At-wavelength figure metrology of hard x
... hard x-ray microscopy, microdiffraction, and spectromicroscopy using a hard x-ray microprobe have the ability to analyze materials nondestructively with precise spatial information. In these techniques, not only the focusing size of the hard x rays, but also the focusing intensity distribution prope ...
... hard x-ray microscopy, microdiffraction, and spectromicroscopy using a hard x-ray microprobe have the ability to analyze materials nondestructively with precise spatial information. In these techniques, not only the focusing size of the hard x rays, but also the focusing intensity distribution prope ...
Digital holography of total internal reflection
... applications. Phase-shifting digital holography allows the elimination of zero-order and twinimage components even in an on-axis arrangement [5]. Optical scanning holography can generate holographic images of fluorescence [6]. Application of digital holography in microscopy is especially important, ...
... applications. Phase-shifting digital holography allows the elimination of zero-order and twinimage components even in an on-axis arrangement [5]. Optical scanning holography can generate holographic images of fluorescence [6]. Application of digital holography in microscopy is especially important, ...
Advanced optics tutorials
... The on-axis intensity can be very high due to the small area of the beam. Care should be taken in cutting off the beam with a very small aperture. The source distribution would no longer be Gaussian, and the far-field intensity distribution would develop zeros and other non-Gaussian features. Howeve ...
... The on-axis intensity can be very high due to the small area of the beam. Care should be taken in cutting off the beam with a very small aperture. The source distribution would no longer be Gaussian, and the far-field intensity distribution would develop zeros and other non-Gaussian features. Howeve ...
Polarization effects and the calibration of a donut beam axial optical
... where φ is the azimuthal angle and l is an integer representing the topological charge. The result is a helical wave front with a phase singularity at the centre that produces a dark region along the optical axis. A more flexible way to introduce a spiral phase is with a phase-only spatial light mod ...
... where φ is the azimuthal angle and l is an integer representing the topological charge. The result is a helical wave front with a phase singularity at the centre that produces a dark region along the optical axis. A more flexible way to introduce a spiral phase is with a phase-only spatial light mod ...
A Project Report on- *OPTICAL FIBRE CABLE*
... • An optical fiber is a flexible, transparent fiber made of very pure glass (silica) not much wider than a human hair that acts as "light pipe", to transmit light between the two ends of the fiber • Optical fiber typically consists of a transparent core surrounded by a transparent cladding material ...
... • An optical fiber is a flexible, transparent fiber made of very pure glass (silica) not much wider than a human hair that acts as "light pipe", to transmit light between the two ends of the fiber • Optical fiber typically consists of a transparent core surrounded by a transparent cladding material ...
Fabrication of Surface Plasmon Resonators by Nanoskiving Single
... single-crystalline nanowires produced by nanoskiving with those of polycrystalline nanowires, we fabricated polycrystalline nanowires by a three-step process: (i) patterning 5-µmwide gold lines on an epoxy substrate by electron-beam evaporation and a photolithographic lift-off process, (ii) embeddin ...
... single-crystalline nanowires produced by nanoskiving with those of polycrystalline nanowires, we fabricated polycrystalline nanowires by a three-step process: (i) patterning 5-µmwide gold lines on an epoxy substrate by electron-beam evaporation and a photolithographic lift-off process, (ii) embeddin ...
Experimental study of scattering from characterized random surfaces
... detector made it possible to measure the parallel- and orthogonal-polarization components should the sample cause depolarization. A small computer controlled the arm and sample stage so that data could be taken quickly and reproducibly. There were some differences in the apparatus as set up for visi ...
... detector made it possible to measure the parallel- and orthogonal-polarization components should the sample cause depolarization. A small computer controlled the arm and sample stage so that data could be taken quickly and reproducibly. There were some differences in the apparatus as set up for visi ...
Investigation of the presence of rod-shaped bacteria on food surface
... single wavelength [19-22] or multi-spectral methods [2329] rather than directly detecting the source of the contamination. Recently, some researchers have suggested a laser induced fluorescence (LIF) measurement to detect the animal feces on an apple surface [30]; this method was still categorized a ...
... single wavelength [19-22] or multi-spectral methods [2329] rather than directly detecting the source of the contamination. Recently, some researchers have suggested a laser induced fluorescence (LIF) measurement to detect the animal feces on an apple surface [30]; this method was still categorized a ...
peer-review article - NC State University
... composition. The specific reflections are also influenced by the roughness of the irradiated surface, which is therefore an important factor for the appearance of an object (de la Rie 1987). The gloss, as well as the color saturation, is influenced by the roughness (de la Rie 1987). On a rough surfa ...
