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Статті в журналах з теми "Impulsi laser"
Phipps, C. R., and M. M. Michaelis. "LISP: Laser impulse space propulsion." Laser and Particle Beams 12, no. 1 (March 1994): 23–54. http://dx.doi.org/10.1017/s0263034600007217.
Повний текст джерелаChen, Peiyu, Mostafa Hosseini, and Aydin Babakhani. "An Integrated Germanium-Based THz Impulse Radiator with an Optical Waveguide Coupled Photoconductive Switch in Silicon." Micromachines 10, no. 6 (May 31, 2019): 367. http://dx.doi.org/10.3390/mi10060367.
Повний текст джерелаموسى, عصام. "اختيار نظام لحام صفائح من النيكل بالليزر وتأثير بارامترات هذا النظام في أبعاد الدرزات اللحامية الناتجة". FES Journal of Engineering Sciences 3, № 1 (6 листопада 2008): 10. http://dx.doi.org/10.52981/fjes.v3i1.73.
Повний текст джерелаArestova, N. N., N. S. Egiyan, T. B. Kruglova, and R. V. Kalinichenko. "Prevention of IOL Laser Damage after YAG Laser Destruction in Children with Secondary Cataract." Ophthalmology in Russia 18, no. 2 (July 5, 2021): 245–52. http://dx.doi.org/10.18008/1816-5095-2021-2-245-252.
Повний текст джерелаNalisko, Mykola, Valerii Sobolev, Dmytro Rudakov, and Nataliia Bilan. "Assessing safety conditions in underground excavations after a methane-air mixture explosion." E3S Web of Conferences 123 (2019): 01008. http://dx.doi.org/10.1051/e3sconf/201912301008.
Повний текст джерелаSęk, Piotr, and Szymon Tofil. "Laser Cold Ablation as a Cutting Edge Method of Forming Silicon Wafers Used in Solar Cells." Advanced Materials Research 874 (January 2014): 113–18. http://dx.doi.org/10.4028/www.scientific.net/amr.874.113.
Повний текст джерелаPhipps, Claude. "Lisk-Broom: A laser concept for clearing space debris." Laser and Particle Beams 13, no. 1 (March 1995): 33–41. http://dx.doi.org/10.1017/s0263034600008831.
Повний текст джерелаYin, Gui Min, Zhan Guo Li, and Meng Li. "The Optimization Study about Technological Parameters of YAG Laser Precision Cutting Stainless Sheet." Advanced Materials Research 652-654 (January 2013): 2369–73. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.2369.
Повний текст джерелаLinkevičius, Linas. "Membership of NATO is the Impulse for Reforms." Lithuanian Annual Strategic Review 1, no. 1 (July 18, 2003): 7–15. http://dx.doi.org/10.47459/lasr.2003.1.1.
Повний текст джерелаYe, Ji Fei, Guang Yu Wang, and Dian Kai Wang. "Measurement of Laser Ablation Micro Impulse Using the Torsion Pendulum Interferometry." Advanced Materials Research 301-303 (July 2011): 1078–82. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.1078.
Повний текст джерелаДисертації з теми "Impulsi laser"
Empironi, Andrea. "Lavorazione laser ad impulsi di materiali metallici sottili alto-riflettenti: analisi di fattibilità." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаTani, Silvio. "Applicabilità di sorgenti laser ad impulsi lunghi nella saldatura di ottone." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.
Знайти повний текст джерелаCarughi, Giovanni. "Lavorazioni laser ad impulsi di materiali metallici sottili alto riflettenti: analisi dei risultati." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаMichau, Vincent. "Conversion de fréquence et compression d'impulsion d'un laser alexandrite par diffusion Raman stimulée intracavité." Paris 11, 1988. http://www.theses.fr/1988PA112065.
Повний текст джерелаSasoh, Akihiro, Koichi Mori, Kohei Anju, Koji Suzuki, Masaya Shimono, and Keisuke Sawada. "Diagnostics and Impulse Performance of Laser-Ablative Propulsion." American Institite of Physics, 2008. http://hdl.handle.net/2237/12005.
Повний текст джерелаSimoncig, Alberto. "The role of the electron recoiling mechanism in coherent light high-order harmonics generation: from the source to the applications." Doctoral thesis, Università degli studi di Trieste, 2010. http://hdl.handle.net/10077/3581.
