Kerala University Optoelectronics Optical Communication
... Audit Course is a pre- requisite for the regular course. ...
... Audit Course is a pre- requisite for the regular course. ...
(full text)
... nearly perfect absorptance in NbN thin films of the appropriate thickness illuminated at the angle of total internal reflection (TIR) by s-polarized light [5]. As the NbN nanowire arrays are similar to wire-grid polarizers, to analyze their polarization-dependent absorptance, rigorous coupled-wave a ...
... nearly perfect absorptance in NbN thin films of the appropriate thickness illuminated at the angle of total internal reflection (TIR) by s-polarized light [5]. As the NbN nanowire arrays are similar to wire-grid polarizers, to analyze their polarization-dependent absorptance, rigorous coupled-wave a ...
Introduction to Aberrations OPTI 518 Jose Sasian
... student in all academic work. The guiding principle of academic integrity is that a student’s submitted work must be the student’s own.” Unless otherwise noted by the instructor, work for all assignments in this course must be conducted independently by each student. CO-AUTHORED WORK OF ANY KIND IS ...
... student in all academic work. The guiding principle of academic integrity is that a student’s submitted work must be the student’s own.” Unless otherwise noted by the instructor, work for all assignments in this course must be conducted independently by each student. CO-AUTHORED WORK OF ANY KIND IS ...
1.5 MB
... The phase circulation splits vortex lines into two classes: left and right handed. As it was mentioned in many previous papers, the fields containing such singular lines are studied in a given plane, which often represents the plane of detection. In such a plane, vortices are classified according to ...
... The phase circulation splits vortex lines into two classes: left and right handed. As it was mentioned in many previous papers, the fields containing such singular lines are studied in a given plane, which often represents the plane of detection. In such a plane, vortices are classified according to ...
An optical cloak made of dielectrics LETTERS *
... dielectric carpet cloak design that is not only isotropic, but also lowloss and broadband. The invisibility is demonstrated within a silicon (Si) slab waveguide where the cloak region is obtained by varying the effective index of refraction in a two-dimensional (2D) space. This index profile is desi ...
... dielectric carpet cloak design that is not only isotropic, but also lowloss and broadband. The invisibility is demonstrated within a silicon (Si) slab waveguide where the cloak region is obtained by varying the effective index of refraction in a two-dimensional (2D) space. This index profile is desi ...
Numerical Analysis of Fifth-Harmonic Conversion of Low
... generated in a type I phase-matched BBO crystal by summing the fourth-harmonic radiation with that portion of the fundamental that is also horizontally polarized. If the 4HG conversion is optimized, the residual portion of the fundamental suitable for 5HG conversion is substantially depleted. The fif ...
... generated in a type I phase-matched BBO crystal by summing the fourth-harmonic radiation with that portion of the fundamental that is also horizontally polarized. If the 4HG conversion is optimized, the residual portion of the fundamental suitable for 5HG conversion is substantially depleted. The fif ...
arXiv: 1106.2158
... correlations, and stationarity boundaries. The line for Spider has been truncated at a multipole of ten as the limited sky coverage of an Antarctic flight will prevent us from probing larger scales. The effects of foreground emission are not included in these results; in particular, it is possible t ...
... correlations, and stationarity boundaries. The line for Spider has been truncated at a multipole of ten as the limited sky coverage of an Antarctic flight will prevent us from probing larger scales. The effects of foreground emission are not included in these results; in particular, it is possible t ...
optical coherence tomography
... of reflecting sites in the object are measured. In diagnostic ultrasound, e.g., the waves propagate sufficiently slowly so that transit times can be measured with purely electronic means. In optics, specific techniques such as femtosecond impulses, photon density waves, and/or coherence techniques h ...
... of reflecting sites in the object are measured. In diagnostic ultrasound, e.g., the waves propagate sufficiently slowly so that transit times can be measured with purely electronic means. In optics, specific techniques such as femtosecond impulses, photon density waves, and/or coherence techniques h ...
pdf
... With the physical reality of the HETG, the idea of a large-area “zone plate” made up from individual facets is much more tangible, Figure 1. This also leads to a design in which the grating bars are phase-coherent only on some sub-aperture scale. This is not unusual in the X-ray regime: the AXAF mi ...