... composition. The specific reflections are also influenced by the roughness of the irradiated surface, which is therefore an important factor for the appearance of an object (de la Rie 1987). The gloss, as well as the color saturation, is influenced by the roughness (de la Rie 1987). On a rough surfa ...
Theoretical analysis of phase-matched second
... SHG and OPO in the m ⫽ 0 mode are not significantly changed from those of the bulk material given in Refs. 14 –16. However, the phase-matching angles for SHG coupling from the m ⫽ 0 to the m ⫽ 2 mode for a 16-m guide shown in Fig. 2 are significantly different and much more attractive than those of ...
... SHG and OPO in the m ⫽ 0 mode are not significantly changed from those of the bulk material given in Refs. 14 –16. However, the phase-matching angles for SHG coupling from the m ⫽ 0 to the m ⫽ 2 mode for a 16-m guide shown in Fig. 2 are significantly different and much more attractive than those of ...
LABORATORY MANUAL (Modern Physics & General Optics) PL – 402 (2013-2014)
... in which electrons near the top of the Fermi surface in the metal penetrate the potential barrier at the surface and escape. The emitted electrons have a distribution of kinetic energies which is approximately a Maxwell-Boltzmann distribution with a mean energy E0 kBT where T is the cathode temper ...
... in which electrons near the top of the Fermi surface in the metal penetrate the potential barrier at the surface and escape. The emitted electrons have a distribution of kinetic energies which is approximately a Maxwell-Boltzmann distribution with a mean energy E0 kBT where T is the cathode temper ...
Design of a video interface controller for color sequential liquid
... rotates polarization of a linearly polarized light by (Azimuth angle ). In order to consider the wideband half wave plate, we will propose an optical configuration with two biaxial films. In general, the dispersion of the refractive index of the optical components along the wavelength is depende ...
... rotates polarization of a linearly polarized light by (Azimuth angle ). In order to consider the wideband half wave plate, we will propose an optical configuration with two biaxial films. In general, the dispersion of the refractive index of the optical components along the wavelength is depende ...
Research on the Design of an Optical Information Storage Sensing
... main optical path by the dichroic mirror and detected by a photomultiplier tube (PMT). The remaining recording beam is filtered out by the color filter. In this system, two beams are realized in a single main optical path by the use of one laser and one objective lens, which might prove to be a reli ...
... main optical path by the dichroic mirror and detected by a photomultiplier tube (PMT). The remaining recording beam is filtered out by the color filter. In this system, two beams are realized in a single main optical path by the use of one laser and one objective lens, which might prove to be a reli ...
pdf
... with a variable step height (h) from 160 (h1) to 200 nm (h2), and a step width of 250 nm. The pyramids are made of acrylate polymer (AP) (n ≈ 1.49) on poly(ethylene terephthalate) (PET) film (n ≈ 1.57), and their inner surface has an aluminum coating (20 nm, n = 1.09 + i6.79). Prior to fabrication, ...
... with a variable step height (h) from 160 (h1) to 200 nm (h2), and a step width of 250 nm. The pyramids are made of acrylate polymer (AP) (n ≈ 1.49) on poly(ethylene terephthalate) (PET) film (n ≈ 1.57), and their inner surface has an aluminum coating (20 nm, n = 1.09 + i6.79). Prior to fabrication, ...
Fluidic Optics - Whitesides Group
... streams, we can switch between single- and multi-mode waveguiding, adjust the optical path, and tune the coupling efficiency between waveguides. (ii) They are easy to fabricate. Since the dimensions of the waveguiding region (i.e., the liquid core) in the flowing liquid streams are smaller than the ...
... streams, we can switch between single- and multi-mode waveguiding, adjust the optical path, and tune the coupling efficiency between waveguides. (ii) They are easy to fabricate. Since the dimensions of the waveguiding region (i.e., the liquid core) in the flowing liquid streams are smaller than the ...
Physics for Scientists & Geometric Optics
... ! We can treat light waves from far away sources as plane waves whose wave front is traveling in a straight line ...
... ! We can treat light waves from far away sources as plane waves whose wave front is traveling in a straight line ...
