EXPERIMENT 5 Microwave Michelson Interferometer
... Beamsplitter. Half of the beam goes to the right and half to back. After reflection, the two beams return to the Receiver where they interfere and are detected. ...
... Beamsplitter. Half of the beam goes to the right and half to back. After reflection, the two beams return to the Receiver where they interfere and are detected. ...
FT-IR Glossary - Thermo Fisher Scientific
... Birefringence Optically anisotropic substances are double refracting. In birefringent crystals, light is resolved into two components that are polarized at right angles to each other and that travel at different velocities through the substance. Thus, the crystal exhibits two refractive indices (one ...
... Birefringence Optically anisotropic substances are double refracting. In birefringent crystals, light is resolved into two components that are polarized at right angles to each other and that travel at different velocities through the substance. Thus, the crystal exhibits two refractive indices (one ...
EXPERIMENT 4 Microwave Michelson Interferometer
... Beamsplitter. Half of the beam goes to the right and half to back. After reflection, the two beams return to the Receiver where they interfere and are detected. ...
... Beamsplitter. Half of the beam goes to the right and half to back. After reflection, the two beams return to the Receiver where they interfere and are detected. ...
Tolerancing Optical Systems
... level of workmanship in the part and face it, nobody wants their expensive optics to looks like hell, even if appearance does not impact performance. In most cases surface defects only cause a tiny loss in the system throughput and cause a slight increase in scattered light. In almost all cases, the ...
... level of workmanship in the part and face it, nobody wants their expensive optics to looks like hell, even if appearance does not impact performance. In most cases surface defects only cause a tiny loss in the system throughput and cause a slight increase in scattered light. In almost all cases, the ...
The Equation of Number the Total Internal of Reflection Angles
... close to the axis and at various angles, allowing efficient coupling of light into the fiber .However, this high numerical aperture increases the amount of dispersion as rays at different angles have different path length and therefore take different times to traverse the fiber.In graded – index fib ...
... close to the axis and at various angles, allowing efficient coupling of light into the fiber .However, this high numerical aperture increases the amount of dispersion as rays at different angles have different path length and therefore take different times to traverse the fiber.In graded – index fib ...
Extraordinary optical transmission through subwavelength holes Dye-Zone A. Chen
... Due to the highly damped nature of the SiO2 phonon resonances, the criterion for the existence of the SPPs is not as simple as the oft-quoted 1 = −2 where 1 and 2 are the dielectric functions of the materials on either side of the interface and are real quantities.21 Rather, solutions of the com ...
... Due to the highly damped nature of the SiO2 phonon resonances, the criterion for the existence of the SPPs is not as simple as the oft-quoted 1 = −2 where 1 and 2 are the dielectric functions of the materials on either side of the interface and are real quantities.21 Rather, solutions of the com ...
Dunlap Institute Summer School: Fourier Transform Spectroscopy Lab
... QUESTION 3: Based on what you’ve learned about Fourier transforms, discuss with your group what you expect the fringe envelope to look like in the narrow-line limit of a delta function, such as the laser light source we use in this lab. Then calculate the coherence length of a laser of wavelength 64 ...
... QUESTION 3: Based on what you’ve learned about Fourier transforms, discuss with your group what you expect the fringe envelope to look like in the narrow-line limit of a delta function, such as the laser light source we use in this lab. Then calculate the coherence length of a laser of wavelength 64 ...
Palladium Ultra Thin Layer Profiles Evaluation by Evanescent Light
... the phenomenon of Total Internal Reflection (TIR) [5,6] at interfaces where evanescent waves occur. This technique has the advantage that the far field image does not include external transmitted or reflected light beams. In fact we rely on the “evanescent light extraction power” of the nanoparticle ...
... the phenomenon of Total Internal Reflection (TIR) [5,6] at interfaces where evanescent waves occur. This technique has the advantage that the far field image does not include external transmitted or reflected light beams. In fact we rely on the “evanescent light extraction power” of the nanoparticle ...
