Opto-Mechanical Oscillations in Fabry-Perot Cavity With Two Mechanical Degrees of Freedom

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Golshani Gharyeh Ali, Mojtaba | 2009

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 39740 (04)
University: Sharif University of Technology
Department: Physics
Advisor(s): Bahrampour, Alireza
Abstract:
The coupling of optical and mechanical degrees of feedom via radiation pressure has been a subject of early research in the context of gravitational wave detection. Recent experimental advances have allowed studying the modifications of mechanical dynamics provided by radiation pressure. First, this thesis reviews the consequences of dynamic back-action in optical microcavities with mechanical degree of feedom, and presents a unified treatment of its two manifestations: the parametric instability (mechanical amplification or oscillation) and radiation pressure back-action cooling. Then, by considering the Fabry-Perot cavity with two movable mirrors, and using Multi-Reflection Method, we survey the consequences of existence of two mechanical modes in such a system. In addition to several modifications to some of the results of dynamic back-action and calculation of cavity delay time, coupling of the motion of mirrors is another consequence of this formalism which can result in the entanglement of these two mechanical modes in quantum limit
Keywords:
Optomechanical Coupling ; Dynamic Back-Actio ; Fabry Perot Cavity ; Fabry-Perot Cavity With Two Movable Mirrors

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