Gotowe bibliografie tematyczne / Intrinsic excitation

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Gotowa bibliografia na temat „Intrinsic excitation”

Autor: Grafiati
Data publikacji: 2 listopada 2024
Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Intrinsic excitation"

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Trukhin, A. N. "Energy Transport in SiO2 Crystals: Luminescence Excitation Spectra of Stishovite and α-Quartz". Latvian Journal of Physics and Technical Sciences 59, № 4 (2022): 19–24. http://dx.doi.org/10.2478/lpts-2022-0030.

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Abstract The migration of elementary electronic excitations was studied in a single crystal of stishovite and compared with migration in a crystal of α-quartz and polycrystalline stishovite powder. The research method is based on comparing the transfer of absorbed energy to luminescence centers, used as detectors of quasiparticles, and the near-surface nonradiative annihilation of electronic excitations. A sign of migration is the appearance of some minima in the photoluminescence (PLE) excitation spectrum in the region of maxima in the intrinsic absorption spectrum. The PLE spectrum of stisho
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Sorbello, C., and R. Etchenique. "Intrinsic optical sectioning with upconverting nanoparticles." Chemical Communications 54, no. 15 (2018): 1861–64. http://dx.doi.org/10.1039/c7cc08443a.

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Belsky, A. N., R. Cortes, A. V. Gektin, P. Martin, V. V. Mikhailin, and C. Pédrini. "Excitation mechanisms of CsI fast intrinsic luminescence." Journal of Luminescence 72-74 (June 1997): 93–95. http://dx.doi.org/10.1016/s0022-2313(97)00028-8.

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Hizhnyi, Yuriy, S. G. Nedilko, V. Chornii, et al. "Electronic Structure and Luminescence Spectroscopy of M'Bi(MoO4)2 (M' = Li, Na, K), LiY(MoO4)2 and NaFe(MoO4)2 Molybdates." Solid State Phenomena 200 (April 2013): 114–22. http://dx.doi.org/10.4028/www.scientific.net/ssp.200.114.

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The mechanisms of intrinsic luminescence in the set of molybdate crystals of MIMIII(MoO4)2 (MI = Li, Na, K; MIII =Bi, Y, Fe) type are revealed in complex experimental and theoretical studies. The luminescence spectroscopy under vacuum ultraviolet (VUV) synchrotron excitations is applied together with the electronic structure calculations carried out by the FLAPW method. The energy gaps (Eg) values of the crystals are determined in simultaneous analysis of diffuse reflectance and luminescence excitation spectra. It is found that the molybdate groups MoO42- play a dominant role in the processes
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Börger, Lara, Michael Schindelegger, Mengnan Zhao, et al. "Chaotic oceanic excitation of low-frequency polar motion variability." Earth System Dynamics 16, no. 1 (2025): 75–90. https://doi.org/10.5194/esd-16-75-2025.

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Abstract. Studies of Earth rotation variations generally assume that changes in non-tidal oceanic angular momentum (OAM) manifest the ocean's direct response to atmospheric forces. However, fluctuations in OAM may also arise from chaotic intrinsic ocean processes that originate in local nonlinear (e.g., mesoscale) dynamics and can map into motions and mass variations at basin scales. To examine whether such random mass redistributions effectively excite polar motion, we compute monthly OAM anomalies from a 50-member ensemble of eddy-permitting global ocean/sea ice simulations that sample intri
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Omagari, Shun, and Martin Vacha. "Toward accurate measurement of the intrinsic quantum yield of lanthanide complexes with back energy transfer." Physical Chemistry Chemical Physics 22, no. 6 (2020): 3683–90. http://dx.doi.org/10.1039/c9cp06294g.

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Wu, Ting, Yiting Tao, Panting Wang, Mingjun Zhao, and Danping Chen. "ZnCl2-Enhanced Intrinsic Luminescence of Tin Chlorophosphate Glasses." Photonics 9, no. 12 (2022): 973. http://dx.doi.org/10.3390/photonics9120973.

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This communication reports the intrinsic luminescence of tin chlorophosphate glasses. The glass maintains the low melting point characteristics of tin fluorophosphate glasses, and exhibits a red-shifted and broadened excitation wavelength peak. Tin chlorophosphate glasses can exhibit a broadband luminescence of 400–700 nm under an excitation of 380–430 nm. Furthermore, the introduction of ZnCl2 into tin chlorophosphate glasses can considerably enhance the luminescence without affecting their low-melting characteristics. The luminescence intensity can be increased fourfold, with the enhancement
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Steiner, T., and M. L. W. Thewalt. "Subnanosecond transient studies of intrinsic and extrinsic luminescence in CdSe." Canadian Journal of Physics 63, no. 9 (1985): 1205–11. http://dx.doi.org/10.1139/p85-197.

