L. Koechlin Optical principles of diffraction focusing
... Will be presented in more detail by Paul Deba ...
... Will be presented in more detail by Paul Deba ...
Lecture-12-Optics
... Fresnel (Near-Field) Diffraction The basic idea is to start again with the Huygen’s-Fresnel principle for secondary spherical wave propagation. At any instant, every point on the primary wavefront is envisioned as a continuous emitter of spherical secondary wavelets. However, no reverse wave travel ...
... Fresnel (Near-Field) Diffraction The basic idea is to start again with the Huygen’s-Fresnel principle for secondary spherical wave propagation. At any instant, every point on the primary wavefront is envisioned as a continuous emitter of spherical secondary wavelets. However, no reverse wave travel ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... electromagnetic interference and low cost [1]. Optical control of microwave devices based on the photoconductivity effect. When a semiconductor is illuminated with a photon of the appropriate wavelength,an electron-hole pair is generated in the semiconductor substrate creating a variable load that c ...
... electromagnetic interference and low cost [1]. Optical control of microwave devices based on the photoconductivity effect. When a semiconductor is illuminated with a photon of the appropriate wavelength,an electron-hole pair is generated in the semiconductor substrate creating a variable load that c ...
Heidelberg Retina Tomograph - HRT
... right hand side show the variations of the measured surface height along the horizontal lines superimposed on the topography images. The normal eye shows a regular shape of the cross section through the cup with a low slope on the temporal side and a higher slope nasally. The cross section through t ...
... right hand side show the variations of the measured surface height along the horizontal lines superimposed on the topography images. The normal eye shows a regular shape of the cross section through the cup with a low slope on the temporal side and a higher slope nasally. The cross section through t ...
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G040254-00 - DCC
... • Two sites in the US, Louisiana and Washington Mirror • Michelson interferometers with Fabry-Perot arms Recycling Mirror • Whole optical path enclosed in vacuum Laser/MC • Sensitive to strains around 10-21 6W ...
... • Two sites in the US, Louisiana and Washington Mirror • Michelson interferometers with Fabry-Perot arms Recycling Mirror • Whole optical path enclosed in vacuum Laser/MC • Sensitive to strains around 10-21 6W ...
thesis
... placed onto a bus common with data modulated on different wavelengths, without interference. This optically modulated data can then be routed to an optical receiver, either on the same chip or a different one. While these components have been demonstrated in the past, one of the key challenges in th ...
... placed onto a bus common with data modulated on different wavelengths, without interference. This optically modulated data can then be routed to an optical receiver, either on the same chip or a different one. While these components have been demonstrated in the past, one of the key challenges in th ...
Supernormal vision and high-resolution retinal imaging through
... recting 10% of the error measured by the wave-front sensor. The value of 10% was chosen empirically because it caused well-behaved convergence on a minimum RMS wave-front error. Loops were repeated until the RMS wave-front error could be reduced no further, which usually required 10–20 loops. The im ...
... recting 10% of the error measured by the wave-front sensor. The value of 10% was chosen empirically because it caused well-behaved convergence on a minimum RMS wave-front error. Loops were repeated until the RMS wave-front error could be reduced no further, which usually required 10–20 loops. The im ...
Second Harmonic Generation Technique and its Applications
... of the center of inversion, except in some isolated cases where the SHG was also observed in centrosymmetric materials, such as phthalocyanines [19] and fullerene C60 thin films [20–25] as due to the quadrupolar, magnetic dipolar or combination of both contributions. There exists a large class of ph ...
... of the center of inversion, except in some isolated cases where the SHG was also observed in centrosymmetric materials, such as phthalocyanines [19] and fullerene C60 thin films [20–25] as due to the quadrupolar, magnetic dipolar or combination of both contributions. There exists a large class of ph ...
Observational Astronomy
... Refractors are based on lenses Easy to make, can combine several elements ...
... Refractors are based on lenses Easy to make, can combine several elements ...
Through the Looking Glass
... of the light in vacuum). The refractive index thus directly influences the oscillatory factor containing the phase information. Any physical process that alters the refractive index in a region of a material will, in turn, alter the phase of any light passing through that region. The trick, of cours ...
... of the light in vacuum). The refractive index thus directly influences the oscillatory factor containing the phase information. Any physical process that alters the refractive index in a region of a material will, in turn, alter the phase of any light passing through that region. The trick, of cours ...
Lights, action: optical tweezers
... multiple objects can be held and manipulated by timesharing a single beam [7]. Multiple optical tweezers can be created in this way because viscous drag on the trapped objects is su ciently high to provide positiona l `persistence’ while the laser beam is elsewhere, servicing another object. In pra ...
... multiple objects can be held and manipulated by timesharing a single beam [7]. Multiple optical tweezers can be created in this way because viscous drag on the trapped objects is su ciently high to provide positiona l `persistence’ while the laser beam is elsewhere, servicing another object. In pra ...
Refractive Indices, Order Parameter and Optical Transmittance
... S = 12 h3 cos2 θ − 1i, where θ is angle between optic axis and long molecular axis of a molecule. Macroscopic order parameter (Q) as determined by different properties differs among them and also differs from microscopic order parameter because the effect of the local field is different on different ...
... S = 12 h3 cos2 θ − 1i, where θ is angle between optic axis and long molecular axis of a molecule. Macroscopic order parameter (Q) as determined by different properties differs among them and also differs from microscopic order parameter because the effect of the local field is different on different ...
Fermat`s Principle and the Geometric Mechanics of
... in three-dimensional space leaves the optical length stationary under variations in a family of nearby paths r(s, ε) depending smoothly on a parameter ε. That is, the path r(s) satisfies Z B ...
... in three-dimensional space leaves the optical length stationary under variations in a family of nearby paths r(s, ε) depending smoothly on a parameter ε. That is, the path r(s) satisfies Z B ...
Template BR_Rec_2002.dot
... systems is considered to be a safe application of laser technology. Light output is entirely confined to the core of the interconnected fibre, and does not leak through the cladding or outer sheath. If the pigtail of an active light source is disconnected, damage to the eye is remotely possible unde ...
... systems is considered to be a safe application of laser technology. Light output is entirely confined to the core of the interconnected fibre, and does not leak through the cladding or outer sheath. If the pigtail of an active light source is disconnected, damage to the eye is remotely possible unde ...
An accurate technique to record the angular distribution of
... again by the sample and contributes in backscattering to the backscattering cone. Whether these contributions can be resolved depends on what the limiting factor on the angular resolution of the setup is. If the limiting factor is the size of the illuminated area, these contributions can be resolved ...
... again by the sample and contributes in backscattering to the backscattering cone. Whether these contributions can be resolved depends on what the limiting factor on the angular resolution of the setup is. If the limiting factor is the size of the illuminated area, these contributions can be resolved ...
introductory practical physics ii - National Open University of Nigeria
... In this experiment, you will practically experience refraction through the glass block. To do this, you will trace a ray of light that is incident on one side of the glass block which after passing through the glass block gets on the other side of the glass block. You will then be able to determine ...
... In this experiment, you will practically experience refraction through the glass block. To do this, you will trace a ray of light that is incident on one side of the glass block which after passing through the glass block gets on the other side of the glass block. You will then be able to determine ...