The Physics 431 Final Exam Wed, DECEMBER 15, 2010
... the solid angle of rays passing through the system from an on-axis object point. The aperture stop limits the brightness of an image. The entrance pupil of a system is the image of the aperture stop as seen from an axial point on the object through those elements preceding the stop. (Hecht p. 171) T ...
... the solid angle of rays passing through the system from an on-axis object point. The aperture stop limits the brightness of an image. The entrance pupil of a system is the image of the aperture stop as seen from an axial point on the object through those elements preceding the stop. (Hecht p. 171) T ...
Multi-Colour and Tunable-Colour Pyroelectric Detectors
... detectors are a beam splitter and a Fabry-perot filter respectively. The beam splitter are micromachined plates with pyramids or V-grooves with a pitch of 100…150 µm to ensure a homogeneous distribution of the radiation flux. Narrow bandpass filters are arranged at a filter cage forming a four sided ...
... detectors are a beam splitter and a Fabry-perot filter respectively. The beam splitter are micromachined plates with pyramids or V-grooves with a pitch of 100…150 µm to ensure a homogeneous distribution of the radiation flux. Narrow bandpass filters are arranged at a filter cage forming a four sided ...
Synthesis of highly focused fields with circular
... requirements of a specific problem [10]. Interestingly, several authors described inverse methods to find the pupil function from a predetermined field distribution in the focal area [11, 12]. Light shaping can be accomplished by using an optical setup able to generate beams with arbitrary polariza ...
... requirements of a specific problem [10]. Interestingly, several authors described inverse methods to find the pupil function from a predetermined field distribution in the focal area [11, 12]. Light shaping can be accomplished by using an optical setup able to generate beams with arbitrary polariza ...
3D–2D–3D photonic crystal heterostructures fabricated by direct
... easily characterized by electron microscopy, but they can be characterized by optical spectroscopy. It is clear that for incidence of light normal to the 2D plane, the structure is just a Fabry–Perot cavity. The corresponding spectra can then be directly compared with spectra obtained from (numerica ...
... easily characterized by electron microscopy, but they can be characterized by optical spectroscopy. It is clear that for incidence of light normal to the 2D plane, the structure is just a Fabry–Perot cavity. The corresponding spectra can then be directly compared with spectra obtained from (numerica ...
feature articles
... pore-occupying, disordered solvent molecules (sometimes resulting in refined structures with residual values larger than those typically reported for molecular crystals), or difficulties associated with the growing of good diffraction-quality crystals. In addition, new techniques are being developed ...
... pore-occupying, disordered solvent molecules (sometimes resulting in refined structures with residual values larger than those typically reported for molecular crystals), or difficulties associated with the growing of good diffraction-quality crystals. In addition, new techniques are being developed ...
Untitled - X-Ray and Neutron Science
... the order of 10−10 m. High frequency X-ray photons penetrate most materials and interact with electrons, which allows them to unveil the previously unreachable atomic structures of the study materials. On the other hand, there is a distinct biological hazard originating from the careless use of X-ra ...
... the order of 10−10 m. High frequency X-ray photons penetrate most materials and interact with electrons, which allows them to unveil the previously unreachable atomic structures of the study materials. On the other hand, there is a distinct biological hazard originating from the careless use of X-ra ...
pdf
... by self-assembly methods are prone to defects; therefore, the mass production of uniform, defect-free, large-area 3D photonic structures, in particular with narrowband diffraction in the visible spectrum is limited.[8] For example, producing highquality monodisperse, highly-charged polystyrene parti ...
... by self-assembly methods are prone to defects; therefore, the mass production of uniform, defect-free, large-area 3D photonic structures, in particular with narrowband diffraction in the visible spectrum is limited.[8] For example, producing highquality monodisperse, highly-charged polystyrene parti ...
Effects of atmospheric turbulence on remote optimal control
... for actual atmospheric propagation 共⬍6 % 兲 does not constitute an overwhelming limitation but it is a factor to take into account to design robust remote control applications. A partial compensation to the effects of turbulence can be achieved by adopting control strategies based on multiplephoton i ...
... for actual atmospheric propagation 共⬍6 % 兲 does not constitute an overwhelming limitation but it is a factor to take into account to design robust remote control applications. A partial compensation to the effects of turbulence can be achieved by adopting control strategies based on multiplephoton i ...
