two-photon absorption processes
Two photon absorption in semiconductor micro cavities
... calibration processes a typical lateral varia tion in growth thickness of about 1% over a 2 inch wafer can be ...by two coordinates, the angle gives the direction on the wafer with the point of rotation at ...
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Two photon absorption based detection in semiconductor microcavities
... N onlinear optics is an extrem ely broad field w hich is covered by a n u m b er o f books and an extrem ely large num ber o f scientific jo u rn al publications, see for exam ple [5-7]. N onlinear optics is used to ...
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Competition between sub-bandgap linear detection and degenerate two-photon absorption in gallium arsenide photodiodes
... the two-photon contribution is sensitive to the squared power of the light (meaning that the relevant parameter to quantify photocurrent gener- ation is the squared peak optical power), we emphasize that ...
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Measurements of Absolute Atomic Nitrogen Density by Two Photon Absorption Laser Induced Fluorescence Spectroscopy in Hot Air Plasma Generated by Microwave Resonant Cavity
... molecular nitrogen dissociation are performed for the first time in the literature along hot air plasma column. The latter is generated by a microwave resonant cavity at 2.45 GHz and 1 kW for injected power and 600 mbar ...
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Computer Simulation of Transition Regimes of Solitons in Four Photon Resonant Parametric Processes in Case of Two Photon Resonance
... The transition regimes of solitons in four-photon resonant processes in the case of two-photon absorption of the fundamental radiation are numerically investigated. The standard system ...
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Two Photon Processes within the Hyperfine Structure of Hydrogen
... a two-photon process. Two-photon processes come about through second-order perturbation theory so a brief description of it will allow for a greater understanding of the topic as a ...
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Electronic Thesis and Dissertation Repository 8-16-2013 12:00 AM The Study of Nanophotonic Switching Mechanisms in Photonic and Metallic Heterostructures
... nonlinear two-photon absorption and power absorption in a quantum dot- graphene nano ake nanocomposite system have been investigated ...observe two- photon processes in ...
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Polarization dependence of a GaAs based two photon absorption microcavity photodetector
... As the incident polarization gains ellipticity, the electric field inside the cavity can still be found through processes similar to those introduced above; however the polarization inside the cavity will be ...
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Towards Heralded Two-Photon Absorption and Two-Photon Excited Fluorescence for Quantum Microscopy and Spectroscopy
... fluorescence photon is emitted subsequently to the absorption process (see ...derived two-photon absorption theoretically in her thesis in 1931 using quantum theory and the Dirac ...
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An Efficient Energy Transfer in Tb
... luminescence processes such as quantum cutting (QC) via (DC) which capable to split one absorbed high energy photon into two lower energy photons with quantum efficiency (QE) higher than 100% ...
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Comparison of Some Human Tissues and Some Commonly Used Thermoluminescent Dosimeters for Photon Energy Absorption
... energy absorption coefficients, ⁄ , are shown in ...photoelectric absorption, Compton scattering and pair production are clearly seen from the ...photoelectric absorption is the dominant process at ...
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Enhancement of hydrogen production using photoactive nanoparticles on a photochemically inert photonic macroporous support
... where absorption is commensurate with the stop band, reflection of photons occurs about the stop band centre, reducing ...and absorption edge is therefore required to maximize ...
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Hard exclusive wide-angle processes
... in two-photon annihilations including altogether 18 annihilation form ...the two photons annihilate via a quark-antiquark intermediate state) there are only two independent annihilation form ...
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Synthesis and characterization of nanoparticle thin films of a (PbSe)100−xCdx lead chalcogenides
... of absorption coefficient (α) are given in Table ...the absorption edge, and more substantial atomic and molecular reconfiguration which is associated with changes in the absorption coef- ficient and ...
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Two-photon interference : spatial aspects of two-photon entanglement, diffraction, and scattering
... pump photon splits into a pair of down-converted photons [59, ...between two photons have played a pivotal role in many landmark experiments on fourth-order spatial interference [7, 23], ghost imaging and ...
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Chromatic dispersion monitoring for high speed WDM systems using two photon absorption in a semiconductor microcavity
... In this paper, a theoretical and experimental investigation on the use of a TPA-based microcavity for CD monitoring in a high- speed, multi-wavelength optical communications system is pre- sented. As mentioned, one of ...
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Interference and the lossless lossy beam splitter
... nonlinear absorption takes place in each ...first two lines of Table 2 the outputs cannot consist of only one photon, whereas the input state in the third line produces an output of one photon ...
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Ultralow-threshold up-converted lasing in oligofluorenes with tailored strong nonlinear absorption
... the absorption and photoluminescence features with increasing arm length is in accordance with our previous observation with truxene-based oligomers with different arm length exhibiting linear relationship between ...
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Theory of direct and indirect effect of two-photon absorption on nonlinear optical losses in high power semiconductor lasers
... present a clear physical picture concentrating on the effects of TPA and carrier accumulation, we used a longitudinally lumped model, not taking into account photon density distribution P(z) along the cavity and ...
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Acceptance angle influence on optimum incident spot size for high finesse microcavity two photon absorption photodetectors
... , which gives a value of which is 0.963. This corresponds to a cavity finesse of 85.4 and a FSR of 168.3 nm. The spectra in Fig. 4 are normalized to the peak photocurrent and their wavelength axis shifted to centre their ...
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