Synopsis by Brad Thompson
... Unfortunately this is one of the two missing equations. Its derivation is easily attainable utilizing the methodology used in the reference. Assuming that the lasing medium is a rod of radius a, the authors propose that, “The laser output energy can then be regarded as proportional to the cross sect ...
... Unfortunately this is one of the two missing equations. Its derivation is easily attainable utilizing the methodology used in the reference. Assuming that the lasing medium is a rod of radius a, the authors propose that, “The laser output energy can then be regarded as proportional to the cross sect ...
AR26272276
... telecommunications are able to transfer voice and computer images and data with a speed that is one hundred times more than telecommunications networks with copper cables [1]. The process and alteration of optical signals into electric current is troublesome in high speeds, so if the width of optica ...
... telecommunications are able to transfer voice and computer images and data with a speed that is one hundred times more than telecommunications networks with copper cables [1]. The process and alteration of optical signals into electric current is troublesome in high speeds, so if the width of optica ...
Active semiconductor-based grating waveguide structures
... which were first observed by Wood [1] and subsequently subjected to extensive theoretical investigations [2]–[6]. These investigations have been expanded to resonance anomalies in a grating waveguide structure (GWS), and include new theoretical and experimental developments [7]–[16]. The basic GWS i ...
... which were first observed by Wood [1] and subsequently subjected to extensive theoretical investigations [2]–[6]. These investigations have been expanded to resonance anomalies in a grating waveguide structure (GWS), and include new theoretical and experimental developments [7]–[16]. The basic GWS i ...
Chapter 2
... The index distribution over the length of BG is analogous to the grating aperture in sect3.3.2. The side lobes arise due to the abrupt start and end of the grating, which result in a sinc(.) behavior for the side lobes. Apodization is similar to pulse shaping to reduce the side lobes of signal spect ...
... The index distribution over the length of BG is analogous to the grating aperture in sect3.3.2. The side lobes arise due to the abrupt start and end of the grating, which result in a sinc(.) behavior for the side lobes. Apodization is similar to pulse shaping to reduce the side lobes of signal spect ...
Generation and detection of ultrabroadband terahertz radiation
... leads to smooth spectral distribution up to 8THz. ・PC-detection provides about 8 times better signal-to-noise-ratio than EO-detection up to frequencies in excess of 8THz. ...
... leads to smooth spectral distribution up to 8THz. ・PC-detection provides about 8 times better signal-to-noise-ratio than EO-detection up to frequencies in excess of 8THz. ...
8. Beam splitters
... 8.1. Beam splitter plates Plate dividers are thin plane-parallel or edge plates made of optical glass, quartz or single-axis crystals (e.g. CaF2) coated with thin-film layers system. Depending on application it can be either metallic layer or dielectric coating. However one should remember that suc ...
... 8.1. Beam splitter plates Plate dividers are thin plane-parallel or edge plates made of optical glass, quartz or single-axis crystals (e.g. CaF2) coated with thin-film layers system. Depending on application it can be either metallic layer or dielectric coating. However one should remember that suc ...
Gullstrand equation
... in more dense materials, their refractive indices always exceed one and therefore n 1 is greater than n 2 . The refractive index is also a function of pressure, increasing as pressure increases, due to the resulting increase in density, although this dependence is quite weak with liquids because of ...
... in more dense materials, their refractive indices always exceed one and therefore n 1 is greater than n 2 . The refractive index is also a function of pressure, increasing as pressure increases, due to the resulting increase in density, although this dependence is quite weak with liquids because of ...
Optical communication systems
... Attenuation refers to the loss of light energy as the light pulse travels from one end of the cable to the other. Absorption refers to how light energy is converted to heat in the core material because of the impurity of the glass or plastic. Scattering refers to the light lost due to light wa ...
... Attenuation refers to the loss of light energy as the light pulse travels from one end of the cable to the other. Absorption refers to how light energy is converted to heat in the core material because of the impurity of the glass or plastic. Scattering refers to the light lost due to light wa ...
Geometrical Optics 101: Paraxial Ray Tracing
... Within paraxial ray tracing, there are several assumptions that introduce error into the calculations. Paraxial ray tracing assumes that the tangent and sine of all angles are equal to the angles themselves (in other words, tan(u) = u and sin(u) = u). This approximation is valid for small angles, bu ...
... Within paraxial ray tracing, there are several assumptions that introduce error into the calculations. Paraxial ray tracing assumes that the tangent and sine of all angles are equal to the angles themselves (in other words, tan(u) = u and sin(u) = u). This approximation is valid for small angles, bu ...
Generation of lattices of optical vortices
... rotate. The background beam spread more widely than in the case of a lattice with alternating charges. Because the ...
... rotate. The background beam spread more widely than in the case of a lattice with alternating charges. Because the ...
Feature Selection/Extraction for Classification Problems
... point which leave the lattice invariant ⟹ around a given point ...
... point which leave the lattice invariant ⟹ around a given point ...
