Longitudinal Mode Number Estimation of External Cavity Diode Laser Using Dual Periodic Grating for Optical Profiler System [PDF]
SensorsThe concept of an optical profiler based on optical resonance was proposed, highlighting the initial requirements for mode number estimation. We proposed a method for estimating the longitudinal mode number of a laser propagating in an external cavity ...
Masaki Michihata +3 more
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Research on the Lift-off Effect of Receiving Longitudinal Mode Guided Waves in Pipes Based on the Villari Effect [PDF]
Sensors, 2016 The magnetostrictive guided wave technology as a non-contact measurement can generate and receive guided waves with a large lift-off distance up to tens of millimeters.
Jiang Xu, Yong Sun, Jinhai Zhou
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A Longitudinal Mode Electromagnetic Acoustic Transducer (EMAT) Based on a Permanent Magnet Chain for Pipe Inspection [PDF]
Sensors, 2016 A new electromagnetic acoustic transducer (EMAT) design, employing a special structure of the permanent magnet chain, is proposed to generate and receive longitudinal guided waves for pipe inspection based on the magnetostriction mechanism.
Ming Cong, Xinjun Wu, Chunqiao Qian
doaj +2 more sources
Tunable Single-Longitudinal-Mode High-Power Fiber Laser
International Journal of Optics, 2012 We report a novel CW tunable high-power single-longitudinal-mode fiber laser with a linewidth of ∼9 MHz. A tunable fiber Bragg grating provided wavelength selection over a 10 nm range. An all-fiber Fabry-Perot filter was used to increase the longitudinal
Jonas K. Valiunas, Gautam Das
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Longitudinal-torsional complex-mode ultrasonic actuator for vibration-assisted drilling of CFRP
, 2023 Carbon-fiber-reinforced plastic (CFRP) composites are intensively used in aircraft and aerospace industry thanks to their superior properties. Comparing to the conventional drilling (CD), vibration-assisted drilling (VAD) is a novel machining technique ...
Xiaoxue Wang (311457) +2 more
core +7 more sources
Nonlinear longitudinal/transversal modal interactions in highly extensible suspended cables [PDF]
, 2008 Recent research literature mostly deals with nonlinear resonant dynamics of low-extensible cables involving transversal modes. Herein, we aim to investigate geometrically nonlinear longitudinal/transversal modal interactions in highly extensible ...
Rega, G., Srinil, N.
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The reasons for attrition: we (still) haven't got a clue [PDF]
, 2010 This paper describes a small survey (attrition survey) undertaken to ascertain reasons of attrition and non-response in questionnaire responses from student participants as part of a larger longitudinal survey (longitudinal study). Due to difficulties in
Harte, VA, Stewart, J
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Photonics, 2023 We create a rate equation theoretical model of a continuous-wave end-pumped Pr3+:YLF SLM laser that characterizes the output properties of a single-longitudinal-mode (SLM) green laser. After inserting two Fabry–Perot (F–P) etalons with thicknesses of 0.3
Weicheng Dai +5 more
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Longitudinal effects of social background on educational and occupational pathways within early and strong school tracking [PDF]
, 2013 peer reviewedTransitions from education to work are subject to person-related factors and institutional opportunity structures. Life course research increasingly focuses on longitudinal effects of social background on educational and occupational ...
Bergman, Manfred Max +2 more
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Photonics, 2023 All-fiber, polarization maintaining, narrow-bandwidth, Yb-doped fiber lasers with randomly distributed feedback operated near 976 nm were realized for the first time.
Danila A. Davydov +9 more
doaj +1 more source