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The photoluminescence spectrum and transient behaviour of free and bound excitons in CdSe have been studied with both resonant and above band-gap excitation. The free- and bound-exciton lifetimes were found to be excitation-intensity dependent even at very low levels. In all cases, the free-exciton luminescence decayed more rapidly than that of the bound excitons. A comparison of the no-phonon and longitudinal-optic-phonon replicas of the free-exciton luminescence indicates that the observed doublet structure of the no-phonon spectrum arises from the two polariton branches. Resonant excitation
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Wang, Yangbo, Yingdong Han, Runfa Liu, Cunping Duan, and Huaiyong Li. "Excitation-Controlled Host–Guest Multicolor Luminescence in Lanthanide-Doped Calcium Zirconate for Information Encryption." Molecules 28, no. 22 (2023): 7623. http://dx.doi.org/10.3390/molecules28227623.

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Efficient control over lanthanide luminescence by regulating excitations offers a real-time and reversible luminescence-managing strategy, which is of great importance and highly desirable for various applications, including multicolor display and information encryption. Herein, we studied the crystal structure, luminescence properties, and mechanisms of undoped and Tb3+/Eu3+-doped CaZrO3 in detail. The intrinsic purple-blue luminescence from host CaZrO3 and the introduced green/red luminescence from guest dopants Tb3+/Eu3+ were found to have different excitation mechanisms and, therefore, dif
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Zhyshkovych, A. V. "Intrinsic and impurity luminescence of CaF2, CaF2:Eu2+ and CaF2:Eu3+ nanoparticles at high energy excitation." Functional materials 21, no. 1 (2014): 10–14. http://dx.doi.org/10.15407/fm21.01.010.

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Rozprawy doktorskie na temat "Intrinsic excitation"

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Carpentier, Paul. "Microscopic and dynamical description of the fission process including intrinsic excitations." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP093.

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Parmi les différentes réactions nucléaires, la fission est sans aucun doute l'une des plus difficiles à décrire, reflétant la diversité des aspects dynamiques du problème à N corps. Lors de ce processus, le noyau se retrouve dans des états de déformations extrêmes aboutissant à la formation de deux fragments. Les études réalisées au CEA se concentrent jusqu'ici sur la fission d'actinides à l'hypothèse adiabatique : à chaque étape du mouvement collectif le noyau est considéré dans son état de minimum d'énergie. Seuls les degrés de libertés collectifs, telle que la déformation, sont pris en comp
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Boucetta, Soufiane, and Soufiane Boucetta. "Modulation of intrinsic and synaptic excitability during sleep oscillations and electrographic seizures." Master's thesis, Université Laval, 2005. http://hdl.handle.net/20.500.11794/18026.

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Le présente mémoire fournit des nouvelles évidences montrant la modulation de l’excitabilité neuronale intrinsèque et synaptique, et la conséquence de cette modulation sur l’activité neuronale durant à la fois, les oscillations lentes du sommeil, et les crises électrographiques in vivo chez des animaux anesthésiés. Nous effectuons des enregistrements intracellulaires simultanés de neurones corticaux et des potentiels de champs locaux au niveau du gyrus suprasylvien à l’intérieur du cortex associatif pariétal (aires : 5, 7 et 21). Nous suggérons que la fluctuation de la concentration extracellu
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Paul, Uchenna Prince. "Fluorescence Detectors for Proteins and Toxic Heavy Metals." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd416.pdf.

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Chang, Chi-Ying, and 張琦英. "Intrinsic fluorescence feature extraction of excitation-emission matrix by using multi-dimensional ensemble empirical mode decomposition." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/r72caw.

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碩士<br>國立交通大學<br>生醫工程研究所<br>102<br>Excitation-emission matrix (EEM) fluorescence spectroscopy is a noninvasive method for tissue diagnosis and has become important in clinical use. However, the intrinsic characterization of EEM fluorescence remains unclear. Photobleaching and the complexity of the chemical compounds make it difficult to distinguish individual compounds due to overlapping features. Conventional studies use principal component analysis (PCA) for EEM fluorescence analysis, and the relationship between the EEM features extracted by PCA and diseases has been examined. The spectral f
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Książki na temat "Intrinsic excitation"

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Solymar, L., D. Walsh, and R. R. A. Syms. Semiconductors. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198829942.003.0008.