... With the physical reality of the HETG, the idea of a large-area “zone plate” made up from individual facets is much more tangible, Figure 1. This also leads to a design in which the grating bars are phase-coherent only on some sub-aperture scale. This is not unusual in the X-ray regime: the AXAF mi ...
Nonlinear Optics Third Edition
... to include has been to stress the fundamental aspects of nonlinear optics, and to include applications and experimental results only as necessary to illustrate these fundamental issues. Many of the specific topics that I have chosen to include are those of particular historical value. Nonlinear opti ...
... to include has been to stress the fundamental aspects of nonlinear optics, and to include applications and experimental results only as necessary to illustrate these fundamental issues. Many of the specific topics that I have chosen to include are those of particular historical value. Nonlinear opti ...
Spun Fiber for Current Sensors
... Any pressure applied to the side of the fiber can cause micro-bends. Micro-bends cause a localized birefringence which can reduce the sensitivity of the FOCS. Micro-bends can be caused by the packaging technique, for example, if glue or tape is used on the fiber. Often the packaging technique can ca ...
... Any pressure applied to the side of the fiber can cause micro-bends. Micro-bends cause a localized birefringence which can reduce the sensitivity of the FOCS. Micro-bends can be caused by the packaging technique, for example, if glue or tape is used on the fiber. Often the packaging technique can ca ...
Get PDF - OSA Publishing
... definition of a generalized complex phase where n can take any value from one to infinity, a range of models are available lying between the Born or Rytov approximations by varying the parameter n. It is possible that intermediate values of n may provide better accuracy in situations where neither t ...
... definition of a generalized complex phase where n can take any value from one to infinity, a range of models are available lying between the Born or Rytov approximations by varying the parameter n. It is possible that intermediate values of n may provide better accuracy in situations where neither t ...
Notes on optical fibres and fibre bundles
... given length, reach the core material boundary and pass to another medium (glass, air, etc.). Depending on the incident angle, some of the energy will be refracted outward (leaky modes) and some will reflect back into the core material (guided modes). If they are much thicker than ∼1 mm, the fibres ...
... given length, reach the core material boundary and pass to another medium (glass, air, etc.). Depending on the incident angle, some of the energy will be refracted outward (leaky modes) and some will reflect back into the core material (guided modes). If they are much thicker than ∼1 mm, the fibres ...
Light Propagation with Phase Discontinuities
... and (C) have a p phase difference. (D and E) Analytically calculated amplitude and phase shift of the cross-polarized scattered light for V-antennas consisting of gold rods with a circular cross section and with various length h and angle between the rods D at lo = 8 mm (20). The four circles in (D) ...
... and (C) have a p phase difference. (D and E) Analytically calculated amplitude and phase shift of the cross-polarized scattered light for V-antennas consisting of gold rods with a circular cross section and with various length h and angle between the rods D at lo = 8 mm (20). The four circles in (D) ...
Temporal coherence characteristics of a superluminescent
... widely used for the optical measurement [1], and especially the SLD broadband source has been playing an important role in the optical coherence tomography system [2,3]. High output power and large optical bandwidth are key features for the SLD, and the extremely high optical gain in SLD active regi ...
... widely used for the optical measurement [1], and especially the SLD broadband source has been playing an important role in the optical coherence tomography system [2,3]. High output power and large optical bandwidth are key features for the SLD, and the extremely high optical gain in SLD active regi ...
Introduction to modes and their designation in circular and elliptical
... which the central core region of higher permittivity or refractive index is surrounded by a cladding of lower refractive index. In these dielectric waveguides the electric and magnetic field components can exist along the boundary of the guide, that is, the boundary between the cylindrical core and ...
... which the central core region of higher permittivity or refractive index is surrounded by a cladding of lower refractive index. In these dielectric waveguides the electric and magnetic field components can exist along the boundary of the guide, that is, the boundary between the cylindrical core and ...
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).