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Paper
... possible designs of HPTs, we have chosen to develop a 3-terminations edge-coupled waveguide device. We will present the HPT design, fabrication, characterization and state of art. 1. Introduction: Transistors can convert optical signals into electrical signals, as the materials they are made of are ...
... possible designs of HPTs, we have chosen to develop a 3-terminations edge-coupled waveguide device. We will present the HPT design, fabrication, characterization and state of art. 1. Introduction: Transistors can convert optical signals into electrical signals, as the materials they are made of are ...
Subpixel Scatter in Digital Micromirror Devices
... large numerical aperture, it had a very limited depth of field (about 14μm). Due to this constraint, it was very important to obtain the best possible focus of the projected spot in the center of the field of view. To focus the spot onto the mirrors, the mirrors were moved to their flat state. An iris ...
... large numerical aperture, it had a very limited depth of field (about 14μm). Due to this constraint, it was very important to obtain the best possible focus of the projected spot in the center of the field of view. To focus the spot onto the mirrors, the mirrors were moved to their flat state. An iris ...
MEMS for micro optics: from fiber optic communication to display
... microns by 400 microns each. The supporting hinges were designed to be short (100 microns long) and thin (1.7 microns wide) with the 30-micron-thick SOI layer to attain mechanical robustness against external vibration as well as low-voltage operation capability. 2.3 MEMS for Optical Computing Differ ...
... microns by 400 microns each. The supporting hinges were designed to be short (100 microns long) and thin (1.7 microns wide) with the 30-micron-thick SOI layer to attain mechanical robustness against external vibration as well as low-voltage operation capability. 2.3 MEMS for Optical Computing Differ ...
Star Testing Your Telescope - Backyard Astronomer`s Guide
... diffraction rings look brighter than in perfect optics. 2. On-Axis Astigmatism If the lens or mirror is ground so that it is not rotationally symmetrical, the result is an extra-focal diffraction disk that might appear elliptical. Its axis flips 90° from one side of focus to the other. In focus, sta ...
... diffraction rings look brighter than in perfect optics. 2. On-Axis Astigmatism If the lens or mirror is ground so that it is not rotationally symmetrical, the result is an extra-focal diffraction disk that might appear elliptical. Its axis flips 90° from one side of focus to the other. In focus, sta ...
Wavefront sensing and reconstruction from
... We propose a wavefront sensor that measures gradient and Laplacian data simultaneously with a single experimental setup (H–S). In addition, we derive the necessary mathematical formulation to reconstruct the wavefront surface from both data types simultaneously, rather than using gradient or Laplaci ...
... We propose a wavefront sensor that measures gradient and Laplacian data simultaneously with a single experimental setup (H–S). In addition, we derive the necessary mathematical formulation to reconstruct the wavefront surface from both data types simultaneously, rather than using gradient or Laplaci ...
Tutorial on Optomechanical Beam Steering Mechanisms
... Throughput We will provide tables with some semi-quantitative comparisons of these parameters at the end of this paper. ...
... Throughput We will provide tables with some semi-quantitative comparisons of these parameters at the end of this paper. ...
PowerPoint - ECSE - Rensselaer Polytechnic Institute
... SIP is a lightweight control-plane protocol for IP telephony compared to H.323 SDP is a protocol used to describe IP telephony call parameters SIP uses a client-server approach to provide one level of name resolution, and also uses DNS to finally locate the IP address to which a call ne ...
... SIP is a lightweight control-plane protocol for IP telephony compared to H.323 SDP is a protocol used to describe IP telephony call parameters SIP uses a client-server approach to provide one level of name resolution, and also uses DNS to finally locate the IP address to which a call ne ...
Siggraph Asia Technical Brief
... The accompanying video has two clips that show the display in action. The first clip shows a truncated pyramid with the camera moving to simulate how a user would view the hologram. This shows that the object floats in space as would be expected with a hologram. The second clip shows an animation of ...
... The accompanying video has two clips that show the display in action. The first clip shows a truncated pyramid with the camera moving to simulate how a user would view the hologram. This shows that the object floats in space as would be expected with a hologram. The second clip shows an animation of ...
Properties of Radiation What`s this?
... • Conservation of energy dictates that the sum of these must be 100% (or 1) • For opaque objects negligible transmission aλ + rλ= 1 and aλ = 1 - rλ • If the object is highly reflective, aλ must be low (e.g., aluminum foil) • aλ and rλ also often depend on the direction of the incident radiat ...
... • Conservation of energy dictates that the sum of these must be 100% (or 1) • For opaque objects negligible transmission aλ + rλ= 1 and aλ = 1 - rλ • If the object is highly reflective, aλ must be low (e.g., aluminum foil) • aλ and rλ also often depend on the direction of the incident radiat ...
Organic Nonlinear Optic Devices
... • Polymer Directional Coupler – J. Kobayashi et al., “Directional Couplers Using Fluorinated Polyimide Waveguides,” Journal of Lightwave Technology, Vol.16, No. 4, pp. 610613, 1998. – T. Gabler et al., “Application of the polyconjugated main chain polymer DPOP-PPV for ultrafast all-optical switching ...