Повний текст джерелаI processi di generazione di armoniche di ordine superiore (High-order Harmonic Generation o HHG) in gas inerti rappresentano, attualmente, la tecnica piu` promettente per la creazione di impulsi di luce coerente nell'estremo ultra-violetto (EUV) in una configurazione table-top. I processi HHG si basano sull'interazione non-lineare, tra impulsi laser ultra-corti, tipicamente dell'ordine della decina di femtosecondi, e atomi di gas inerti. Le caratteristiche che distinguono i processi HHG sono la loro durata temporale, che puo` essere nel dominio degli attosecondo e il fatto che l'interazione e` non perturbativa. Invece, la natura quantistica dei processi HHG implica la presenza di meccanismi di diffusione che influenzano la funzione d'onda dell'elettrone atomico coinvolto nell'interazione con il campo laser. Il ruolo della diffusione viene usualmente trascurato nella letteratura corrente, sebbene quest'ultima sia strettamente legata al controllo dell'efficienza del processo HHG e dello stato di polarizzazione dei fotoni generati. Il lavoro di tesi e` focalizzato sullo studio sperimentale e teorico/fenomenologico del ruolo dei meccanismi di diffusione, e sul loro controllo, al fine di incrementare l'efficienza e la qualita` ottica, i.e. coerenza, struttura temporale, etc., dei fotoni HHG prodotti. Gli studi e gli esperimenti condotti forniscono, in base alla nostra attuale conoscenza, la prima dimostrazione quantitativa a supporto del modello di Leweinstein. Accanto alla caratterizzazione spettrale, viene presentato uno studio accurato circa le condizioni minime necessarie a generare impulsi HHG, sempre legate al ruolo della diffusione della funzione d'onda elettronica. I risultati hanno permesso di ottenere una piu` profonda comprensione della complessa dinamica non-lineare, che sta alla base dei processi HHG. Accanto allo studio della diffusione si e` cercato di ottenere il controllo sullo stato di polarizzazione degli impulsi HHG, i quali mantengono la polarizzazione della radiazione laser utilizzata. La stessa diffusione impedisce di creare efficientemente armoniche di ordine superiore con polarizzazione ellittica (o circolare). Per risovere questo problema e` stata abbiamo sviluppato una collaborazione con il gruppo CXRO del Lawrence Berkeley National Laboratory, (Berkeley, USA), grazie al quale sono state realizzate una serie di ottiche multistrati innovative basate sul principio dell'angolo di Brewster, e disegnate appositamente per polarizzare circolarmente impulsi di luce EUV. Queste ultime sono state preliminarmente testate con successo sulla beam-line 6.3.2 del sincrotrone di Berkeley. La parte finale della tesi presenta la prima sorgente di impulsi HHG, polarizzati circolarmente utilizzando i citati multistrati. Per verificare l'efficienza e` di questi multistrati e` stato condotto un esperimento di dicroismo magnetico circolare con radiazioni EUV (EUV-MCD), unico nel sul genere, in quanto utilizza gli impulsi HHG polarizzati circolarmente per sondare il comportamento dicroico in corrispondenza delle soglie di assorbimento M di metalli ferromagnetici come Fe e Ni o delle loro leghe. Il fine ultimo e` dato dalla realizzazione di un esperimento risolto in tempo capace di utlizzare impulsi HHG circolarmente polarizzati per comprendere il processo di demagnetizzazione di sistemi ferromagnetici, sulla scala temporale del femtosecondo.
XXII Ciclo
1982
Delahaye, Hugo. "Lasers femtosecondes SWIR-MIR à fibres optiques pour la génération de rayonnements secondaires de l’EUV au MIR." Thesis, Limoges, 2020. http://www.theses.fr/2020LIMO0064.
Повний текст джерелаThe interaction between selfphase modulation and chromaticdispersion allows the installation of the solitonic regime, a solution of Schrödinger's equation in non-linear regime. In the case of subpicosecond impulses filling the condition of existence of the fundamental soliton, their largespectral bandwidth exposes them to 3rd order dispersion and Raman susceptibility. The interaction of these phenomena leads to soliton self-frequency shift. Solitonic fission and soliton self-frequency shift allow the generation of near 100 fs tunable wavelength pulses. The problem of the thesis can be summarized by the use of this phenomenon to develop high peak power sourcesat wavelengths, between 2 and 3 μm, not covered by MOPA and MOFA lasers. The design of fibres with a large modal area was necessary in order to achieve high peak power sources in the transparency band of silica. The study of the different fibres transparent in the mid-infrared was necessary as well as their integration in a MOFA sourcefor the conceptionof sources in the range [2,4;3] μm. The mastery of the solitonic regime properties allowedusthe generation of pulses of peak power close to and above MWin flexible fibres with a solid core (0.8MW to 1.7μm and 2.8MW to 2.2μm). Another result wasthe generation of soliton via a monolithic laser at wavelengths poorly covered>2.4 μm with peak powers (35kW to 2.75μm, 9kW to 3.01μm)
Miranda, Miguel Nicolau da Costa Ribeiro de. "Amplificação óptica de impulsos laser ultra-curtos." Master's thesis, Porto : edição do autor, 2006. http://hdl.handle.net/10216/64091.