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Both intrinsic and extrinsic semiconductors are discussed in terms of their band structure. The acceptor and donor energy levels are introduced. Scattering is discussed, from which the conductivity of semiconductors is derived. Some mathematical relations between electron and hole densities are derived. The mobilities of III–V and II–VI compounds and their dependence on impurity concentrations are discussed. Band structures of real and idealized semiconductors are contrasted. Measurements of semiconductor properties are reviewed. Various possibilities for optical excitation of electrons are di
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Asai, H. Theoretical Study of THz Emission from HTS Cuprate. Edited by A. V. Narlikar. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780198738169.013.9.

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This article examines the THz emission from high-temperature superconducting (HTS) cuprates in the mesoscopic state using the intrinsic Josephson junction model. Cuprate superconductors are high-temperature superconductors that exhibit exotic electromagnetic properties. One of the remarkable features of HTS cuprates is high anisotropy due to their layered structures. Almost all HTS cuprates are composed of stacks of CuO2 layers and blocking layers which supply charge carriers to the CuO2 layers. The crystal structures of the HTS cuprates naturally form Josephson junctions known as intrinsic Jo
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Części książek na temat "Intrinsic excitation"

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Ramakrishnan, Subramanian, and Balakumar Balachandran. "Intrinsic Localized Modes in Micro-scale Oscillator Arrays Subjected to Deterministic Excitation and White Noise." In IUTAM Symposium on Multi-Functional Material Structures and Systems. Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-90-481-3771-8_33.

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Bickham, S. R., S. A. Kiselev, and A. J. Sievers. "Intrinsic Localized Modes in Anharmonic Lattices." In Spectroscopy and Dynamics of Collective Excitations in Solids. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5835-4_9.

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Adams, David j., and Javier Cuevas. "Electrophysiological Properties of Intrinsic Cardiac Neurons." In Basic and Clinical Neurocardiology. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195141290.003.0001.

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Abstract Cardiac performance is determined by the rate and strength of contraction of the heart. There is increasing evidence indicating that intrinsic cardiac neurons interact with extracardiac intrathoracic ganglia and the central nervous system to control the heart and are capable of independently monitoring and influencing cardiac function. Aspects of cardiac function that are subject to control by intracardiac neurons include chronotropic actions (changes in heart rate), dromotropic actions (changes in conduction of excitation) mediated by pacemaker and conducting cells, and inotropic act
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Lőrincz, Magor L., Vincenzo Crunelli, and Francois David. "Excitation-Inhibition Balance in Absence Seizure Ictogenesis." In Jasper's Basic Mechanisms of the Epilepsies, 5th ed., edited by Massimo Avoli, Marco de Curtis, Christophe Bernard, and Ivan Soltesz. Oxford University PressNew York, 2024. http://dx.doi.org/10.1093/med/9780197549469.003.0020.

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Abstract Thirty percent of children with absence seizures are pharmaco-resistant, and 60% suffer from neuropsychiatric comorbidities that often persist even after full pharmacological control of the seizures. This highlights the need for a detailed comprehension of the cellular and network mechanisms of these nonconvulsive seizures. Generally, network hyperexcitability and hypersynchrony underlying seizure ictogenesis are thought to originate from impaired inhibition or enhanced excitation. In absence seizures, there is a markedly enhanced synchrony in cortico-thalamic and cortico-basal gangli
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Shapiro, Howard M. "Fluorescent Probes." In Flow Cytometry for Biotechnology. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780195183146.003.0006.

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In the jargon of cytometry, cellular characteristics, such as size, nucleic acid content, and membrane potential, are usually referred to as parameters, a term that is also used for the physical characteristics, such as absorption, light scattering, and fluorescence intensity, that are measured by cytometric instrumentation. Fluorescence, as a physical parameter, plays a key role in the detection of probes on beads for multiplexed analysis. Cellular parameters can be classed as intrinsic or extrinsic. Intrinsic cellular parameters are those that can be measured without the use of a reagent; me
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Dunn, Philip M., Paul R. Coote, and John N. Wood. "Correlative electrophysiological and biochemical studies in neuronal cell lines." In Neuronal Cell Lines. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780199633463.003.0005.

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Abstract Neuronal excitation is usually evoked by a chemical interaction with a specific membrane-associated receptor that results in an alteration in ion fluxes, a change in the transmembrane potential and a self-propagating wave of depolarization mediated by the activation of voltage-gated ion channels (1). The initial depolarizing event may occur through the direct action of a ligand on a receptor that has intrinsic channel activity, or indirectly through the medium of intracellular second messengers.
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Bradrick, Thomas D., and Jorge E. Churchich. "Time-resolved fluorescence and phosphorescence spectroscopy." In Spectrophotometry and Spectrofluorimetry. Oxford University Press, 2000. http://dx.doi.org/10.1093/oso/9780199638130.003.0007.