... • Polymer Directional Coupler – J. Kobayashi et al., “Directional Couplers Using Fluorinated Polyimide Waveguides,” Journal of Lightwave Technology, Vol.16, No. 4, pp. 610613, 1998. – T. Gabler et al., “Application of the polyconjugated main chain polymer DPOP-PPV for ultrafast all-optical switching ...
Cloaking at Optical Frequencies - Cornell ECE
... (FDTD) method and show that due to the presence of the cloak, the image of the light incident on the deformation, the region under which an object could be hidden, resembles the image of a wave that is propagating in a homogenous medium without the deformation. Figure 4a shows a simulation of light ...
... (FDTD) method and show that due to the presence of the cloak, the image of the light incident on the deformation, the region under which an object could be hidden, resembles the image of a wave that is propagating in a homogenous medium without the deformation. Figure 4a shows a simulation of light ...
Optical trapping using cascade conical refraction of light
... Conical refraction of light was predicted by Hamilton and demonstrated by Lloyd in one of the earliest theoretical predictions that was followed by an experimental demonstration [1, 2]. In internal conical refraction, a beam of light refracted along one of the optic axes of a slab of biaxial crystal ...
... Conical refraction of light was predicted by Hamilton and demonstrated by Lloyd in one of the earliest theoretical predictions that was followed by an experimental demonstration [1, 2]. In internal conical refraction, a beam of light refracted along one of the optic axes of a slab of biaxial crystal ...
Light and optics
... tanning, but it can also do irreparable damage to us. There is an increase in the amount of UV radiation that is reaching us because the ozone layer in the atmosphere (which protects us from the damaging radiation by absorbing the UV rays) is being thinned. ...
... tanning, but it can also do irreparable damage to us. There is an increase in the amount of UV radiation that is reaching us because the ozone layer in the atmosphere (which protects us from the damaging radiation by absorbing the UV rays) is being thinned. ...
Fiber Optic Sensors and Their Applications
... low coherence length, broad spectral width, low sensitivity to back reflected light and high reliability. They are useful in intensity type of sensors only. LDs on the other hand exhibit high coherence, narrow line width and high optical output power, all of which are essential in interferometric se ...
... low coherence length, broad spectral width, low sensitivity to back reflected light and high reliability. They are useful in intensity type of sensors only. LDs on the other hand exhibit high coherence, narrow line width and high optical output power, all of which are essential in interferometric se ...
Signal-to-Signal-to-Noise-Ratio of Full-Field Fourier
... scatterer is illuminated at an angle α, by a collimated beam from the sample arm optical fiber (single-mode). The collimated beam is scattered by the sample, this scattered light is collected by the lens and directed towards a 2D CCD array. A reference beam is created by placing the distal tip of th ...
... scatterer is illuminated at an angle α, by a collimated beam from the sample arm optical fiber (single-mode). The collimated beam is scattered by the sample, this scattered light is collected by the lens and directed towards a 2D CCD array. A reference beam is created by placing the distal tip of th ...
Extraordinary optical transmission by interference of diffracted
... polarized – 6a and with horizontally polarized light – 6b). These photographs show that formation of these fringes is independent of the state of polarization of incident beam and the intensity ratio for these fringes was also found to be the same, i.e., I/I0 ~ 3.7. These observations on polarizatio ...
... polarized – 6a and with horizontally polarized light – 6b). These photographs show that formation of these fringes is independent of the state of polarization of incident beam and the intensity ratio for these fringes was also found to be the same, i.e., I/I0 ~ 3.7. These observations on polarizatio ...
FOCUSING OF NEUTRONS USING NANOTUBES WITH SURFACE
... In this work the numerical simulation of thermal neutron channeling in the conical and curved nanotubes with large circular surface currents is carried out. The coordinate distribution of neutrons from the impact parameters and the surface current density is obtained. It is demonstrated, that at som ...
... In this work the numerical simulation of thermal neutron channeling in the conical and curved nanotubes with large circular surface currents is carried out. The coordinate distribution of neutrons from the impact parameters and the surface current density is obtained. It is demonstrated, that at som ...
Blind sectional image reconstruction for optical
... the reconstruction of a sectional image, the resulting data must then be postprocessed to obtain sectional content. We propose a blind sectional image reconstruction technique to automate the data processing. This reconstruction uses edge information to determine the appropriate Fresnel zone plates ...
... the reconstruction of a sectional image, the resulting data must then be postprocessed to obtain sectional content. We propose a blind sectional image reconstruction technique to automate the data processing. This reconstruction uses edge information to determine the appropriate Fresnel zone plates ...
lecture23
... You must understand the differences between these two kinds of mirrors, be able to draw ray diagrams for both kinds of mirrors, and be able to solve the mirror equation for both kinds of mirrors. ...
... You must understand the differences between these two kinds of mirrors, be able to draw ray diagrams for both kinds of mirrors, and be able to solve the mirror equation for both kinds of mirrors. ...