Generalized ray matrix for spherical mirror reflection and its application in square ring resonators and monolithic triaxial ring resonators

Topology optimization of dielectric ring resonators in application on laser resonators and optical sensors

Micro-ring resonators have tremendous potential in optics with applications to low threshold microcavity lasers and optical sensors. The optical modes, set up in these devices by emissions from input light, form circular continuous closed beams governed by internal reflections along the boundary of the resonator. The circular mode shape is called a whispering-gallery (WG) mode. Optical resonato...

Two-curve-shaped biosensor using photonic crystal nano-ring resonators

We design a novel nano-ring resonator using two-dimensional photonic crystal (2D-PhC), for bio-sensing applications. The structure of biosensor is created by two-curve-shaped ring resonator which sandwiched by two waveguides. These are configured by removing one row of air holes. The refractive index of sensing hole is changed by binding an analyte. Hence, intensity of the transmission spectrum...

Tunable Superconducting Split Ring Resonators

Porous Polymer Waveguides and Ring Resonators CNF

Label-free optical biosensors are particularly interesting because of their ability to tightly confine light while avoiding complications often associated with label dependent detection. However, many traditional optical biosensors often store the majority of their optical energy in the waveguide core, leaving only the evanescent field to interact with biomolecules. In this work we develop nano...

Widely Tunable Coupled-ring Reflector Laser Diode Consisting of Square Ring Resonators

Suhyun Kim, Young Tae Byun, Doo-Gun Kim, Nadir Dagli, and Youngchul Chung* Department of Electronics and Communication Engineering, Kwangwoon University, Seoul 139-701, Korea Intelligent System Research Division, Korea Institute of Science and Technology, Seoul 136-791, Korea Photonic Device Team, Korea Photonics Technology Institute, Gwangju 500-779, Korea Electrical and Computer Engineering D...