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In this chapter, we outline the basic theory and methodology for making time resolved fluorescence and phosphorescence measurements. We begin with a brief discussion of the intrinsic time dependence of fluorescence and phosphorescence decays, and also introduce several important photophysical concepts. Energy transfer measurements, which are important for determining molecular distances, are then addressed, followed by the convolution integral (which describes the luminescence decay that is actually observed in pulsed excitation experiments) and the relationships that are used to determine flu
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Zaza, Antonio. "Anatomy and physiology of the sinus node." In ESC CardioMed, edited by Giuseppe Boriani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0446.

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The sinoatrial node (SAN) is the dominant pacemaker structure in the mammalian heart. It is endowed with robust intrinsic automaticity, providing periodic electrical excitation with a cycle widely modulated by autonomic influences. A number of membrane channels and transporters contribute to the net membrane current supporting SAN electrical activity, whose periodicity is determined by the interplay of two oscillators termed ‘membrane’ and ‘calcium’ clock respectively. This chapter describes the structure of the SAN, the peculiarities of its electrical cycle, the nature and modulation of the u
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Zaza, Antonio. "Anatomy and physiology of the sinus node." In ESC CardioMed, edited by Giuseppe Boriani. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0446_update_001.

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The sinoatrial node (SAN) is the dominant pacemaker structure in the mammalian heart. It is endowed with robust intrinsic automaticity, providing periodic electrical excitation with a cycle widely modulated by autonomic influences. A number of membrane channels and transporters contribute to the net membrane current supporting SAN electrical activity, whose periodicity is determined by the interplay of two oscillators termed ‘membrane’ and ‘calcium’ clock respectively. This chapter describes the structure of the SAN, the peculiarities of its electrical cycle, the nature and modulation of the u
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Samiksha, Ms, Manjeet Singh Gautam, Anand Kumar, and Vijay Ghanghas. "FUSION DYNAMICS OF 48TI + 60NI REACTION." In Futuristic Trends in Physical Sciences Volume 3 Book 2. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bkps2p2ch4.

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The fusion dynamics of 48Ti + 60Ni reaction is studied through simple Wong formula and Symmetric Asymmetric Gaussian Barrier Distribution (SAGBD) model. Fusion excitation function estimated by using Wong formula is significantly deviated from experiment data at sub-barrier energies, which demonstrates significance of intrinsic channels associated with participants in fusion process. Simple Wong formula falls short of explaining data particularly at energies below the barrier but the SAGBD model explained data qualitatively as well as quantitatively for above reaction. The impacts of dominant c
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Streszczenia konferencji na temat "Intrinsic excitation"

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Ikeda, Takashi, Yuji Harata, and Keisuke Nishimura. "Intrinsic Localized Modes of Harmonic Oscillations in Pendulum-Arrays Subjected to Horizontal Excitation." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12771.

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The behavior of intrinsic localized modes (ILMs) is investigated for an array with N pendula which are connected with each other by weak, linear springs when the array is subjected to horizontal, sinusoidal excitation. In the theoretical analysis, van der Pol’s method is employed to determine the expressions for the frequency response curves for fundamental harmonic oscillations. In the numerical calculations, the frequency response curves are presented for N = 2 and 3 and compared with the results of the numerical simulations. Patterns of oscillations are classified according to the stable st
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Ghiner, A. V., and G. I. Surdutovich. "New Mechanism of Intrinsic Bistability of the Optical Media under Repetitive Pulse Excitation." In Nonlinear Dynamics in Optical Systems. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/nldos.1990.ob228.

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A new type of intrinsic bistability is proposed when usually "non-bistable" nonlinear medium shows bistability under action of a time-dependent input signal. A strict criterion for observation of such a bistability is deduced. It depends on the shape of the temporal response of the nonlinear medium under action of a separate rectangular input pulse.
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Haug, H., S. W. Koch, H. E. Schmidt, and M. Lindberg. "Soliton Structures in the Excitation due to Induced Absorption." In Instabilities and Dynamics of Lasers and Nonlinear Optical Systems. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/idlnos.1985.fc6.

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It will be shown that in a nonlinear optical medium whoes absorption coefficient increases with the excitation density (e.g., free-carrier concentration in a semiconductor or temperature) , a soliton structure in the excitation density can occur, which in the stationary case is approximately the solution of a Sine-Gordon equation. For changing light intensity the soliton wall between the highly excited front part of the crystal and the weakly excited end part can move only in discrete jumps due to the intrinsic bistability. Experimental observations of these predictions have been obtained rece
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Webb, Watt W., and Chris Xu. "Multi-photon Molecular Excitation to Illuminate Non-linear Laser Microscopy." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/up.1996.wb.1.

