OPERATIONAL CHARACTERISTICS OF NANO-ELECTRO-OPTO-MECHANICAL TRANSDUCER

Abstract

In this dissertation, we theoretically investigate the dynamics of a Nano Electro Opto-Mechanical System (NEOMS) in the presence of a strong pump eld and a weak probe eld. A Fabry-Perot cavity, with a xed and partially transparent mirror at one end and a completely re ecting movable mirror MR1 at the other end makes up the system. The Opto-mechanical coupling connects MR1 to the intra-cavity eld. The cavity also has a second moveable micro-resonator, MR2, which is electro-statically connected to MR1 via Coulomb coupling. To selectively pump the mechanical res onators (MRs), mechanical driving elds ε1 and ε2 are used. In NEOMS, a non-linear phenomena known as Four-Wave Mixing (FWM) is exam ined in the probe transmission eld. This non-linearity is generated by the radiation pressure force of the intra-cavity eld, produces the FWM which is analogous to the non-linear Kerr e ect in optical bers, which creates non-linear susceptibility in the medium. This non-linear e ect is known as the E ective Kerr E ect, and is responsible for Four-Wave Mixing. FWM is reported in the probe transmission eld by selectively driving the me chanical resonators MR1 and MR2, which provides additional control of FWM. When the amplitudes and phases of the external driving elds are changed, the FWM shows consistent variations. The results reveal that changing the amplitudes and phases of external driving elds can yield signi cant suppression and ampli cation in the FWM peaks.