Повний текст джерелаMiranda, Miguel Nicolau da Costa Ribeiro de. "Amplificação óptica de impulsos laser ultra-curtos." Dissertação, Porto : edição do autor, 2006. http://catalogo.up.pt/F?func=find-b&local_base=FCB01&find_code=SYS&request=000089810.
Повний текст джерелаAdamonis, Jonas. "High power Nd:YAG laser for pumping of OPCPA systems." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130925_093516-33211.
Повний текст джерелаDisertacija yra skirta sukurti, ištirti ir optimizuoti didelės galios Nd: YAG lazerių sistemą efektyviam moduliuotos fazės signalų optinių parametrinių stiprintuvų kaupinimui. Ypatingas dėmesys yra skiriamas Nd:YAG stiprintuvų išvadinių impulsų laikinių parametrų formavimui. Pademonstravome, kad Fabry-Pero interferometrų panaudojimas Nd:YAG dvipakopio regeneracinio stiprintuvo rezonatoriuose leidžia stiprinamų impulsų trukmę padidinti nuo ~ 60 fs iki 100 ps. Tuo tarpu išvadinių impulsų laikinės plėtros mastas bei gaubtinės moduliacijos gylis gali būti valdomas keičiant etalonų atspindžio koeficientą, o jų gaubtinės moduliacijos vertė mažiausia, kai etalonų storio santykis artimas 2. Sustiprintų impulsų kontrasto gerinimui pirmą kartą pritaikėme netiesinį antros eilės filtrą, veikiantį fundamentinės spinduliuotės poliarizacijos sukimo, išderintame antros harmonikos generatoriuje, efekto pagrindu. Tokiu būdu Nd:YAG stiprintuvuose sustiprintų impulsų kontrasto vertė pagerinta apie 102 kartų. Taip pat pademonstruota, kad Nd: YAG stiprinimo sistemos išėjime naudojant pakopinius antros harmonikos generacijos procesus, Gauso formos impulsus galima transformuoti į hipergauso impulsus. Sukurta didelės išvadinės energijos pikosekundinė Nd:YAG stiprintuvų sistema yra optiškai sinchronizuota su užduodančio femtosekundinio Yb:KGW osciliatoriaus impulsais ir turi ~ 300 mJ , 75 ps trukmės Gauso impulsų bei 100 mJ, > 100 ps trukmės hipergauso laikinės formos impulsų išvadus.
Книги з теми "Impulsi laser"
Herrmann, Joachim. Lasers for ultrashort light impulses. Amsterdam: North-Holland, 1987.
Знайти повний текст джерелаUWBUSIS 2006 (2006 Sevastopolʹ, Ukraine). The third international conference, ultrawideband and ultrashort impulse signals: UWBUSIS 2006, September 19-22, 2004, Sevastopol, Ukraine. Piscataway, NJ: IEEE, 2006.
Знайти повний текст джерелаInternational Conference on Ultrawideband and Ultrashort Impulse Signals (4th 2008 Sevastopolʹ ,Ukraine). 2008 4th International Conference on Ultrawideband and Ultrasho[r]t Impulse Signals: UWBUSIS 2008 : September 15-19, 2008, Sevastopol, Ukraine. [United States]: IEEE, 2008.
Знайти повний текст джерелаInternational Workshop on Ultrawideband and Ultrashort Impulse Signals (2nd 2004 Sevastpol, Ukraine). UWBUSIS 2004: 2004 Second International Workshop [on] Ultrawideband and Ultrashort Impulse Signals : September 19-22, 2004, Sevastopol, Ukraine. Piscataway, NJ: IEEE, 2004.
Знайти повний текст джерелаMarciak-Kozlowska, Janina, and Miroslaw Kozlowski. Fundamentos da interacção dos impulsos laser com a matéria. Sciencia Scripts, 2020.
Знайти повний текст джерелаInstitute of Electrical and Electronics. Uwbusis 2004: 2004 Second International Workshop [On] Ultrawideband and Ultrashort Impulse Signals: September 19-22, 2004, Sevastopo. Institute of Electrical & Electronics Enginee, 2004.
