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CW mode-locked dye lasers for ultra fast spectroscopic studies
CW mode-locked dye lasers for ultra fast spectroscopic studies

[pdf]
[pdf]

... the simulations, the nutation actually begins with a short interval of high transmission of the driving field through the sample. This feature arises from the finite (100 MHz) bandwidth employed in the calculations and has been suppressed in the figures. In Fig. 3(a), we show an optical nutation sig ...
Interferometric near-infrared spectroscopy directly quantifies optical
Interferometric near-infrared spectroscopy directly quantifies optical

... a priori or fixed at a known value (e.g., 1) through careful experimental design [27], η cannot usually be estimated independently of β. Approaches to address non-ergodicity include the use of higher-order intensity autocorrelations [11,28], ensemble averaging of independent speckles [24,26] by indu ...
Optical Fibers
Optical Fibers

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Refractive indexes of (Al,Ga,In)As epilayers on InP for optoelectronic

... of the samples ( # 3, #4, # 5) were ternary short period superlattices of lattice-matched (A1,In)As and (Ga,In)As rather than homogeneous alloys. The superlattice epilayers were used to mimic the quaternaries as “digital” alloys because of the relative ease in which the effective composition can be ...
Sample questions on optical fibre section of course
Sample questions on optical fibre section of course

... Discuss in detail the advantages / disadvantages of the three main types of fibre connection, fusion splice, mechanical splice and connectorisation. ...
Time Domain Simulation of Optical MIMO Channels
Time Domain Simulation of Optical MIMO Channels

...  “ 15μm, respectively. As of |ξ| can be seen clearly center launch condition excites almost only the LP01 -mode. With increasing eccentricity the order of modes and their respective delay increase as well. By comparing Fig. 5a and Fig. 5b the proposed simulation model points out a good approximatio ...
Fast Modulation of Terahertz Quantum Cascade
Fast Modulation of Terahertz Quantum Cascade

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Optical Wave Guide Polarization Measurement System Students

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2. Measurement of refractive index of liquids using fiber optic

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Polarization spectra of excited-state-Mg(3p)--rare-gas

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pdf file

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FOC-int-optics2

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Plasmonic Airy beams with dynamically controlled trajectories Peng Zhang, Sheng Wang,

Plasmonic Airy beams with dynamically controlled trajectories Peng Zhang, Sheng Wang,
Plasmonic Airy beams with dynamically controlled trajectories Peng Zhang, Sheng Wang,

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Portable Ultrafast Blue Light Sources Designed With Frequency

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properties of laser beams

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Quantum Optics and Photonics

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Comparison of two-color methods based on wavelength and

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Early-time dynamics of the photoexcited hydrated electron

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Holographic optics for a matched-filter optical

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Intermittent measurement

... 1970’s 8. With silicon array detectors 256, 512 or 1024 wavelengths can be monitored at the same time. Today fast CCD array detectors are commercial available. In reference 9 a direct measuring broad-band monitor system in an ion beam sputter process is described 9. In broad-band monitoring the cut- ...
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Fast-Fourier-domain delay line for in vivo optical coherence

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Two-Photon Excited Fluorescence Microscopy - Spectra

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Microbolometer_sensor

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Optical rogue waves

Optical rogue waves are rare pulses of light analogous to rogue or freak ocean waves. The term optical rogue waves was coined to describe rare pulses of broadband light arising during the process of supercontinuum generation—a noise-sensitive nonlinear process in which extremely broadband radiation is generated from a narrowband input waveform—in nonlinear optical fiber. In this context, optical rogue waves are characterized by an anomalous surplus in energy at particular wavelengths (e.g., those shifted to the red of the input waveform) and/or an unexpected peak power. These anomalous events have been shown to follow heavy-tailed statistics, also known as L-shaped statistics, fat-tailed statistics, or extreme-value statistics. These probability distributions are characterized by long tails: large outliers occur rarely, yet much more frequently than expected from Gaussian statistics and intuition. Such distributions also describe the probabilities of freak ocean waves and various phenomena in both the man-made and natural worlds. Despite their infrequency, rare events wield significant influence in many systems. Aside from the statistical similarities, light waves traveling in optical fibers are known to obey the similar mathematics as water waves traveling in the open ocean (the nonlinear Schrödinger equation), supporting the analogy between oceanic rogue waves and their optical counterparts. More generally, research has exposed a number of different analogies between extreme events in optics and hydrodynamic systems. A key practical difference is that most optical experiments can be done with a table-top apparatus, offer a high degree of experimental control, and allow data to be acquired extremely rapidly. Consequently, optical rogue waves are attractive for experimental and theoretical research and have become a highly studied phenomenon. The particulars of the analogy between extreme waves in optics and hydrodynamics may vary depending on the context, but the existence of rare events and extreme statistics in wave-related phenomena are common ground.
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