherence time. The visibility falls to approximately zero when the pathlength difference exceeds the coherence length, lc , which measures the maximum path difference for which the fringes are still observable. Or equiv ...
Resins for Optics
... 1-1. Brief Description of the Refractive Index The refractive index shows the optical density of a material and it is generally represented by “n”. In other words, the refractive index is the resistance under which light passes through a material. A greater resistance results in an increased refract ...
... 1-1. Brief Description of the Refractive Index The refractive index shows the optical density of a material and it is generally represented by “n”. In other words, the refractive index is the resistance under which light passes through a material. A greater resistance results in an increased refract ...
4 Lab 1: Scattering and Reflection of Polarized Light
... interference in all other directions. If the transparent material is ground into powder, then the directions of reflected and refracted waves from each grain become uncorrelated because of their random orientations, and we have what is called diffuse reflection. That is why powdered glass looks whit ...
... interference in all other directions. If the transparent material is ground into powder, then the directions of reflected and refracted waves from each grain become uncorrelated because of their random orientations, and we have what is called diffuse reflection. That is why powdered glass looks whit ...
Tabletop nanometer extreme ultraviolet imaging in an
... ptychography measurements were taken, an independent height map of the sample was obtained using a Digital Instruments Dimension 3100 AFM. The resulting AFM height map is shown in Fig. 3(b), after applying the same flattening method as that used for the CDI reconstruction. The AFM measurement shows ...
... ptychography measurements were taken, an independent height map of the sample was obtained using a Digital Instruments Dimension 3100 AFM. The resulting AFM height map is shown in Fig. 3(b), after applying the same flattening method as that used for the CDI reconstruction. The AFM measurement shows ...
Aalborg Universitet
... effects imply that the reflectivity spectra for vanishingly small gap widths δ would still feature resonant oscillations somewhat similar to those obtained for non-zero gap widths δ, but with significantly damped oscillation amplitudes. Finally, it should be mentioned that the 2D simulations describ ...
... effects imply that the reflectivity spectra for vanishingly small gap widths δ would still feature resonant oscillations somewhat similar to those obtained for non-zero gap widths δ, but with significantly damped oscillation amplitudes. Finally, it should be mentioned that the 2D simulations describ ...
Broad Band Two-Dimensional Manipulation of Surface Plasmons
... interference patters are not distinguishable by the far field fluorescent imaging method). After a polarizer is added in the excitation beam, as indicated by the white arrows, the SPP sources at the horizontal slits are completely turned “off”. The interference patterns inside of the triangle, squar ...
... interference patters are not distinguishable by the far field fluorescent imaging method). After a polarizer is added in the excitation beam, as indicated by the white arrows, the SPP sources at the horizontal slits are completely turned “off”. The interference patterns inside of the triangle, squar ...
Generation of radially and azimuthally polarized light by optical
... tungsten halogen white light source, and the transmitted light is collected by using a 40 × objective (NA = 0.6) on an inverted optical microscope. Although the subwavelength radial periods of the nanoslits exclude the grating effects, the transmitted light beam is slightly divergent due to the Frau ...
... tungsten halogen white light source, and the transmitted light is collected by using a 40 × objective (NA = 0.6) on an inverted optical microscope. Although the subwavelength radial periods of the nanoslits exclude the grating effects, the transmitted light beam is slightly divergent due to the Frau ...
WDM Concepts and Components
... • Only one (DFB or DBR) laser that has grating filter in the lasing cavity • Wavelength is tuned by either changing the temperature of the grating (0.1 nm/OC) • Or by altering the injection current into the passive section (0.006 nm/mA) • The tuning range decreases with the optical output power ...
... • Only one (DFB or DBR) laser that has grating filter in the lasing cavity • Wavelength is tuned by either changing the temperature of the grating (0.1 nm/OC) • Or by altering the injection current into the passive section (0.006 nm/mA) • The tuning range decreases with the optical output power ...
Demonstration of a multiwave coherent holographic beam combiner in a polymeric substrate
... be obtained with multiple-beam interferometry, thus providing a much higher resolution than that achievable with simple two-beam interferometry. For example, one can detect unknown surface displacement D by observing a shift of the fringes with an accuracy limited by 共SNR兲⌬D = 共F兲 / , where is t ...
... be obtained with multiple-beam interferometry, thus providing a much higher resolution than that achievable with simple two-beam interferometry. For example, one can detect unknown surface displacement D by observing a shift of the fringes with an accuracy limited by 共SNR兲⌬D = 共F兲 / , where is t ...