Знайти повний текст джерелаHammond, Christopher J., Marc N. Potenza, and Linda C. Mayes. Development of Impulse Control, Inhibition, and Self-Regulatory Behaviors in Normative Populations across the Lifespan. Edited by Jon E. Grant and Marc N. Potenza. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780195389715.013.0082.
Повний текст джерелаRichardson, Amanda. Gender and Space in the Later Middle Ages Past, Present, and Future Routes. Edited by Christopher Gerrard and Alejandra Gutiérrez. Oxford University Press, 2018. http://dx.doi.org/10.1093/oxfordhb/9780198744719.013.33.
Повний текст джерелаFood and drink - February 2000: Bottled lager, cake bars and cereal bars, dashboard dining, frozen desserts, impulse ice cream. London: Mintel International Group, 2000.
Знайти повний текст джерелаTurner, Martin R., Matthew C. Kiernan, and Kevin Talbot. Technical advances in neuroscience. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199658602.003.0001.
Повний текст джерелаЧастини книг з теми "Impulsi laser"
Memišević, Lejla. "Von einem Lager ins nächste." In Kosmopolitische Impulse, 65–67. Vienna: Springer Vienna, 2010. http://dx.doi.org/10.1007/978-3-211-99152-7_9.
Повний текст джерелаFritz, H. M. "PIV applied to landslide generated impulse waves." In Laser Techniques for Fluid Mechanics, 305–20. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-08263-8_18.
Повний текст джерелаIts, Alexander R., and Victor Yu Novokshenov. "The dynamics of electromagnetic impulse in a long laser amplifier." In Lecture Notes in Mathematics, 205–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/bfb0076675.
Повний текст джерелаYu, X. L., T. Ohtani, A. Sasoh, S. Kim, N. Urabe, and I. S. Jeung. "Impulse characteristics of laser-induced blast wave in monoatomic gases." In Shock Waves, 979–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/978-3-540-27009-6_149.
Повний текст джерелаEchim, Marius M., and Joseph Lemaire. "The impulsive penetration mechanism: Advances in the numerical and experimental verification." In Earth's Low-Latitude Boundary Layer, 169–77. Washington, D. C.: American Geophysical Union, 2003. http://dx.doi.org/10.1029/133gm17.
Повний текст джерелаXie, Xinhua, Katharina Doblhoff-Dier, Huailiang Xu, Stefan Roither, Markus Schöffler, Daniil Kartashov, Sonia Erattupuzha, et al. "Controlling Fragmentation Reactions of Polyatomic Molecules with Impulsive Laser Alignment." In Springer Proceedings in Physics, 138–42. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13242-6_33.
Повний текст джерелаKobayashi, Takayoshi. "Photo-Impulsive Reactions in the Electronic Ground State without Electronic Excitation." In Ultrashort Pulse Lasers and Ultrafast Phenomena, 567–75. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9780429196577-78.
Повний текст джерелаKumaran, V., A. Vanav Kumar, and J. Sarat Chandra Babu. "Impulsive Boundary Layer Flow Past a Permeable Quadratically Stretching Sheet." In Nonlinear Science and Complexity, 191–98. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-90-481-9884-9_24.
Повний текст джерелаIwakawa, A., Z. Wang, H. Tsuruta, T. Shoda, B. Wang, and A. Sasoh. "Effects of Negative Overpressure Phase of a Laser Breakdown-Induced Blast Wave on Impulse Characteristics." In 30th International Symposium on Shock Waves 2, 1339–43. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-44866-4_95.
Повний текст джерелаShi, Nan, Liang Xia, and Ignas G. Niemegeers. "A Link Layer Protocol for Self-Organizing Ultra Wide Band Impulse Radio Networks." In Challenges in Ad Hoc Networking, 21–30. Boston, MA: Springer US, 2006. http://dx.doi.org/10.1007/0-387-31173-4_3.
Повний текст джерелаТези доповідей конференцій з теми "Impulsi laser"
Ping, Zhu, Liya Hou, and Weiyi Zhang. "The Measurement on Micro-Jet Impulse Based on Laser Interferometer." In ASME 2009 Fluids Engineering Division Summer Meeting. ASMEDC, 2009. http://dx.doi.org/10.1115/fedsm2009-78030.
Повний текст джерелаMorgan, Michael A. "Scale model ultrawideband impulse radar." In OE/LASE'93: Optics, Electro-Optics, & Laser Applications in Science& Engineering, edited by Roger S. Vickers. SPIE, 1993. http://dx.doi.org/10.1117/12.145528.