Resonant and non-resonant generation and focusing of surface plasmons with circular gratings
... To investigate this concept experimentally, rings with different periods were cut into 150 nm thick silver films. Silver was evaporated onto a quartz plate at a high rate to ensure a surface with minimal roughness. Rings were milled into the metal using an FEI Strata 201 XP focused ion beam (FIB), w ...
... To investigate this concept experimentally, rings with different periods were cut into 150 nm thick silver films. Silver was evaporated onto a quartz plate at a high rate to ensure a surface with minimal roughness. Rings were milled into the metal using an FEI Strata 201 XP focused ion beam (FIB), w ...
Simultaneous Negative Phase and Group Velocity of Light in a
... and the period of light is about 5 femtoseconds at 1500-nm wavelength. (ii) Generally, an additional phase delay can arise due to the interfaces between air/metamaterial and metamaterial/substrate. Thus, the experiments must be accompanied by transmittance/ reflectance spectroscopy and by theory to ...
... and the period of light is about 5 femtoseconds at 1500-nm wavelength. (ii) Generally, an additional phase delay can arise due to the interfaces between air/metamaterial and metamaterial/substrate. Thus, the experiments must be accompanied by transmittance/ reflectance spectroscopy and by theory to ...
2.2 Basic Optical Laws and Definitions
... 2.3 Optical Fiber Modes and Configurations 2.3.2 Rays and Modes ¾ Two methods to theoretically study the propagation characteristics of light in an optical fiber : Ray-tracing approach; Mode Theory (Maxwell’ equations) ¾ Ray-tracing approach provides a good approximation to light acceptance and gui ...
... 2.3 Optical Fiber Modes and Configurations 2.3.2 Rays and Modes ¾ Two methods to theoretically study the propagation characteristics of light in an optical fiber : Ray-tracing approach; Mode Theory (Maxwell’ equations) ¾ Ray-tracing approach provides a good approximation to light acceptance and gui ...
M.H. Lu, C.F. Madigan, and J.C. Sturm, "Experiment and modeling of conversion of substrate-wave-guided modes to surface-emitted light by substrate patterning," Mat. Res. Soc. Symp. Proc. 621, pp. Q3.7.1-Q3.7.6 (2000).
... Figure 4. Distribution of energy into external, substrate and ITO/organic modes as a function of Alq3 thickness. The energy in the external modes is normalized according to measurement. The percentages are calculated from the model. The energy in the substrate and ITO/organic modes is computed from ...
... Figure 4. Distribution of energy into external, substrate and ITO/organic modes as a function of Alq3 thickness. The energy in the external modes is normalized according to measurement. The percentages are calculated from the model. The energy in the substrate and ITO/organic modes is computed from ...
Chapter 11. Photoelasticity. Introduction Sample problems 11
... polarized light incident on a half wave plate with the fast axis making an angle of 450 with the vertical axis. Get the expression of the emerging wavefronts and the type of polarization. Solution to 11-S1 Figure P11.1 shows the scheme of the plane polarized light incident on a quarter wave plate. D ...
... polarized light incident on a half wave plate with the fast axis making an angle of 450 with the vertical axis. Get the expression of the emerging wavefronts and the type of polarization. Solution to 11-S1 Figure P11.1 shows the scheme of the plane polarized light incident on a quarter wave plate. D ...
Microsoft Office PowerPoint 2003 Beta - poster#2
... (ca 7 nm for a 20-mer), and a fluorochrome molecule. The physical dimensions of the fluorochrome we use, Alexa 532, have not been determined but are likely to be on the order of several nm in diameter (Molecular Probes, Inc.). The practical upper limit to probe length is determined by the penetratio ...
... (ca 7 nm for a 20-mer), and a fluorochrome molecule. The physical dimensions of the fluorochrome we use, Alexa 532, have not been determined but are likely to be on the order of several nm in diameter (Molecular Probes, Inc.). The practical upper limit to probe length is determined by the penetratio ...