Guiding and Confining Light in Void Nanostructure
... simulations, which simultaneously enables fine grids near the slot for maximizing the accuracy, and large domains of simulation for eliminating the influence of boundary conditions. In the simulations, the smallest grid size is one-twentieth of the slot width, and the total domain is 10 µm × 10 µm. ...
... simulations, which simultaneously enables fine grids near the slot for maximizing the accuracy, and large domains of simulation for eliminating the influence of boundary conditions. In the simulations, the smallest grid size is one-twentieth of the slot width, and the total domain is 10 µm × 10 µm. ...
Dispersion Compensation using a Prism-pair
... Within a plane-wave beam, Each ray has the same optical path (and phase) through the prism-pair (see Fig. 3), starting from reference plane R1 to R5 (all the rays have the same wavelength λ). Note that the optical phase is constant across each of the reference planes (dashed black lines), since each ...
... Within a plane-wave beam, Each ray has the same optical path (and phase) through the prism-pair (see Fig. 3), starting from reference plane R1 to R5 (all the rays have the same wavelength λ). Note that the optical phase is constant across each of the reference planes (dashed black lines), since each ...
Structure of Optical Vortices
... traps, in this case a single optical vortex. The same lens also forms images of trapped particles that are relayed to an attached video camera through a dichroic mirror. The SLM can shift the light’s phase to any of 150 distinct levels in the range 0 ≤ ϕ ≤ 2π radians at each 40 µm wide pixel in a 48 ...
... traps, in this case a single optical vortex. The same lens also forms images of trapped particles that are relayed to an attached video camera through a dichroic mirror. The SLM can shift the light’s phase to any of 150 distinct levels in the range 0 ≤ ϕ ≤ 2π radians at each 40 µm wide pixel in a 48 ...
Optical phase measurement emphasized
... through a double slit arrangement. Typically, a laser beam impinging on two narrow slits that are separated by a fraction of a millimeter results in an interference pattern on a screen. In optics laboratory classes, more advanced experiments, such as Michelson interferometer or Fabry-Perot interfero ...
... through a double slit arrangement. Typically, a laser beam impinging on two narrow slits that are separated by a fraction of a millimeter results in an interference pattern on a screen. In optics laboratory classes, more advanced experiments, such as Michelson interferometer or Fabry-Perot interfero ...
Normal-Incidence Photoemission Electron Microscopy (NI
... by the detector, it smears out, and any wave characteristic is lost. Therefore, such background does not influence the periodicity of the photoelectron yield modulation, which is discussed here. The result of the superposition of the near fields of the SPP and the laser can then be discussed as thre ...
... by the detector, it smears out, and any wave characteristic is lost. Therefore, such background does not influence the periodicity of the photoelectron yield modulation, which is discussed here. The result of the superposition of the near fields of the SPP and the laser can then be discussed as thre ...
Optical Fiber Communication
... On the basis of number of modes:on the basis of number of modes of propagation the optical fiber are classified into two types: (i) Single mode fiber (SMF) and (ii) Multi-mode fiber (MMF) • Single-mode fibers – in single mode fiber only one mode can propagate through the fiber. This type of fiber h ...
... On the basis of number of modes:on the basis of number of modes of propagation the optical fiber are classified into two types: (i) Single mode fiber (SMF) and (ii) Multi-mode fiber (MMF) • Single-mode fibers – in single mode fiber only one mode can propagate through the fiber. This type of fiber h ...
Overlay Network Andreas Holmqvist, Alexander Kronstrand Information Coding
... possible in optics since you cannot store light. Today optical buffering is done by delaying light with different techniques, some of them are fiber loops, slowing light using meta-materials, semiconductors and slowing light using photonic crystals.[7] Conversion of communication signals from light ...
... possible in optics since you cannot store light. Today optical buffering is done by delaying light with different techniques, some of them are fiber loops, slowing light using meta-materials, semiconductors and slowing light using photonic crystals.[7] Conversion of communication signals from light ...
485-146 - Wseas.us
... sputtering. The electrodes of specially designed configuration provided a phase discontinuity by application of the external electric field with a specified spatial distribution in the geometry of the transverse electrooptic effect. Two single-mode optical fibers were connected to the front and back ...
... sputtering. The electrodes of specially designed configuration provided a phase discontinuity by application of the external electric field with a specified spatial distribution in the geometry of the transverse electrooptic effect. Two single-mode optical fibers were connected to the front and back ...