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Introduction to Diffraction Grating
Introduction to Diffraction Grating

... The overall efficiency of the gratings depends on several application-specific parameters such as wavelength, polarization, and angle of incidence of the incoming light. The efficiency is also affected by the grating design parameters such as blaze angle for the ruled gratings and profile depth for ...
A Low Cost Optical Coherence Tomography Machine
A Low Cost Optical Coherence Tomography Machine

Untitled
Untitled

... Maxwell’s electromagnetic theory of light and its competition with elastic-medium theories of light; theories of the coupling between ether and matter in the contexts of optical dispersion, optical rotation, and the optics of moving body. Chapter 7 describes some highly mathematical contributions to ...
CARMENES in SPIE 2014. Building a fiber link for CARMENES
CARMENES in SPIE 2014. Building a fiber link for CARMENES

... CARMENES is a high-resolution spectroscopy project for the 3.5 m telescope at the Calar Alto Observatory, consisting of two R ∼ 82000 echelle spectrographs, one for the visual range from 550 nm to 950 nm (VIS) and one for the near infrared range from 950 nm to 1700 nm (NIR). The main scientific goal ...
Laser Sources for Confocal Microscopy
Laser Sources for Confocal Microscopy

UNIVERSITAT ROVIRA I VIRGILI
UNIVERSITAT ROVIRA I VIRGILI

... an ellipsometer is such that a change is film thickness of a few Angstroms is usually easy to detect. The use of spectroscopic ellipsometry has many advantages. The most important one is that ellipsometry measures a ratio of two values which permits highly accurate and reproducible (even in low ligh ...
Waveinduced light field fluctuations in measured irradiance depth
Waveinduced light field fluctuations in measured irradiance depth

Fibre-Loop Ring-Down Spectroscopy Using Liquid Core Waveguides
Fibre-Loop Ring-Down Spectroscopy Using Liquid Core Waveguides

Chapter 5: Optical aberrations in the mouse eye
Chapter 5: Optical aberrations in the mouse eye

Light-Matter Interaction: Conversion of Optical Energy and
Light-Matter Interaction: Conversion of Optical Energy and

... 1. Introduction. When a light pulse arrives at the surface of a mirror, it bounces back and transfers twice its initial momentum to the mirror.1 The mechanical motion thus set off at the front facet of the mirror travels forward and gives rise to elastic vibrations through the entire thickness of th ...
Transverse Modes in Large-Mode-Area Fibers
Transverse Modes in Large-Mode-Area Fibers

... military. Their main advantages are heat-dissipation capability, broad gain bandwidth, compactness, robustness and high efficiency. The primary limitation in their power scaling is the onset of nonlinear effects. Optical fibers have relatively weak nonlinearities compared with other media, since sil ...
Print this article - Indian Journal of Science and Technology
Print this article - Indian Journal of Science and Technology

... ZnO nanostructures, sensitivities of the sensors have improved further, as shown in Table 2. It shows that sensitivity of tapered POF has increased from 0.0222 mV/% to 0.176 mV/% and sensitivity of tapered silica has improved from 0.0011 mV/% to 00.38 mV/%. However, tapered POF still performed bette ...
Laser Sources for Confocal Microscopy
Laser Sources for Confocal Microscopy

Aberrations and retinal image quality of the normal human eye
Aberrations and retinal image quality of the normal human eye

... and interferometric techniques.12 The second set was made on nine other eyes with a slightly different procedure. For comparison with double-pass and interferometric MTF’s, measurements were made on the right eyes of RNB, DRW, and DHB, whose ages were 36, 40, and 34, respectively. These observers we ...
Chapter 30 The Law of Reflection
Chapter 30 The Law of Reflection

... points A, B, C, concentric circles described about each of these points represent the waves which come from them. And one must imagine the same about every point of the surface and of the part within the flame.” Christian Huygens ...
Erbium-implanted high-Q silica toroidal microcavity laser
Erbium-implanted high-Q silica toroidal microcavity laser

... to the advantages in fabrication, these devices provide improved spectral performance as compared to microspheres owing to their reduced modal spectra [16,18]. In particular, single-mode operation was possible in these devices. As a complementary method of gain functionalization that is more compati ...
A study on optical absorption and constants of doped poly(ethylene
A study on optical absorption and constants of doped poly(ethylene

Waveguide Simualtion Using Mode Matching Method
Waveguide Simualtion Using Mode Matching Method

Limits of lithography - Proceedings of the IEEE
Limits of lithography - Proceedings of the IEEE

James MacCullagh (1809‐47)  Trinity Monday Memorial Discourse 2015 Professor James G Lunney FTCD MRIA
James MacCullagh (1809‐47)  Trinity Monday Memorial Discourse 2015 Professor James G Lunney FTCD MRIA

... total internal reflection in a transparent material. In 1836 MacCullagh sought a new  theoretical description of how light is reflected at metal surfaces. He introduced the  concept  of  complex  refractive  index,  where  the  real  part  determines  the  wave  propagation  and  the  imaginary  par ...
Long-distance vision
Long-distance vision

Analysis And Design Of Wide-angle Foveated Optical
Analysis And Design Of Wide-angle Foveated Optical

Atom-Wall interaction
Atom-Wall interaction

Simulation of Fiber Fuse Phenomenon in Single
Simulation of Fiber Fuse Phenomenon in Single

Vers un plan détaillé (début 08/11/01)
Vers un plan détaillé (début 08/11/01)

... state. This spontaneous emission can be described as radiated by an atomic dipole oscillating at the transition frequency -or as a sum of such radiations, if various decay channnels are opened-. In the vicinity of a reflector, the boundary conditions are responsible for a "selfreaction" correction t ...
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Nonlinear optics

Nonlinear optics (NLO) is the branch of optics that describes the behavior of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed at very high light intensities (values of the electric field comparable to interatomic electric fields, typically 108 V/m) such as those provided by lasers. Above the Schwinger limit, the vacuum itself is expected to become nonlinear. In nonlinear optics, the superposition principle no longer holds.Nonlinear optics remained unexplored until the discovery of Second harmonic generation shortly after demonstration of the first laser. (Peter Franken et al. at University of Michigan in 1961)
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