Cristaux photoniques non
... Introduction to solitons In optics, the term soliton is used to refer to any optical field that does not change during propagation because of a delicate balance between nonlinear and linear effects in the medium. There are two main kinds of solitons: Spatial solitons: the nonlinear effect can balan ...
... Introduction to solitons In optics, the term soliton is used to refer to any optical field that does not change during propagation because of a delicate balance between nonlinear and linear effects in the medium. There are two main kinds of solitons: Spatial solitons: the nonlinear effect can balan ...
Conference title, upper and lower case, bolded, 18 point type
... collimated beam then passes through a Glan-Thompson polarizer (Thorlabs GTH10) and a quarter waveplate (achromatic (Thorlabs AQWP05M-600) or zero-order (Thorlabs WPQ05M-405) waveplate are selectively used depending on the bandwidth of the illumination source) to generate circularly polarized light. ...
... collimated beam then passes through a Glan-Thompson polarizer (Thorlabs GTH10) and a quarter waveplate (achromatic (Thorlabs AQWP05M-600) or zero-order (Thorlabs WPQ05M-405) waveplate are selectively used depending on the bandwidth of the illumination source) to generate circularly polarized light. ...
Two-dimensional modulational instability in photorefractive media M Saffman , Glen McCarthy
... findings are confirmed by experimental measurements on a strontium barium niobate photorefractive crystal. Keywords: photorefractive nonlinear optics, self-focusing, instabilities ...
... findings are confirmed by experimental measurements on a strontium barium niobate photorefractive crystal. Keywords: photorefractive nonlinear optics, self-focusing, instabilities ...
VLBA imaging of the Gamma-ray Emission Regions in
... • Many gamma-ray flares in blazars occur in superluminal knots that move down the jet & are seen in VLBA images ⇒ Sometimes upstream of 43 GHz core ⇒ Often in or downstream of 43 GHz core • Intra-day γ-ray/optical variability can occur in mm-wave regions ⇒ The highest-Γ jets are very narrow, < 1°, s ...
... • Many gamma-ray flares in blazars occur in superluminal knots that move down the jet & are seen in VLBA images ⇒ Sometimes upstream of 43 GHz core ⇒ Often in or downstream of 43 GHz core • Intra-day γ-ray/optical variability can occur in mm-wave regions ⇒ The highest-Γ jets are very narrow, < 1°, s ...
Imaging with Terahertz Pulses
... homogenous, planar solid. Spectroscopic measurements require an analysis method for THz waveforms. Typically, one measures the transmitted, timedomain waveform both with and without a sample present and then performs a Fourier deconvolution in order to extract material parameters. The success of thi ...
... homogenous, planar solid. Spectroscopic measurements require an analysis method for THz waveforms. Typically, one measures the transmitted, timedomain waveform both with and without a sample present and then performs a Fourier deconvolution in order to extract material parameters. The success of thi ...
Certified Optical Network Engineer Core Networks
... On this Certified Optical Network Engineer training programme you’ll learn how next generation optical networks can be engineered to use the power of light to meet the challenging demands of telecoms systems today. You’ll learn about the clever things that can be done with light to deliver higher da ...
... On this Certified Optical Network Engineer training programme you’ll learn how next generation optical networks can be engineered to use the power of light to meet the challenging demands of telecoms systems today. You’ll learn about the clever things that can be done with light to deliver higher da ...
Reflection of X-rays with change of frequency
... In the case considered by Brillouin, the sound-waves are those spontaneously existing as the result of the thermal agitation in the substance. The wavelength A* of the sound which is actually operative is automatically determined by the wavelength A of the light and the glancing angle 8 as per equat ...
... In the case considered by Brillouin, the sound-waves are those spontaneously existing as the result of the thermal agitation in the substance. The wavelength A* of the sound which is actually operative is automatically determined by the wavelength A of the light and the glancing angle 8 as per equat ...
Introduction to optical fibers
... components generate phase difference changing during propagation along the fiber and random mixing of the two components causes change in polarization. To recall, the phenomenon of birefringence can be observed while transmitting the light through certain crystals (calcite, ice, quartz, mica, sugar) ...
... components generate phase difference changing during propagation along the fiber and random mixing of the two components causes change in polarization. To recall, the phenomenon of birefringence can be observed while transmitting the light through certain crystals (calcite, ice, quartz, mica, sugar) ...
DESIGN AND OPTIMIZATION OF TWO CHANNEL DROP
... crystal linear and ring waveguide cavities. One is a low refractive index waveguide with low contrast between core and clad. This type of waveguides has advantages such as low propagation loss, low coupling loss and low dispersion. A multichannel-drop filter using photonic crystal ring resonator is ...
... crystal linear and ring waveguide cavities. One is a low refractive index waveguide with low contrast between core and clad. This type of waveguides has advantages such as low propagation loss, low coupling loss and low dispersion. A multichannel-drop filter using photonic crystal ring resonator is ...
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).