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Synchronization in Coupled Opto-Thermal Silicon Mems Limit Cycle Oscillators.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Synchronization in Coupled Opto-Thermal Silicon Mems Limit Cycle Oscillators./
Author:	Bhaskar, Aditya.
Description:	1 online resource (139 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 84-03, Section: B.
Contained By:	Dissertations Abstracts International84-03B.
Subject:	Mechanics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29322794click for full text (PQDT)
ISBN:	9798351415758

Synchronization in Coupled Opto-Thermal Silicon Mems Limit Cycle Oscillators.
Bhaskar, Aditya.

Synchronization in Coupled Opto-Thermal Silicon Mems Limit Cycle Oscillators. - 1 online resource (139 pages)

Source: Dissertations Abstracts International, Volume: 84-03, Section: B.

Thesis (Ph.D.)--Cornell University, 2022.

Includes bibliographical references

Micro- and nano-scale oscillators exhibit nonlinear phenomena such as limit cycle oscillations, self-synchronization, and frequency entrainment to an external drive. In this work, we chart the behavior of silicon MEMS oscillators that are nominally 40 µm long and 205 nm thick, mechanically coupled, and opto-thermally driven by a continuous-wave helium-neon laser. Experimentally, we demonstrate synchronization in pairs of coupled oscillators which result in reduced frequency fluctuations in the devices. Irregular oscillations are observed at higher input laser powers and are explained by the existence of bistable states and sensitive dependence on initial conditions in the corresponding lumped-parameter mathematical model. The key parameters studied in this work are frequency detuning, coupling level, and the input laser power. Using numerical and analytical perturbation methods, we extend the analysis to an array of eight coupled oscillators and study self-synchronization and frequency entrainment to an external inertial drive. Key contributions include the mapping of the dynamical behavior of clamped-clamped silicon structures widely used in MEMS sensors, actuators, and time-keeping devices, and the use of a third-order model to give numerical and theoretical boundaries for self-synchronization, entrainment, and bistability.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798351415758Subjects--Topical Terms:

525881
Mechanics.
Subjects--Index Terms:

Continuous-wave laserIndex Terms--Genre/Form:

542853
Electronic books.

Synchronization in Coupled Opto-Thermal Silicon Mems Limit Cycle Oscillators.
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300 $a 1 online resource (139 pages)
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500 $a Source: Dissertations Abstracts International, Volume: 84-03, Section: B.
500 $a Advisor: Zehnder, Alan.
502 $a Thesis (Ph.D.)--Cornell University, 2022.
504 $a Includes bibliographical references
520 $a Micro- and nano-scale oscillators exhibit nonlinear phenomena such as limit cycle oscillations, self-synchronization, and frequency entrainment to an external drive. In this work, we chart the behavior of silicon MEMS oscillators that are nominally 40 µm long and 205 nm thick, mechanically coupled, and opto-thermally driven by a continuous-wave helium-neon laser. Experimentally, we demonstrate synchronization in pairs of coupled oscillators which result in reduced frequency fluctuations in the devices. Irregular oscillations are observed at higher input laser powers and are explained by the existence of bistable states and sensitive dependence on initial conditions in the corresponding lumped-parameter mathematical model. The key parameters studied in this work are frequency detuning, coupling level, and the input laser power. Using numerical and analytical perturbation methods, we extend the analysis to an array of eight coupled oscillators and study self-synchronization and frequency entrainment to an external inertial drive. Key contributions include the mapping of the dynamical behavior of clamped-clamped silicon structures widely used in MEMS sensors, actuators, and time-keeping devices, and the use of a third-order model to give numerical and theoretical boundaries for self-synchronization, entrainment, and bistability.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Mechanics. $3 525881
650 4 $a Nanotechnology. $3 526235
650 4 $a Applied mathematics. $3 2122814
653 $a Continuous-wave laser
653 $a Frequency detuning
653 $a Linear coupling
653 $a Microelectromechanical systems
653 $a Nonlinear dynamics
653 $a Synchronization
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690 $a 0364
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Cornell University. $b Theoretical and Applied Mechanics. $3 3550391
773 0 $t Dissertations Abstracts International $g 84-03B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29322794 $z click for full text (PQDT)