n - LSU Physics
... A red light beam with wavelength λ=0.625µm travels through glass (n=1.46) a distance of 1mm. A second beam, parallel to the first one and originally in phase with it, travels the same distance through sapphire (n=1.77). • How many wavelengths are there of each beam inside the material? In glass, λg ...
... A red light beam with wavelength λ=0.625µm travels through glass (n=1.46) a distance of 1mm. A second beam, parallel to the first one and originally in phase with it, travels the same distance through sapphire (n=1.77). • How many wavelengths are there of each beam inside the material? In glass, λg ...
Experimental method for reliably establishing the refractive index of
... method for reliably characterising the complex refractive indices of each system has largely not been demonstrated. To this end, we initiated this study. In general, when modelling the optics of many-layer systems, one of the principle difficulties comprises overcoming the degeneracy between complex ...
... method for reliably characterising the complex refractive indices of each system has largely not been demonstrated. To this end, we initiated this study. In general, when modelling the optics of many-layer systems, one of the principle difficulties comprises overcoming the degeneracy between complex ...
Inverse dispersion engineering in silicon waveguides
... where dn is the component of the electric displacement field normal to the interface and eT is the component of the electric field tangent to the interface in the transverse plane. It is worth remembering that the dielectric tensor is diagonal in the new local basis since the effective medium around ...
... where dn is the component of the electric displacement field normal to the interface and eT is the component of the electric field tangent to the interface in the transverse plane. It is worth remembering that the dielectric tensor is diagonal in the new local basis since the effective medium around ...
Tunable properties of light propagation in photonic liquid crystal fibers
... above or below the silica glass index for different temperature regions. Parameters of a prototype nematic liquid crystalline mixture (cat. no. 1550) manufactured at the Military University of Technology in Warsaw [5,9] was used in our theoretical investigations. The 1550 LC-mixture is composed of a ...
... above or below the silica glass index for different temperature regions. Parameters of a prototype nematic liquid crystalline mixture (cat. no. 1550) manufactured at the Military University of Technology in Warsaw [5,9] was used in our theoretical investigations. The 1550 LC-mixture is composed of a ...
13 Int. Symp on Appl. Laser ...
... In recent years the scattering from particles illuminated with short pulse lasers was investigated in a number of publications. A number of these papers deal with the theoretical and numerical description of the scattering process [1], whereas the applications mainly focus on the inelastic scatterin ...
... In recent years the scattering from particles illuminated with short pulse lasers was investigated in a number of publications. A number of these papers deal with the theoretical and numerical description of the scattering process [1], whereas the applications mainly focus on the inelastic scatterin ...
6.1 Electromagnetic Waves
... • electromagnetic radiation can be described as a harmonic wave in either time or distance • waves are characterized by their period, frequency, wavelength and wave number • Planck's Law gives the energy of electromagnetic quanta • ν and λ are related by the speed of light, which in turn is determin ...
... • electromagnetic radiation can be described as a harmonic wave in either time or distance • waves are characterized by their period, frequency, wavelength and wave number • Planck's Law gives the energy of electromagnetic quanta • ν and λ are related by the speed of light, which in turn is determin ...
Refractometry of microscopic objects using digital holography
... interesting alternative to conventional microscopy. In this paper, it is shown that DH also is useful in refractometry of microscopic objects. Measurements of the index of refraction of small inhomogeneous object such as crystals are made with methods such as the Becke line method, the phase contras ...
... interesting alternative to conventional microscopy. In this paper, it is shown that DH also is useful in refractometry of microscopic objects. Measurements of the index of refraction of small inhomogeneous object such as crystals are made with methods such as the Becke line method, the phase contras ...
Dispersion staining
The optical properties of all liquid and solid materials change as a function of the wavelength of light used to measure them. This change as a function of wavelength is called the dispersion of the optical properties. The graph created by plotting the optical property of interest by the wavelength at which it is measured is called a dispersion curve.The dispersion staining is an analytical technique used in light microscopy that takes advantage of the differences in the dispersion curve of the refractive index of an unknown material relative to a standard material with a known dispersion curve to identify or characterize that unknown material. These differences become manifest as a color when the two dispersion curves intersect for some visible wavelength. This is an optical staining technique and requires no stains or dyes to produce the color. Its primary use today is in the conformation of the presence of asbestos in construction materials but it has many other applications.