Real-Time Multicolor DNA Detection with Chemoresponsive
... selectivity can be engendered in the readout step by coupling uptake to an analyte-specific color change, either of the analyte itself or of the grating. For example, chloroform can be readout preferentially by ca. 3500-fold relative to methanol when these are taken up by a nonchemically selective g ...
... selectivity can be engendered in the readout step by coupling uptake to an analyte-specific color change, either of the analyte itself or of the grating. For example, chloroform can be readout preferentially by ca. 3500-fold relative to methanol when these are taken up by a nonchemically selective g ...
Effect of the refractive index change kinetics of
... Phase photosensitive materials are those with the ability to locally change their refractive index when they are exposed to photoactinic radiation. Several types of such materials were developed over the past few decades. Not to produce a survey of phase photosensitive materials, one can cite exampl ...
... Phase photosensitive materials are those with the ability to locally change their refractive index when they are exposed to photoactinic radiation. Several types of such materials were developed over the past few decades. Not to produce a survey of phase photosensitive materials, one can cite exampl ...
Upgrading the input optics for HP operation_April2006 - EGO
... For the KTP, KTA, and RTP absorption coefficients, the largest value is for electric field along z, as that is the direction of highest dc conductivity and RF loss tangent. ...
... For the KTP, KTA, and RTP absorption coefficients, the largest value is for electric field along z, as that is the direction of highest dc conductivity and RF loss tangent. ...
Collimation Tester - Newport Corporation
... Place the collimation tester (model no. 20QS20) in an optics mount or any 2 inch holder with sufficient clear aperture. ...
... Place the collimation tester (model no. 20QS20) in an optics mount or any 2 inch holder with sufficient clear aperture. ...
Comparison of simplified theories in the analysis of the diffraction
... different normalized grating periods: 2, 5 and 8 respectively. As can be seen in these graphs, the RCWA and FDTD methods provide similar results in all cases. However, the accuracy of the scalar treatment degrades as the depth increases. More specifically, the validity of the zero order SDT predicti ...
... different normalized grating periods: 2, 5 and 8 respectively. As can be seen in these graphs, the RCWA and FDTD methods provide similar results in all cases. However, the accuracy of the scalar treatment degrades as the depth increases. More specifically, the validity of the zero order SDT predicti ...
The orbital angular momentum of light
... have good classical reasons to believe that the quantum states corresponding to the LG modes form a complete and orthogonal basis set [3]. In other words, the orbital angular momentum state of any photon can be written as a linear combination of LG states and none of the LG states themselves can be ...
... have good classical reasons to believe that the quantum states corresponding to the LG modes form a complete and orthogonal basis set [3]. In other words, the orbital angular momentum state of any photon can be written as a linear combination of LG states and none of the LG states themselves can be ...
Accelerating Light Beams along Arbitrary Convex
... generate a family of beams that follow the trajectories x ¼ an zn , with n ¼ 1:5, 2, 3, 4, 5. The constants an are chosen such that this family of beams will intersect at z ¼ 150 cm. Evidently, the beams accelerate along their predesigned curves, and are clearly discernable from one another, demonst ...
... generate a family of beams that follow the trajectories x ¼ an zn , with n ¼ 1:5, 2, 3, 4, 5. The constants an are chosen such that this family of beams will intersect at z ¼ 150 cm. Evidently, the beams accelerate along their predesigned curves, and are clearly discernable from one another, demonst ...
Demonstration of a linear optical true
... pass whether to create one unit of delay by passing to the long arm or to create no delay by passing to the short arm. Note that to meet the imaging requirements, the long arm requires a lens with a different focal length than the other two arms. For this reason, we use a separate lens for each arm ...
... pass whether to create one unit of delay by passing to the long arm or to create no delay by passing to the short arm. Note that to meet the imaging requirements, the long arm requires a lens with a different focal length than the other two arms. For this reason, we use a separate lens for each arm ...
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... experimental evidence that such induced incoherent MI depends strongly on the perturbation period 共or spatial frequency兲, apart from its dependence on the coherence of the beam and the strength of the nonlinearity. In a way very different from previous experiments on incoherent MI, which was driven ...
... experimental evidence that such induced incoherent MI depends strongly on the perturbation period 共or spatial frequency兲, apart from its dependence on the coherence of the beam and the strength of the nonlinearity. In a way very different from previous experiments on incoherent MI, which was driven ...
Determination of the dihedral angle errors of a corner cube from its
... (3) When a perfect cube is tested in this fashion, the prism aperture is covered by a single sinusoidal fringe pattern. Imperfect prisms with planar reflecting surf sinusoidal fringe patterns over their apertures. The patterns are usually inclined at various angles with respect to one another, and e ...
