Full-Text PDF
... film on temperature was studied in the range from 25 to 200 °C; the corresponding decrease in the FWHM values of the SPR reflectivity curves at these temperatures was from 0.898°to 0.551°. Our results showed that ZnO thin films fabricated at high RF power and high temperature had a good single-cryst ...
... film on temperature was studied in the range from 25 to 200 °C; the corresponding decrease in the FWHM values of the SPR reflectivity curves at these temperatures was from 0.898°to 0.551°. Our results showed that ZnO thin films fabricated at high RF power and high temperature had a good single-cryst ...
A Low Cost Optical Coherence Tomography Machine
... half of the light directed toward the reference arm and the other half directed to the sample which is to be scanned. The light is reflected back from both the reference arm and the scanning sample and is recorded by a photoreceptor. The data is then translated in a digital signal, processed, displa ...
... half of the light directed toward the reference arm and the other half directed to the sample which is to be scanned. The light is reflected back from both the reference arm and the scanning sample and is recorded by a photoreceptor. The data is then translated in a digital signal, processed, displa ...
A study on optical absorption and constants of doped poly(ethylene
... The optical energy gap and the basic optical constants, refractive index, and dielectric constants of the prepared films have been investigated and showed a clear dependence on the NaI concentration. The interpreted absorption mechanism is a direct electron transition. The observed optical energy gap ...
... The optical energy gap and the basic optical constants, refractive index, and dielectric constants of the prepared films have been investigated and showed a clear dependence on the NaI concentration. The interpreted absorption mechanism is a direct electron transition. The observed optical energy gap ...
Introduction
... concluded that there must be a different kind of light beyond the red portion of the spectrum, which is not visible to the human eye. This kind of light became known as “infrared” (below red) light. Herschel then placed a water-filled container between the prism and thermometer and observed that the ...
... concluded that there must be a different kind of light beyond the red portion of the spectrum, which is not visible to the human eye. This kind of light became known as “infrared” (below red) light. Herschel then placed a water-filled container between the prism and thermometer and observed that the ...
diffraction gratings
... higher orders decreases as the order k increases. *The efficiency also decreases the further off-Littrow (alpha does not equal beta) the grating is used. Holographic gratings may be designed with groove profiles that discriminate against high orders. This may be particularly effective in the VUV usi ...
... higher orders decreases as the order k increases. *The efficiency also decreases the further off-Littrow (alpha does not equal beta) the grating is used. Holographic gratings may be designed with groove profiles that discriminate against high orders. This may be particularly effective in the VUV usi ...
2001 - Institute of Applied Physics - Friedrich-Schiller
... elements for both, optic and optoelectronic devices. A total staff of more than 30 scientists and engineers is presently working in education and R&D. In addition, about 20 diploma and PhD students and visiting scientists are researching at the IAP. Focal point of research is the generation, control ...
... elements for both, optic and optoelectronic devices. A total staff of more than 30 scientists and engineers is presently working in education and R&D. In addition, about 20 diploma and PhD students and visiting scientists are researching at the IAP. Focal point of research is the generation, control ...
15. Atmospheric Channel Effects and the Impact on
... energy to the molecular constituents of the atmosphere. It exhibits a strong dependence on wavelength [2,3]. Atmospheric scattering due to molecular sized particles is called Rayleigh scattering. For objects large compared to the wavelength, Mie scattering occurs. Rayleigh scattering is dominant for ...
... energy to the molecular constituents of the atmosphere. It exhibits a strong dependence on wavelength [2,3]. Atmospheric scattering due to molecular sized particles is called Rayleigh scattering. For objects large compared to the wavelength, Mie scattering occurs. Rayleigh scattering is dominant for ...
Microscopy - Frank`s Hospital Workshop
... made tailored specifically for a chemical compound. For example, one strategy often in use is the artificial production of proteins, based on the genetic code (DNA). These proteins can then be used to immunize rabbits, which then form antibodies which bind to the protein. The antibodies are then cou ...
... made tailored specifically for a chemical compound. For example, one strategy often in use is the artificial production of proteins, based on the genetic code (DNA). These proteins can then be used to immunize rabbits, which then form antibodies which bind to the protein. The antibodies are then cou ...
Disturbance detection in snow using polarimetric imagery of the
... named SALSA. This device implemented a fast switching liquid crystal polarizing filter to separate polarized light onto a 782 x 582 pixel detector operating in the 400 to 700 nanometer range. The data were then analyzed for polarimetric signatures by isolating the disturbances from the background an ...
... named SALSA. This device implemented a fast switching liquid crystal polarizing filter to separate polarized light onto a 782 x 582 pixel detector operating in the 400 to 700 nanometer range. The data were then analyzed for polarimetric signatures by isolating the disturbances from the background an ...
