Noncollinear parametric amplification in the near
... ordinary, so it is not affected in its propagation but can be injected in two alternative directions while keeping a noncollinear interaction with the pump. Thus, the extraordinary polarized idler can be generated at two specific angles with respect to the optical axis characterized by propagation wi ...
... ordinary, so it is not affected in its propagation but can be injected in two alternative directions while keeping a noncollinear interaction with the pump. Thus, the extraordinary polarized idler can be generated at two specific angles with respect to the optical axis characterized by propagation wi ...
Manuscript2 - Open Research Exeter
... accuracy it becomes. This includes manufacturing accuracy and solar tracking accuracy. The relationship between concentration ratio and acceptance angle directly follows from etendue and is explained further by Jeffrey M. Gordon et.al [4–6]. When comparing the types of solar concentrator photovoltai ...
... accuracy it becomes. This includes manufacturing accuracy and solar tracking accuracy. The relationship between concentration ratio and acceptance angle directly follows from etendue and is explained further by Jeffrey M. Gordon et.al [4–6]. When comparing the types of solar concentrator photovoltai ...
Stops: Finite nature of lenses affects the energy and... and imaged by optical systems
... plane. View is from an axial point for both the entrance and exit pupils. Chief Ray- Enters the optical system along a line directed towards the mid-point of the Entrance Pupil and leaves the system along a line passing though the center of the exit pupil. ...
... plane. View is from an axial point for both the entrance and exit pupils. Chief Ray- Enters the optical system along a line directed towards the mid-point of the Entrance Pupil and leaves the system along a line passing though the center of the exit pupil. ...
Wave incidence
... wave flows along the (for m1 m 2 ) surface and no energy is transmitted into medium 2. Example The value of the angle of er 2 sin 90 o incidence corresponding to sin q c = er1 this is called critical angle, qc. ...
... wave flows along the (for m1 m 2 ) surface and no energy is transmitted into medium 2. Example The value of the angle of er 2 sin 90 o incidence corresponding to sin q c = er1 this is called critical angle, qc. ...
Guided modes of integrated optical guides. A mathematical study
... plays the role of the refractive index. Its variations confine the surface waves close to the coast. As for electromagnetic waves in stratified media, the propagation of surface waves presents a dispersive character. Some results are similar in both fields and the technique used here is inspired by ...
... plays the role of the refractive index. Its variations confine the surface waves close to the coast. As for electromagnetic waves in stratified media, the propagation of surface waves presents a dispersive character. Some results are similar in both fields and the technique used here is inspired by ...
םימצמצ
... So n decreases as λ increases (see figure 3.40) and n increases as λ decreases. ⇒δ(λRed) < δ (λBlue) (can also be seen in the figure with colors). The smallest value of δ , the minimum deviation, δm, is important. ...
... So n decreases as λ increases (see figure 3.40) and n increases as λ decreases. ⇒δ(λRed) < δ (λBlue) (can also be seen in the figure with colors). The smallest value of δ , the minimum deviation, δm, is important. ...
and the matrix
... This book represents an alternative approach to that found in most standard texts to the study of image formation by spherical surfaces. As such it complements the usual treatment and may well be used along with another text. The text "Fundamentals of Optics" by F. A. Jenkins and H. E. White (Toront ...
... This book represents an alternative approach to that found in most standard texts to the study of image formation by spherical surfaces. As such it complements the usual treatment and may well be used along with another text. The text "Fundamentals of Optics" by F. A. Jenkins and H. E. White (Toront ...
a spectral performance model for the
... bands of the incident surface was by the refinement of Tchebysheff equi-ripple8 long-wave pass edge filters as starting designs. These types of filter possess a broad rejection stop-band providing high reflectivity across the prescribed spectral band together with wide passband transparency. The mul ...
... bands of the incident surface was by the refinement of Tchebysheff equi-ripple8 long-wave pass edge filters as starting designs. These types of filter possess a broad rejection stop-band providing high reflectivity across the prescribed spectral band together with wide passband transparency. The mul ...
Experience with optical partial discharge detection M. M ,
... A peak-plate arrangement as a test setup is used for the PD measurement. The distance between the peak and the plate can be changed in a range 1–20 cm, and the voltage supply from 0 to 100 kV. As isolating media, air or oil (transformer oil) under normal pressure are used. The experimental setup is ...
... A peak-plate arrangement as a test setup is used for the PD measurement. The distance between the peak and the plate can be changed in a range 1–20 cm, and the voltage supply from 0 to 100 kV. As isolating media, air or oil (transformer oil) under normal pressure are used. The experimental setup is ...
X-rays as a branch of optics A C Nobel Lecture, December 12, 1927
... difference as due to an appreciable refraction of the X-rays as they enter the crystal. Measurements by Duane and Siegbahn and their collaborators 4 showed that discrepancies of the same type occur, though they are very small indeed, when ordinary X-rays are reflected from calcite. The direction of ...
... difference as due to an appreciable refraction of the X-rays as they enter the crystal. Measurements by Duane and Siegbahn and their collaborators 4 showed that discrepancies of the same type occur, though they are very small indeed, when ordinary X-rays are reflected from calcite. The direction of ...
Ray tracing analysis of L mode pumping of the ionosphere, with
... resonance becomes possible at new locations as rays are guided into the so-called L mode. Stronger transmitted fields are seen in some directions, notably at inclinations close to the vertical or the magnetic zenith (MZ). It is argued that the results could have implications for the magnetic zenith ...