Повний текст джерелаEvans, John A., Mojtaba Oghbaei, and Kurt S. Anderson. "Modeling and Simulation of a Laser-Powered Lightcraft Using Advanced Simulation Tools." In ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/detc2005-84465.
Повний текст джерелаVenna, Suresh V., and Y. J. Lin. "PZT-Actuated In-Flight Deicing With Simultaneous Shear and Impulse Forces." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61554.
Повний текст джерелаRalston, James M. "System analysis of ultrawideband instrumentation radars: impulse versus stepped-chirp approaches." In OE/LASE'93: Optics, Electro-Optics, & Laser Applications in Science& Engineering, edited by Roger S. Vickers. SPIE, 1993. http://dx.doi.org/10.1117/12.145520.
Повний текст джерелаRosen, D. I., C. J. Rollins, and M. Gauthier. "Experimental studies in ground to orbit laser propulsion." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.tuz6.
Повний текст джерелаSnyder, Wendy J., Wei-Qiang Shi, Sandor G. Vari, and Warren S. Grundfest. "Comparative study of pulsed Ho:YAG versus Tm:YAG: impulse-induced pressure in porcine aorta." In OE/LASE'93: Optics, Electro-Optics, & Laser Applications in Science& Engineering, edited by Steven L. Jacques and Abraham Katzir. SPIE, 1993. http://dx.doi.org/10.1117/12.147656.
Повний текст джерелаNiino, Masayuki, Viliam Kmetik, Tatsuo Kumagai, Akio Moro, Seishiro Kibe, and Kazuo Imasaki. "Impulse generated from laser targets." In Advanced High-Power Lasers and Applications, edited by Claude R. Phipps and Masayuki Niino. SPIE, 2000. http://dx.doi.org/10.1117/12.376983.
Повний текст джерелаSasoh, Akihiro, Toshihiro Ogawa, Sukyum Kim, Takehiro Kawahara, In-Seuck Jeung, Xilong Yu, and Toshiro Ohtani. "Laser Impulse Generation in Flight." In 42nd AIAA Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/6.2004-650.
Повний текст джерелаSchall, Wolfgang O., Hans-Albert Eckel, Wilhelm Mayerhofer, Wolfgang Riede, and Eberhard Zeyfang. "Comparative lightcraft impulse measurements." In International Symposium on High-Power Laser Ablation 2002, edited by Claude R. Phipps. SPIE, 2002. http://dx.doi.org/10.1117/12.482046.
Повний текст джерелаЗвіти організацій з теми "Impulsi laser"
Fournier, K. Investigation of Laser Coupling for Impulse Generation. Office of Scientific and Technical Information (OSTI), August 2012. http://dx.doi.org/10.2172/1053689.
Повний текст джерелаMcKay, J. A., and P. M. Laufer. Survey of Laser-Produced Pressure and Impulse Data. Fort Belvoir, VA: Defense Technical Information Center, January 1988. http://dx.doi.org/10.21236/ada197313.
Повний текст джерелаHayes, S., and S. Novell. Direct Laser Impulse (DLI) System Alignment Requirements Engineering Project. Office of Scientific and Technical Information (OSTI), June 2022. http://dx.doi.org/10.2172/1875226.
Повний текст джерелаD'Souza, Brian, and Andrew Ketsdever. Direct Impulse Measurements of Ablation Processes from Laser-Surface Interactions. Fort Belvoir, VA: Defense Technical Information Center, May 2005. http://dx.doi.org/10.21236/ada435844.
Повний текст джерелаDahlbacka, G. 2 dimensional analysis of a NOVETTE laser generated stress-impulse experiment. Office of Scientific and Technical Information (OSTI), October 1988. http://dx.doi.org/10.2172/6159373.
Повний текст джерелаTownsend, J. K., William M. Lovelace, and Arjun Bharadwaj. Medium Access and Data Link Layer Protocols for Impulse Radio: Covertness, Timing, and Chip Discrimination. Fort Belvoir, VA: Defense Technical Information Center, March 2003. http://dx.doi.org/10.21236/ada416018.
Повний текст джерелаGalili, Naftali, Roger P. Rohrbach, Itzhak Shmulevich, Yoram Fuchs, and Giora Zauberman. Non-Destructive Quality Sensing of High-Value Agricultural Commodities Through Response Analysis. United States Department of Agriculture, October 1994. http://dx.doi.org/10.32747/1994.7570549.bard.
Повний текст джерела