Optical Time Domain Reflectometry (OTDR)
... Additional care has to be taken by using an optical fiber. The striped fiber consists of glass and has sharp edges when it is broken or cleaved. Thus, the fiber ends can easily pass through the skin or other parts of the body. Remaining parts of the fiber after cleaving have to be put in a special c ...
... Additional care has to be taken by using an optical fiber. The striped fiber consists of glass and has sharp edges when it is broken or cleaved. Thus, the fiber ends can easily pass through the skin or other parts of the body. Remaining parts of the fiber after cleaving have to be put in a special c ...
10-draft-EPS-238
... This general case of a coherent plane wave has elliptical polarization with a polarization ellipse (the ellipse swept out by the electric field vector onto a plane perpendicular to the direction of propagation) determined by the relative amplitudes ax and ay and phases εx and εy. Linear and circular ...
... This general case of a coherent plane wave has elliptical polarization with a polarization ellipse (the ellipse swept out by the electric field vector onto a plane perpendicular to the direction of propagation) determined by the relative amplitudes ax and ay and phases εx and εy. Linear and circular ...
WAVE INTERACTIONS WITH ARRAYS OF BOTTOM
... Chan (2005) are then compared to each other to show similarity between them and validate WAMIT's output. However, the formulation of Hu and Chan (2005) seems to be incomplete in describing the behavior of infinitely long, finite width cylinder arrays, as inferred from the Fabry-Pérot interferometer, ...
... Chan (2005) are then compared to each other to show similarity between them and validate WAMIT's output. However, the formulation of Hu and Chan (2005) seems to be incomplete in describing the behavior of infinitely long, finite width cylinder arrays, as inferred from the Fabry-Pérot interferometer, ...
24_(582-588)(완료)E14120 ed-Jin-Kyu Yang.hwp
... such as an InGaN quantum well (QW), and LEE is limited by total internal reflection (TIR) in high index contrast between the semiconductor and surrounding material. Recently, the high IQE of InGaN/GaN blue LEDs was achieved with the help of rapid development of semiconductor growth technology [3, 4] ...
... such as an InGaN quantum well (QW), and LEE is limited by total internal reflection (TIR) in high index contrast between the semiconductor and surrounding material. Recently, the high IQE of InGaN/GaN blue LEDs was achieved with the help of rapid development of semiconductor growth technology [3, 4] ...
Multiply scattered waves through a spatially random medium
... media the of scattering of light from state effect evidenced (both polarization, however the polarization that has been recently memory confirmed experimentally [8] soon afterwards) theoretically [6-7] and that suggests some of polarization incident irretrievably information about the of the beam is ...
... media the of scattering of light from state effect evidenced (both polarization, however the polarization that has been recently memory confirmed experimentally [8] soon afterwards) theoretically [6-7] and that suggests some of polarization incident irretrievably information about the of the beam is ...
Application of Digital Phase-shift Shadow Moiré to Micro
... typically used. The projection grating is placed in front of the light source and the reference grating or camera grating is placed in front of the camera. The projected beam of light is amplitude-modulated with the pitch of the grating. When this beam falls on the object surface, the phase of the s ...
... typically used. The projection grating is placed in front of the light source and the reference grating or camera grating is placed in front of the camera. The projected beam of light is amplitude-modulated with the pitch of the grating. When this beam falls on the object surface, the phase of the s ...
Fabrication of concave silicon micro-mirrors
... Large arrays of cylindrical concave lines and spherical concave mirrors may be fabricated simultaneously using the above mentioned process, as shown in Fig. 2. One of the features of this fabrication technique is that the location of each mirror or cylinder may be precisely controlled, unlike the ra ...
... Large arrays of cylindrical concave lines and spherical concave mirrors may be fabricated simultaneously using the above mentioned process, as shown in Fig. 2. One of the features of this fabrication technique is that the location of each mirror or cylinder may be precisely controlled, unlike the ra ...
FIBER OPTICS
... An optical fiber is a cylindrical dielectric waveguide made of low-loss materials such as silica glass. It has a central core in which the light is guided, embedded in an outer cladding of slightly lower refractive index (Fig. 8.0-l). Light rays incident on the core-cladding boundary at angles grea ...
... An optical fiber is a cylindrical dielectric waveguide made of low-loss materials such as silica glass. It has a central core in which the light is guided, embedded in an outer cladding of slightly lower refractive index (Fig. 8.0-l). Light rays incident on the core-cladding boundary at angles grea ...
Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost. In complex systems such as a telescope, the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer's binoculars or telescopic sight.Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure's performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.