... (3) When a perfect cube is tested in this fashion, the prism aperture is covered by a single sinusoidal fringe pattern. Imperfect prisms with planar reflecting surf sinusoidal fringe patterns over their apertures. The patterns are usually inclined at various angles with respect to one another, and e ...
Modulation transfer function model of a Scophony infrared scene
... waveform corresponds to dc in the image plane, while the modulating acoustic signal produces the irradiance variation. To keep our analysis general, we have cast our MTF models and measurements in terms of acoustic frequency. For any particular projector configuration, the acoustic frequency can be ...
... waveform corresponds to dc in the image plane, while the modulating acoustic signal produces the irradiance variation. To keep our analysis general, we have cast our MTF models and measurements in terms of acoustic frequency. For any particular projector configuration, the acoustic frequency can be ...
Digital Fourier Microscopy for Soft Matter Dynamics
... light, neutrons, and x-rays [2, 3, 4, 5, 6, 7, 8, 9, 10, 11]. Even with this large availability of tools, optical methods remain of paramount importance both in real and reciprocal space. In the past, light scattering has been the traditional choice for quantitative studies of the structural and dyn ...
... light, neutrons, and x-rays [2, 3, 4, 5, 6, 7, 8, 9, 10, 11]. Even with this large availability of tools, optical methods remain of paramount importance both in real and reciprocal space. In the past, light scattering has been the traditional choice for quantitative studies of the structural and dyn ...
Second Harmonic Generation in Photonic Crystals UNIVERSITAT POLITECNICA DE CATALUNYA
... 1064 nm is incident on the crystal after being passed through neutral density filters in order to avoid saturation at the detector for the highest values of the measured intensity. A Glann-laser polarizer sets the desired polarization of the beam. The reflected (or transmitted) intensity is measured ...
... 1064 nm is incident on the crystal after being passed through neutral density filters in order to avoid saturation at the detector for the highest values of the measured intensity. A Glann-laser polarizer sets the desired polarization of the beam. The reflected (or transmitted) intensity is measured ...
Path-reversed substrate-guided- wave optical interconnects for
... waveguide hologram. Theoretical analyses are given for dispersion, bandwidth, and recording parameters of various guided-wave holographic gratings. A device is fabricated with a 45° incident angle and a 45° diffraction angle by use of a 20-mm photopolymer film. The 3-dB bandwidth of the device is me ...
... waveguide hologram. Theoretical analyses are given for dispersion, bandwidth, and recording parameters of various guided-wave holographic gratings. A device is fabricated with a 45° incident angle and a 45° diffraction angle by use of a 20-mm photopolymer film. The 3-dB bandwidth of the device is me ...
Bild 1
... substrate will then be reflected and can escape from the semiconductor through the top surface. DBR-multilayer reflector consisting of typically 5-50 pairs of two materials with different refractive indices. Difference in refractive index the Fresnel reflection will occur at each of the interfaces. ...
... substrate will then be reflected and can escape from the semiconductor through the top surface. DBR-multilayer reflector consisting of typically 5-50 pairs of two materials with different refractive indices. Difference in refractive index the Fresnel reflection will occur at each of the interfaces. ...
“The Rayleigh range of Gaussian Schell
... where r is the radius of the pinhole and ¶ is the wavelength of the light. This concept was later introduced in antenna theory to characterize the distance that a collimated beam will traverse before it begins to signi®cantly diverge [3]. More recently the Rayleigh range has come to be used in conne ...
... where r is the radius of the pinhole and ¶ is the wavelength of the light. This concept was later introduced in antenna theory to characterize the distance that a collimated beam will traverse before it begins to signi®cantly diverge [3]. More recently the Rayleigh range has come to be used in conne ...
Nomarski differential interference-contrast microscopy
... scope of the MicheJson type a beam-split ting prism is used . (For further details, see 11,13,16,17,28,35,36,37,40 and 41). In the lamin-Lebedeff and Nomarski double beam interference microscopes, on the other hand, the beams are split and recomb ined by birefringent crystals. Birefringent or doub ...
... scope of the MicheJson type a beam-split ting prism is used . (For further details, see 11,13,16,17,28,35,36,37,40 and 41). In the lamin-Lebedeff and Nomarski double beam interference microscopes, on the other hand, the beams are split and recomb ined by birefringent crystals. Birefringent or doub ...