... resonance becomes possible at new locations as rays are guided into the so-called L mode. Stronger transmitted fields are seen in some directions, notably at inclinations close to the vertical or the magnetic zenith (MZ). It is argued that the results could have implications for the magnetic zenith ...
de Sénarmont Bias Retardation in DIC Microscopy Introduction
... conjugate focal plane of the iris diaphragm aperture. Incident wavefronts are sheared by the prism into orthogonal polarized components separated by less than a micrometer, rendered parallel by the condenser optical system, and then utilized to illuminate the specimen. Positioned behind the objectiv ...
... conjugate focal plane of the iris diaphragm aperture. Incident wavefronts are sheared by the prism into orthogonal polarized components separated by less than a micrometer, rendered parallel by the condenser optical system, and then utilized to illuminate the specimen. Positioned behind the objectiv ...
Second Harmonic Generation in Photonic Crystals UNIVERSITAT POLITECNICA DE CATALUNYA
... the fundamental and SH beams necessary for a continuous growth of the SH intensity is provided by the bending of the dispersion curve at the boundary of the forbidden zone or Bragg reflection band. Since each crystal has a different lattice constant, it is expected that the resulting SH beam appears ...
... the fundamental and SH beams necessary for a continuous growth of the SH intensity is provided by the bending of the dispersion curve at the boundary of the forbidden zone or Bragg reflection band. Since each crystal has a different lattice constant, it is expected that the resulting SH beam appears ...
Basic Physical Optics
... A. The principle of superposition An understanding of light wave interference begins with an answer to the question, “What happens at a certain position in space when two light waves pass through that position at the same time? To answer this question, we invoke the principle of superposition, which ...
... A. The principle of superposition An understanding of light wave interference begins with an answer to the question, “What happens at a certain position in space when two light waves pass through that position at the same time? To answer this question, we invoke the principle of superposition, which ...
development of SPR sensors
... Multi-analyte SPR The phase or reflectivity(light intensity) is simultaneously measured over a large surface area via a collimated light source and photo-array detector Enable the detection of multiple analytes simultaneously ...
... Multi-analyte SPR The phase or reflectivity(light intensity) is simultaneously measured over a large surface area via a collimated light source and photo-array detector Enable the detection of multiple analytes simultaneously ...
Full text
... One possible way to improve phase matching would be to coat a QCL with a cladding chosen to reduce µ2ω – µω. This is possible because the waveguide modes have a non-negligible tail extending outside of the QCL into the environment [4]. By placing a coating on the sides of the QCL, one should be abl ...
... One possible way to improve phase matching would be to coat a QCL with a cladding chosen to reduce µ2ω – µω. This is possible because the waveguide modes have a non-negligible tail extending outside of the QCL into the environment [4]. By placing a coating on the sides of the QCL, one should be abl ...
Focusing of light through a stratified medium: a practical
... from the unaberrated Gaussian focus as horizontal axis. We also computed these curves using Eq. (13) without approximation on the Fresnel reflection coefficients rs,p given by Eq. (14). The difference is below 1%, which justifies the approximation made by Török and Varga to obtain Eq. (15), and as a ...
... from the unaberrated Gaussian focus as horizontal axis. We also computed these curves using Eq. (13) without approximation on the Fresnel reflection coefficients rs,p given by Eq. (14). The difference is below 1%, which justifies the approximation made by Török and Varga to obtain Eq. (15), and as a ...
Optical Properties of Lithium - Zinc – Boro- MolybdateGlass
... Electronic polarizability of an ion is related to properties of the material such as refraction, conductivity, optical nonlinearity along with optical basicity and is of significant interest in the study on polarization state of ions in crystalline and amorphous materials [VesselinDimitrov[15]. The ...
... Electronic polarizability of an ion is related to properties of the material such as refraction, conductivity, optical nonlinearity along with optical basicity and is of significant interest in the study on polarization state of ions in crystalline and amorphous materials [VesselinDimitrov[15]. The ...
Diffraction-free beams in thin films *
... highest intensity nearby [2]. Its significance relies on the possibility of engineering laser beams reaching high intensities in a reduced area without diffraction-induced blurring. In particular, the envelope of the Bessel function falls off as 1 / 冑r, which leads to an electromagnetic field having ...
... highest intensity nearby [2]. Its significance relies on the possibility of engineering laser beams reaching high intensities in a reduced area without diffraction-induced blurring. In particular, the envelope of the Bessel function falls off as 1 / 冑r, which leads to an electromagnetic field having ...
Acoustooptic interaction of two light beams in a paratellurite crystal
... We performed an experimental investigation on a paratellurite AO cell where a slow shear acoustic wave was excited by a piezoelectric transducer made from xcut lithium niobate. The calculation has shown that, when the length of the piezoelectric transducer is l = 1.4 cm and the ultrasonic frequency ...
... We performed an experimental investigation on a paratellurite AO cell where a slow shear acoustic wave was excited by a piezoelectric transducer made from xcut lithium niobate. The calculation has shown that, when the length of the piezoelectric transducer is l = 1.4 cm and the ultrasonic frequency ...
Photonic crystal cavities in silicon dioxide
... Next, we use the perturbation design suggested by previous references and introduce a parabolic relationship between the lattice constant and the x-coordinate, thus forming an optical potential well.13 In particular, we choose a minimum effective lattice constant of 0.90a at the center of the potent ...
... Next, we use the perturbation design suggested by previous references and introduce a parabolic relationship between the lattice constant and the x-coordinate, thus forming an optical potential well.13 In particular, we choose a minimum effective lattice constant of 0.90a at the center of the potent ...
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).