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| 1 | Going beyond 1000000 resolved points in a Brillouin distributed fiber sensor: theoretical analysis and experimental demonstration显示文摘Distributed fiber sensing possesses the unique ability to measure the distributed profile of an environmental quantity along many tens of kilometers with spatial resolutions in the meter or even centimeter scale.This feature enables distributed sensors to provide a large number of resolved points using a single optical fiber.However,in current systems,this number has remained constrained to a few hundreds of thousands due to the finite signal-to-noise ratio(SNR)of the measurements,which imposes significant challenges in the development of more performing sensors.Here,we propose and experimentally demonstrate an ultimately optimized distributed fiber sensor capable of resolving 2100000 independent points,which corresponds to a one-orderof-magnitude improvement compared to the state-of-the-art.Using a Brillouin distributed fiber sensor based on phase-modulation correlation-domain analysis combined with temporal gating of the pump and time-domain acquisition,a spatial resolution of 8.3 mm is demonstrated over a distance of 17.5 km.The sensor design addresses the most relevant factors impacting the SNR and the performance of medium-to-long range sensors as well as of sub-meter spatial resolution schemes.This step record in the number of resolved points could be reached due to two theoretical models proposed and experimentally validated in this study:one model describes the spatial resolution of the system and its relation with the sampling interval,and the other describes the amplitude response of the sensor,providing an accurate estimation of the SNR of the measurements. | Andrey Denisov Marcelo A Soto Luc Thévenaz | 2016 | Light(Science & Applications)2016，5，1： | 11 |
| 2 | Effects of Substrate Pulse Bias Duty Cycle on the Microstructure and Mechanical Properties of Ti–Cu–N Films Deposited by Magnetic Field-Enhanced Arc Ion Plating显示文摘Ti–Cu–N films were deposited on 316 L stainless steel substrates by magnetic field-enhanced arc ion plating.The effect of substrate pulse bias duty cycle on the chemical composition,microstructure,surface morphology,mechanical and tribological properties of the films was systemically investigated.The results showed that,with increasing the duty cycle,Cu content decreases from 3.3 to 0.58 at.%.XRD results showed that only Ti N phase is observed for all the deposited films and the preferred orientation transformed from Ti N(200) to Ti N(111) plane with the increase in duty cycle.The surface roughness and deposition rate showed monotonous decrease with increasing the duty cycle.The residual stress and hardness firstly increase and then decrease afterwards with the increase in duty cycle,while the variation of critical load shows reverse trend.Except for the film with duty cycle of 10%,others perform the better wear resistance. | Sheng-Sheng Zhao Yan-Hui Zhao Lv-Sha Cheng Vladimir Viktorovich Denisov Nikolay Nikolaevich Koval Bao-Hai Yu Hai-Juan Mei | 2017 | Acta Metallurgica Sinica(English Letters)2017，30，2： | 4 |
| 3 | 台式液相色谱静电场轨道阱质谱联用系统显示文摘本文概述了基于具有卓越性能的Thermo Scientific Orbitrap静电场轨道阱质谱仪的新型Exactive台式质谱仪,对其主要的特性包括仪器设计、分析参数及应用进行了介绍。 | Andreas Wieghaus Alexander Makarov Ulf Froehlich Markus Kellmann Eduard Denisov Oliver Lange | 2011 | 分析测试学报2011，30，5： | 3 |
| 4 | Shear strengths of fissures in ledge rock before and after grouting显示文摘 | P. D. Evdokimov A. N. Adamovich L. P. Fradkin V. N. Denisov | 1970 | Hydrotechnical Construction1970，，3： | 1 |
| 5 | Linear theory of a wide-band Gyro-TWT amplifier using spiral waveguide 显示文摘 | COOKE S J DENISOV G G | 1998 | IEEE Transactions on Plasma Science1998，26，3： | 1 |
| 6 | Experimental setup for studying induced backward scattering of microwaves by a subnanosecond high-current electron beam显示文摘 | Denisov G G Ginzburg N S Shpak V G | 2006 | IEEE Trans on Plasma Science2006，34，5： | 1 |
| 7 | Effect of intermolecular hydrogen bonding and proton transfer on fluorescence of salicylic acid 显示文摘 | Denisov G S Golubev N S Schreiber V M | 1997 | Journal of Molecular Structure1997，，： | 1 |
| 8 | FEL's with Bragg reflection resonators:cyclotron autoresonance masers vesus ubitrons显示文摘 | Bratman V L Denisov G G Ginzburg N S | | 0，，03： | 1 |
| 9 | Corrugated cylindrical resonator for short wavelength relativistic microwave oscillators显示文摘 | Denisov G G Reznikov M G | | 0，，05： | 1 |
| 10 | Probing the deuteron structure at small NN distances by antiptoton-deuteron annihilation显示文摘 | Denisov O Y Kuksa S D Lykasov G I | 1999 | Phys Lett B1999，158，： | 1 |
| 11 | Tail Asymptotics for the Supremum of a Random Walk when the Mean Is not Finite显示文摘 | Denis Denisov Serguei Foss Dima Korshunov | 2004 | Queueing Systems (-)2004，，1： | 1 |
| 12 | Homotropic coop- erativity of monomeric cytochrome P450 3A4 in a nanoscale native bilayer environment显示文摘 | Baas BJ Denisov IG Sligar SG | 2004 | Arch Bio- chem Biophys2004，430，2： | 1 |
| 13 | High pressure transformation of single-crystal graphite to form molecular car bon-onions 显示文摘 | Blank V Denisov V Kirichenko A | 2007 | Nanotechnology2007，18，34： | 1 |
| 14 | Cooper- ativity in cytochrome P450 3A4 linkages in sub- strate binding, spin state, uncoupling, and product formation显示文摘 | Denisov IG Baas BJ Grinkova YV | 2007 | J Biol Chem2007，282，10： | 1 |
| 15 | Ion Milling-assisted Study of Defect Structure of HgCdTe Films Grown by Liquid Phase Epitaxy 显示文摘 | Izhnin I I Denisov I A Smirnova N A | 2010 | Opto-Electronics Review2010，18，3： | 1 |
| 16 | A fiber-optic microbending temperature sensor显示文摘 | V A Sedov N A Rybal chenko | 2005 | Instruments and Experimental Techniques2005，48，5： | 1 |
| 17 | Spot weld analysis with 2D ultrasonic arrays显示文摘 | DENISOV A A | 2004 | Journal of Research of the National Institute of Standards and Technology2004，109，2： | 1 |
| 18 | Selective Excitation Of High-Order Modes In Circular Wave Guide显示文摘 | ALEKSANDROV N L CHIRKOV A V DENISOV G G | | 0，，09： | 1 |
| 19 | Oversized Ka-Band Traveling-Wave Window for a High-Power Transmission显示文摘 | Bogdashov A Denisov G Lukovnikov D | 2006 | IEEE Trans Microw Theory Tech2006，54，12： | 1 |
| 20 | Millimeter-wave HF relativistic electron oscillators显示文摘 | BRATMAN V L DENISOV G G OFITSEROV M M | | 0，，01： | 1 |
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