Splitting of microcavity degenerate modes in rotating photonic crystals—the miniature optical gyroscopes
نویسندگان
چکیده
A manifestation of the Sagnac effect in a rotating photonic crystal that contains a microcavity with degenerate modes is explored. It is shown that generally rotation can cause the resonance frequency to split into M different frequencies, where M is the order of the stationary-system mode degeneracy. The results are derived using a new rotation-induced eigenvalue theory that holds for any two-dimensional or three-dimensional rotating microcavity with mode degeneracy. Comparison with exact numerical simulations of the rotating system is provided. Miniature optical gyroscopes are discussed. © 2006 Optical Society of America OCIS codes: 120.5790, 230.5750.
منابع مشابه
Optical Microcavity: Sensing down to Single Molecules and Atoms
This review article discusses fundamentals of dielectric, low-loss, optical micro-resonator sensing, including figures of merit and a variety of microcavity designs, and future perspectives in microcavity-based optical sensing. Resonance frequency and quality (Q) factor are altered as a means of detecting a small system perturbation, resulting in realization of optical sensing of a small amount...
متن کاملRotating photonic crystals: a medium for compact optical gyroscopes.
The effect of rotation of a photonic crystal that contains a set of microcavities is studied using the formulation of electrodynamics in rotating media. A new manifestation of the Sagnac effect is observed. It is shown that the phase shift or frequency difference between rotation-codirected and rotation-counterdirected propagations depends on a set of parameters not previously reported. The use...
متن کاملMagneto-optical defects in two-dimensional photonic crystals
We analyze the properties of magneto-optical defect states in two-dimensional photonic crystals. With outof-plane magnetization, the magneto-optical coupling splits doubly-degenerate TE states into two counter-rotating modes at different frequencies. The strength of magneto-optical coupling strongly depends on the spatial overlap of the cavity domain structures and the cross product of the moda...
متن کاملA New Method for Calculating Propagation Modes of a One Dimensional Photonic Crystal (RESEARCH NOTE)
Photonic band-gap (PBG) crystals offer new dimensions of freedom in controlling propagation of electromagnetic waves. The existence of stop-bands in the transmission characteristic of these crystals makes them a suitable element for the realization of many useful microwave and optical subsystems. In this paper, we calculate the propagation constant of a one-dimensional (1-D) photonic crystal by...
متن کاملThe Electrodynamics of Rotating Slow-Light Waveguides with Structural Disorder – Optical Gyroscopes, Degeneracy Splitting, and the Creation of a Dead-Zone
The effect of structural disorder on the electrodynamics of slowly and rigidly rotating coupled resonators circular waveguide is studied, in the rotating system rest-frame. When stationary and ideal, this waveguide supports degenerate modes. It is shown that slow rigid rotation as well as structural disorder can be viewed as two competing symmetry-breaking events. Hence both cause splitting of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006