Slowing Down the Speed of Light - The Institute of Optics
... Motivation: Maximum Slow-Light Time Delay “Slow light”: group velocities < 10-6 c ! Proposed applications: controllable optical delay lines optical buffers, true time delay for synthetic aperture radar. Key figure of merit: normalized time delay = total time delay / input pulse duration ≈ informati ...
... Motivation: Maximum Slow-Light Time Delay “Slow light”: group velocities < 10-6 c ! Proposed applications: controllable optical delay lines optical buffers, true time delay for synthetic aperture radar. Key figure of merit: normalized time delay = total time delay / input pulse duration ≈ informati ...
(k) and Refractive Index
... but also the angle of incidence and polarization of the incident light. If the incident angle of the light is altered, the internal angles and optical path lengths within each layer will be affected, which also will influence the amount of phase change in the reflected beams. It is convenient to des ...
... but also the angle of incidence and polarization of the incident light. If the incident angle of the light is altered, the internal angles and optical path lengths within each layer will be affected, which also will influence the amount of phase change in the reflected beams. It is convenient to des ...
Probing Gravity with Observations of the Cosmic Microwave Background Sarah Church Stanford University
... Initial power spectrum of scalar modes and tensor modes (arise naturally from quantum fluctuations stretched out by inflation) Matter fluctuations begin to collapse as they enter the horizon Gravity + radiation pressure couple the baryons and the photon background ⇒ oscillations in the photon-baryon ...
... Initial power spectrum of scalar modes and tensor modes (arise naturally from quantum fluctuations stretched out by inflation) Matter fluctuations begin to collapse as they enter the horizon Gravity + radiation pressure couple the baryons and the photon background ⇒ oscillations in the photon-baryon ...
Effect of the refractive index change kinetics of
... the appearance of a larger and larger saturation effect. One can see that the longer the development time (smaller the k in Fig. 3), the larger the difference between the modeled diffraction efficiency and the one predicted by the Kogelnik theory for sinusoidal gratings. Moreover, it is seen that wh ...
... the appearance of a larger and larger saturation effect. One can see that the longer the development time (smaller the k in Fig. 3), the larger the difference between the modeled diffraction efficiency and the one predicted by the Kogelnik theory for sinusoidal gratings. Moreover, it is seen that wh ...
Optics
... *3,000,000 is an approximation of the true value 2,900,000 (just like 300000000 m/s approximates the speed of light 299792458. ...
... *3,000,000 is an approximation of the true value 2,900,000 (just like 300000000 m/s approximates the speed of light 299792458. ...
Electromagnetic forces and torques in nanoparticles irradiated by
... Eq. (4) has been used here to obtain the torque acting on metallic and dielectric whiskers illuminated by a light plane wave, as shown in Fig. 1. In the case of silver particles, the scattering cross section, which is directly obtained from the scattering amplitude, shows a pronounced resonance when ...
... Eq. (4) has been used here to obtain the torque acting on metallic and dielectric whiskers illuminated by a light plane wave, as shown in Fig. 1. In the case of silver particles, the scattering cross section, which is directly obtained from the scattering amplitude, shows a pronounced resonance when ...
Solid State Physics Lectures 7 Waves in a cubic crystal
... Continuum mechanics - revisited To better understand the continuum description of waves, let’s try to solve ...
... Continuum mechanics - revisited To better understand the continuum description of waves, let’s try to solve ...
2004 - thephysicsteacher.ie
... Optical fibres are made of very transparent glass or plastic. The fibres contain at least two layers. Guiding light in an optical fibre depends on how light travels through different media. Light waves are bent, or refracted, as they pass between materials of different refractive index. The amount o ...
... Optical fibres are made of very transparent glass or plastic. The fibres contain at least two layers. Guiding light in an optical fibre depends on how light travels through different media. Light waves are bent, or refracted, as they pass between materials of different refractive index. The amount o ...
Waves Notes - Animated Science
... of materials from which they are made. Our eyes are very complex organs which have specialised cells on the back of the eye to absorb the light. This is what we call the retina. If the wavelength gets shorter or longer you get a different type of wave which has different properties. However, all EM ...
... of materials from which they are made. Our eyes are very complex organs which have specialised cells on the back of the eye to absorb the light. This is what we call the retina. If the wavelength gets shorter or longer you get a different type of wave which has different properties. However, all EM ...