The optical microscopy with virtual image breaks
... image at 50 nm we need the thin coated metallic layer. We were not able to see the magnified image without such layer. We used thin 20 nm gold films in contrast to superlenses where a weakly dissipating silver layer produces enhancement of evanescent wave7 (note, that such superlenses increase resol ...
... image at 50 nm we need the thin coated metallic layer. We were not able to see the magnified image without such layer. We used thin 20 nm gold films in contrast to superlenses where a weakly dissipating silver layer produces enhancement of evanescent wave7 (note, that such superlenses increase resol ...
Summary - Ridgefield School
... range is destructively reduced in intensity at any particular location on a soap bubble. ...
... range is destructively reduced in intensity at any particular location on a soap bubble. ...
Deep subsurface optical waveguides produced by direct writing with
... 1.45 mm. It can be seen that the mode is elliptical with its long axis oriented along the y-axis. In this case effect of the slit is to produce an excessive stretching of the focal volume along the y-axis, which is larger than the dimension of the focal volume along the propagation axis (z), includi ...
... 1.45 mm. It can be seen that the mode is elliptical with its long axis oriented along the y-axis. In this case effect of the slit is to produce an excessive stretching of the focal volume along the y-axis, which is larger than the dimension of the focal volume along the propagation axis (z), includi ...
Birefringence dispersion in fused silica for DUV lithography
... magnitude of birefringence in the material and for predicting the magnitude of loss in CD contrast. In this paper we report results on how the birefringence in Corning’s HPFS® synthetic silica glass changes at the DUV wavelengths used in lithography systems. An examination of the wavelength dependen ...
... magnitude of birefringence in the material and for predicting the magnitude of loss in CD contrast. In this paper we report results on how the birefringence in Corning’s HPFS® synthetic silica glass changes at the DUV wavelengths used in lithography systems. An examination of the wavelength dependen ...
The retrieval of ozone`s absorption coefficient in the stratosphere
... the input is formed by the beam of photons (photon number N), the refractive index of the medium (n), the absorption and scattering coefficients, the anisotropy factor (g) and the distance (d) or size layer to be analyzed. On the other hand, the output is formed by the diffuse reflectance. The simul ...
... the input is formed by the beam of photons (photon number N), the refractive index of the medium (n), the absorption and scattering coefficients, the anisotropy factor (g) and the distance (d) or size layer to be analyzed. On the other hand, the output is formed by the diffuse reflectance. The simul ...
Influence of a thin metal layer on a beam propagation in
... As it can be noticed in Table 4 in most cases MFD decreases when thickness of a layer and a diameter of the structure increase. In all cases the MFD is insignificantly smaller than the MFD value of a non−deposited structure what is corrected with the theoretical meaning [15,19], an additional layer ...
... As it can be noticed in Table 4 in most cases MFD decreases when thickness of a layer and a diameter of the structure increase. In all cases the MFD is insignificantly smaller than the MFD value of a non−deposited structure what is corrected with the theoretical meaning [15,19], an additional layer ...
role of phase and group velocities in cerenkov radiation and
... emitted radiation is analysed and the essential role of group velocity is evidenced. For possible practical applications, these characteristics are calculated and essential aspects are analysed for some media where Cerenkov radiation could be produced: water, ice, noble gases (liquids and solids) an ...
... emitted radiation is analysed and the essential role of group velocity is evidenced. For possible practical applications, these characteristics are calculated and essential aspects are analysed for some media where Cerenkov radiation could be produced: water, ice, noble gases (liquids and solids) an ...
Optical fiber sensors
... Circulator Definition: a passive three-port device that couple light from Port 1 to 2 and Port 2 to 3 and have high isolation in other directions. ...
... Circulator Definition: a passive three-port device that couple light from Port 1 to 2 and Port 2 to 3 and have high isolation in other directions. ...
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.