ELECTRO-OPTICS
... modulated phase at a given time t will then be proportional to the average electric field E(t) at times from t - T to t. As a result, the transit-time-limited modulation bandwidth is = l/T. One method of reducing this time is to apply the voltage V at one end of the crystal while the electrodes serv ...
... modulated phase at a given time t will then be proportional to the average electric field E(t) at times from t - T to t. As a result, the transit-time-limited modulation bandwidth is = l/T. One method of reducing this time is to apply the voltage V at one end of the crystal while the electrodes serv ...
Experimental demonstration of near-infrared
... background dielectric constant is ε∞ = 5.0, the plasma frequency is ωp = 1.38 × 1016 rad/s, and the collision frequency γp is equal to γ0 = 5.07 × 1013 rad/s for bulk Ag [33]. For Ag thin films, γp increases due to the electron scattering at the metal boundaries. The permittivity of Ge is obtained f ...
... background dielectric constant is ε∞ = 5.0, the plasma frequency is ωp = 1.38 × 1016 rad/s, and the collision frequency γp is equal to γ0 = 5.07 × 1013 rad/s for bulk Ag [33]. For Ag thin films, γp increases due to the electron scattering at the metal boundaries. The permittivity of Ge is obtained f ...
Effects of Quantum well Size Alteration on Excitonic Population
... ing, the alloy percentage and the materials of QW could be employed to design a practical optical buffer [7]. After fabrication, current injection and pump intensity are the choices for tuning of OB. Pump intensity change the Rabi frequency of QW material and the population of carriers; so, these pa ...
... ing, the alloy percentage and the materials of QW could be employed to design a practical optical buffer [7]. After fabrication, current injection and pump intensity are the choices for tuning of OB. Pump intensity change the Rabi frequency of QW material and the population of carriers; so, these pa ...
Negative refraction - Condensed Matter Theory group
... and to computer simulations [10]. In fact the problem turned out to be not the calculation but its interpretation as was pointed out in a subsequent Comment [11]. Dispersion is an essential ingredient of negative materials so the two incident waves see a slightly different refractive index and are r ...
... and to computer simulations [10]. In fact the problem turned out to be not the calculation but its interpretation as was pointed out in a subsequent Comment [11]. Dispersion is an essential ingredient of negative materials so the two incident waves see a slightly different refractive index and are r ...
16-level differential phase shift keying (D16PSK)
... 4 are input to a pre-coder, which output the pre-coded signals [Pa (t), Pb (t), Pc (t), Pd (t)] also at a bit rate B4 . These pre-coded signals drive the modulators to generate a 16-level differential phase modulated optical signal at a symbol rate of B4 . As each symbol carries four bits, the signa ...
... 4 are input to a pre-coder, which output the pre-coded signals [Pa (t), Pb (t), Pc (t), Pd (t)] also at a bit rate B4 . These pre-coded signals drive the modulators to generate a 16-level differential phase modulated optical signal at a symbol rate of B4 . As each symbol carries four bits, the signa ...
APPENDIX When designing shape magnification into a lens, the two
... When designing shape magnification into a lens, the two main parameters that can be manipulated are the base curve and center thickness. High index lenses are also important considerations as they allow ...
... When designing shape magnification into a lens, the two main parameters that can be manipulated are the base curve and center thickness. High index lenses are also important considerations as they allow ...
Effect of pores on transmission properties of transparent ceramics
... and transparent armor [5]. With the improvement of ceramic materials processing technology, many kinds of high-quality transparent polycrystalline ceramics have been developed, such as Al2O3 [6-7], MgAl2O4 [8-9], YAG [10], Si3N4 [11]. However, these polycrystalline ceramics did not exhibit the expec ...
... and transparent armor [5]. With the improvement of ceramic materials processing technology, many kinds of high-quality transparent polycrystalline ceramics have been developed, such as Al2O3 [6-7], MgAl2O4 [8-9], YAG [10], Si3N4 [11]. However, these polycrystalline ceramics did not exhibit the expec ...
SURFACE ELECTROMAGNETIC WAVES IN FINITE
... propagating through others, and being absorbed by the rest [1]. Nowadays many researchers struggle with challenge of turning such phenomena into real-world applications [2–6]. Compared to the relatively well-developed science and technology at microwave, optical and x-ray frequencies, basic research ...
... propagating through others, and being absorbed by the rest [1]. Nowadays many researchers struggle with challenge of turning such phenomena into real-world applications [2–6]. Compared to the relatively well-developed science and technology at microwave, optical and x-ray frequencies, basic research ...
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.