Document
... difference 2nt, where n is the refractive index of the thin film Each reflection from a medium with higher n adds a half wavelength l/2 to the original path The path difference is ...
... difference 2nt, where n is the refractive index of the thin film Each reflection from a medium with higher n adds a half wavelength l/2 to the original path The path difference is ...
Statistical Mechanics
... Student shall be able to formulate a well-defined and physically significant problem within the main areas of nonlinear optics. Describe the photo induced refractive index using the induced polarization and apply the corresponding wave equation to explain transmission of short optical pulses. Differ ...
... Student shall be able to formulate a well-defined and physically significant problem within the main areas of nonlinear optics. Describe the photo induced refractive index using the induced polarization and apply the corresponding wave equation to explain transmission of short optical pulses. Differ ...
may10-94 as a Word 6.0 doc - Lyle School of Engineering
... 2) Some of the multiple choice questions may have more than one correct answer listed. If so, circle all of the correct responses for the question. 3) Please print your name at the bottom of the remaining pages. 4) The last three pages of this exam contain supplementary figures and information that ...
... 2) Some of the multiple choice questions may have more than one correct answer listed. If so, circle all of the correct responses for the question. 3) Please print your name at the bottom of the remaining pages. 4) The last three pages of this exam contain supplementary figures and information that ...
Acousto-Optic Modulators
... Properties and figures of merit M2 for various acousto-optic materials. n is the refractive index, v is the acoustic velocity, and pij is the maximum photoelastic coefficient . (Extracted from I-Cheng Chang, Ch 6, "AcoustoOptic Modulators" in The Handbook of Optics, Vol. V, Ed. M. Bass et al, McGraw ...
... Properties and figures of merit M2 for various acousto-optic materials. n is the refractive index, v is the acoustic velocity, and pij is the maximum photoelastic coefficient . (Extracted from I-Cheng Chang, Ch 6, "AcoustoOptic Modulators" in The Handbook of Optics, Vol. V, Ed. M. Bass et al, McGraw ...
Chapter 8a Wave Optics
... the other edges are held apart by a piece of paper 0.012mm thick. Calculate the spacing of interference fringes under illumination by light of 632nm wavelength at near normal incidence. Solution: let the air thickness e corresponding the mth-order dark fringe and e1 to the (m+1)thorder dark fringe. ...
... the other edges are held apart by a piece of paper 0.012mm thick. Calculate the spacing of interference fringes under illumination by light of 632nm wavelength at near normal incidence. Solution: let the air thickness e corresponding the mth-order dark fringe and e1 to the (m+1)thorder dark fringe. ...
Introduction of Minor Nonlinear Effect Strain Insensitive SMF Fitting
... the field distributions and also their deviations. The effective area depends only on the field distribution, but the MFD depends on both the field distribution and its first deviation. Figure 3 shows a relatively proportional growth in the integration of field distribution and its deviation in the ...
... the field distributions and also their deviations. The effective area depends only on the field distribution, but the MFD depends on both the field distribution and its first deviation. Figure 3 shows a relatively proportional growth in the integration of field distribution and its deviation in the ...
Approximate Theory of Rectangular Optical Waveguides
... weakly guided. There exist large power losses in the wide-angle bends/branches. However, the same structures made of line-defect photonic crystals give little losses because the lights were trapped by the defects of the photonic crystals. Most of the conventional optical waveguide devices can be eas ...
... weakly guided. There exist large power losses in the wide-angle bends/branches. However, the same structures made of line-defect photonic crystals give little losses because the lights were trapped by the defects of the photonic crystals. Most of the conventional optical waveguide devices can be eas ...
Birefringence
Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. These optically anisotropic materials are said to be birefringent (or birefractive). The birefringence is often quantified as the maximum difference between refractive indices exhibited by the material. Crystals with asymmetric crystal structures are often birefringent, as are plastics under mechanical stress.Birefringence is responsible for the phenomenon of double refraction whereby a ray of light, when incident upon a birefringent material, is split by polarization into two rays taking slightly different paths. This effect was first described by the Danish scientist Rasmus Bartholin in 1669, who observed it in calcite, a crystal having one of the strongest birefringences. However it was not until the 19th century that Augustin-Jean Fresnel described the phenomenon in terms of polarization, understanding light as a wave with field components in transverse polarizations (perpendicular to the direction of the wave vector).