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Single-Photon Nonlinear Optics with Graphene Plasmons
Single-Photon Nonlinear Optics with Graphene Plasmons

... Introduction.—Nonlinear optical processes find ubiquitous use in modern scientific and technological applications, facilitating diverse phenomena like optical modulation and switching, spectroscopy, and frequency conversion [1]. A long-standing goal has been to realize nonlinear effects at progressi ...
Optical solitons and its applications  Final report Physics 568 (Nonlinear optics)
Optical solitons and its applications Final report Physics 568 (Nonlinear optics)

Photonic band structure theory: assessment and perspectives
Photonic band structure theory: assessment and perspectives

... ranges of frequencies over which ordinary (linear) propagation is forbidden, irrespective of the direction of propagation. The multitude of today microstructuring techniques of high-quality optical materials and the resulting flexibility in fabricating PCs substantially contribute to the enormous in ...
On the Limits of Communication over Optical On-Off Keying Channels with Crosstalk
On the Limits of Communication over Optical On-Off Keying Channels with Crosstalk

Download PDF
Download PDF

Spectral linewidth of a Ne-like Ar capillary discharge soft-x-ray laser... on amplification beyond gain saturation
Spectral linewidth of a Ne-like Ar capillary discharge soft-x-ray laser... on amplification beyond gain saturation

... discharge plasma amplifiers differ from those laser-pumped solid-target collisional soft-x-ray lasers in that the electron density is typically up to two orders of magnitude lower, while the ion temperature exceeds the electron temperature. The Doppler broadening contribution clearly dominates the V ...
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... Crystalline materials like silicon, quartz, and sapphire have lower transmission in THz range due to reflection losses. For silicon it is 50-54% starting from 50 µm, for quartz it is >70% starting from about 120 µm, for sapphire it is >50% starting from about 350 µm at 1-2 mm sample thickness. For p ...
Mode Conversion/Splitting by Optical Analogy of Multistate
Mode Conversion/Splitting by Optical Analogy of Multistate

... the proposed devices, grayscale lithography, such as the one reported for the fabrication of three-dimensional adiabatic waveguide tapers [25], would be a possible choice, and it allows wafer-scale processing of the devices. From the analysis presented in the previous sections, the light transfer ch ...
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... term k is often called the extinction coefficient in physics. Both n and k are dependent on the wavelength. In most circumstances k > 0 (light is absorbed). In this paper we will show how the absorptance, refractive index, and film thickness of thin films can be calculated from the spectral data. ...
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... optical fiber, and if the beam will move even slightly in space, the coupling efficiency will drop dramatically. Even though the AOM can close the light very fast, it cannot close it completely. This is because the applied RF signal to the AOM can only be reduced and not ...
Strong Dispersive and Nonlinear Optical Properties of
Strong Dispersive and Nonlinear Optical Properties of

... where ∆ω is the pulse half-bandwidth. Fractional group delays greater than unity can be obtained by use of more resonators. However, dispersive effects accumulate and eventually severely distort pulses. For a desired net fractional delay, these phase errors might be reduced by relaxing the fractional ...
Practical Aspects of Mirror Usage in Optical Systems for
Practical Aspects of Mirror Usage in Optical Systems for

... present. For the dielectric mirrors discussed here, the amount of light lost through scatter is in practice typically about 0.1%, and not more than a few tenths of one per cent. Scatter is significantly impacted by the characteristics of the substrate. The quality of substrate polish affects the s ...
Practical Aspects of Mirror Usage in Optical Systems for
Practical Aspects of Mirror Usage in Optical Systems for

... present. For the dielectric mirrors discussed here, the amount of light lost through scatter is in practice typically about 0.1%, and not more than a few tenths of one per cent. Scatter is significantly impacted by the characteristics of the substrate. The quality of substrate polish affects the s ...
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Birefringence in Optical Fibers: Applications

... however, practical fibers are not perfectly circularly symmetric. As a result, the two modes propagate with slightly different phase and group velocities. Furthermore, environmental factors such as bend, twist, and anisotropic stress also produce birefringence in the fiber, the direction and magnitu ...
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... PCF [1],[2] consisting of central defect region surrounded by multiple air holes ,that run along the fiber length are attaching much attention in recent years because of their unique properties which are not realized in convectional optical fibers. PCFs are divided into two different kinds of fibers ...
Object Motion Rendering with the String
Object Motion Rendering with the String

... O`Modhrain et al [10] have discussed how haptic interaction can enhance and enrich the viewer’s experience in broadcast content. They proposed a touch TV project with the use of Gravis Xterminator Force and remote control handset to generate haptic cues for cartoons and live sports broadcastings, wh ...
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UNIVERSITAT ROVIRA I VIRGILI
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Development of Lightning Simulator

... of two lightning images to the CIE1931 xy-chromaticity diagram, the points distribute mainly in the ±0.02∆uv lines. This suggests that the color of lightning can be define by the CCT. Thus, we designed the lightning simulator which is adaptable the color based on the CCT, since the CCT can define th ...
Doppler Effect on Light Reflected from Revolving Mirrors:
Doppler Effect on Light Reflected from Revolving Mirrors:

... In this experiment, a horizontal brass wheel R (35 cm in diameter and 6 mm. Thick), which can be made to revolve clockwise and counterclockwise with a maximum angular velocity of 80 turns per second, carries on its periphery ten plane mirrors M's. The mirrors are fixed firmly at equal intervals on t ...
Wavelength Tunable Short Pulses Sources Based on
Wavelength Tunable Short Pulses Sources Based on

... system performance analysis. In chapter 5 the results of the experimentally frequency comb generator using Mach Zehnder modulator tested in the laboratory are collected. Finally, the conclusions of this thesis are given in chapter 6. ...
Honors Physics Final Review Spring 2015
Honors Physics Final Review Spring 2015

... ans: glass b/c denser What two things MUST be true for constructive interference to occur? ans; in-phase and same wavelength What type of wave interaction is described: Two fronts approach each other. One is displaced by 10 cm and the other displaced by 8 cm. At the point of crossover the displaceme ...
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Harold Hopkins (physicist)

Harold Horace Hopkins FRS (1918–1994) was a renowned British physicist. His Wave Theory of Aberrations, (published by Oxford University Press 1950), is central to all modern optical design and provides the mathematical analysis which enables the use of computers to create the wealth of high quality lenses available today. In addition to his theoretical work, his many inventions are in daily use throughout the world. These include zoom lenses, coherent fibre-optics and more recently the rod-lens endoscopes which 'opened the door' to modern key-hole surgery. He was the recipient of many of the world's most prestigious awards and was twice nominated for a Nobel Prize. His citation on receiving the Rumford Medal from the Royal Society in 1984 stated: ""In recognition of his many contributions to the theory and design of optical instruments, especially of a wide variety of important new medical instruments which have made a major contribution to clinical diagnosis and surgery.""
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