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Molecular excitation by two or more infra red photons simultaneously absorbed from strongly focused 100 femtosecond mode locked laser pulses provides intrinsic 3-d resolution for fluorescence microscopy and photochemical micro pharmacology in living biological cells. Confinement of non-linear excitation to the focal volume illuminated by ~1016 photons/nm2s eliminates out of focus photobleaching and photodamage and provides intrinsic 3-d resolution. To facilitate this technology new methods have developed for accurate measurements of multi-photon excitation cross sections and spectra in the abs
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Rand, S. C., and P. Xie. "Intrinsic instabilities of cooperative upconversion dynamics in lasers." In OSA Annual Meeting. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/oam.1993.wss.5.

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When the 2.8 µm erbium laser is pumped well above threshold an instability is observed at a unique pumping wavelength which causes the laser inversion to be produced by interactions among neighboring impurity ions. We show experimentally that this instability does not occur at equivalent levels over threshold when excitation is provided at wavelengths other than 1.5 µm. This behavior is compared with the results of two theoretical approaches to a description of the nonlinear dynamics, namely a rate equation and a density matrix solution. It is shown theoretically that instabilities may origina
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Ikeda, Takashi, Yuji Harata, Chongyue Shi, and Keisuke Nishimura. "Localization Phenomena in Pendulum Arrays Subjected to Vertical Excitation." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34461.

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Localization phenomena, also referred to as intrinsic localized modes (ILMs), are investigated in an N-pendulum array subjected to vertical harmonic excitation. The pendula behave nonlinearly and are connected with each other by weak linear springs. In the theoretical analysis, van der Pol’s method is employed to determine the expressions for frequency response curves for the principal parametric resonances, considering the nonlinear restoring moment of the pendula. In the numerical results, frequency response curves for N=2 and 3 are shown to examine the patterns of ILMs, and the influences o
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Wu, Li-Hua, and Yu Huang. "Analysis of intrinsic optical bistability in Tm: YSGG laser crystal pumped under avalanche excitation at around 1um." In Third International Conference on Photonics and Image in Agriculture Engineering (PIAGENG 2013), edited by Honghua Tan. SPIE, 2013. http://dx.doi.org/10.1117/12.2019449.

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Jarašiūnas, K., M. Sūdžius, J. Storasta, V. Gudelis, L. Bastienė, and R. Vasiliauskas. "Optical nonlinearities based on quenching and recovery of metastable EL2 defect in GaAs." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1994. http://dx.doi.org/10.1364/cleo_europe.1994.cthl5.

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Semi-insulating GaAs with its native mid-gap defect EL2 reveals optical optical nonlinearities of different kinds at short pulse excitation: (i) intrinsic ones based on nonequilibrium free carriers, and (ii) photorefractive ones due to space-charge redistribution. The metastable properties of EL2 open novel possibilities for direct optical modulation of quasi-Fermi level by resonant excitation and quenching of EL2 defect at low temperatures.1 This novel object—a light induced periodic structure of alternating areas with n- and p-type conductivity—needs deeper studies.
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Torkamani, Shahab, Eric A. Butcher, Michael D. Todd, and Gyuhae Park. "Damage Assessment Using Hyperchaotic Excitation and State-Space Geometry Changes." In ASME 2010 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2010. http://dx.doi.org/10.1115/smasis2010-3705.

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The current study explores the use of a steady-state hyperchaotic signal to probe a system for state-space geometry changes used for structural health monitoring applications. This is an extension of a previous chaotic interrogation technique approach that exploited the intrinsic high sensitivity of chaotic systems to subtle changes of the parameters. The enhanced technique proposed in this paper explores a novel structural excitation, namely a hyperchaotic excitation, which exhibits a chaotic behavior wherein at least two Lyapunov exponents are positive due to stretching of the phase space in
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Pumhössel, Thomas. "Investigating Modal Energy Redistributions in Mechanical Systems With Impulsive Stiffness Excitation by Using Effective Damping Measures." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85524.

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In the present contribution, alternating energy transfers across modes of vibration, induced by impulsive stiffness excitation applied at equidistant instants of time are investigated. Therefore, effective damping measures are used, and it is shown that they clearly indicate modal energy transfers and their effect on the decay rate of transient vibrations. It is demonstrated that outstanding values of the time span between adjacent impulses exist, where a strong energy transfer to higher modes, which possess enhanced damping properties, occurs. Hence, the modal redistribution of vibration ener
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