Normal Mode Splitting in a Cavity Optomechanical System with a Cubic Anharmonic Oscillator |
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Authors: | Hao Hongmiao Huang Sumei Chen Aixi |
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Institution: | 1.Department of Physics, Zhejiang Sci-Tech University, Hangzhou, 310018, China ; |
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Abstract: | The strong coupling between a macroscopic mechanical oscillator and a cavity field is essential for many quantum phenomena in a cavity optomechanical system. In this work, we discuss the normal mode splitting in a cavity optomechanical system with a cubic nonlinear movable mirror. We study how the mechanical nonlinearity affects the normal-mode splitting behavior of the movable mirror and the output field. We find that the mechanical nonlinearity can increase the peak separation in the spectra of the movable mirror and the output field. We also find that the heights and linewidths of the two peaks are very sensitive to the mechanical nonlinearity. |
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