Summaries by Inventor Ozdemir, Sahin

Chaotic Optomechanical Resonators
Ozdemir, Sahin ; Yang, Lan
T-016229

— Background: Chaos is considered hypersensitive to conditions of a system and is often thought to be unpredictable and difficult to explain. However, recent work has shown that chaos can be added as noise to improve amplification of weak signals through stochastic resonance. Stochastic resonance has …

Detecting and Measuring Single Nanoparticles & Molecules with a Tapered Optical Fiber CIP
Ozdemir, Sahin ; Yang, Lan ; Zhu, Jiangang
T-011617

— The invention describes an instrument for detecting single particles, and measuring their properties (size or mass). The device contains only a tapered optical fiber. A laser diode as the light source and a photo-detector to measure the light intensity are also needed to complete the sensing system.…

Single Nanoparticle Detection by Mode Splitting in Active Microresonators using Heterodyne Technique
He, Lina ; Ozdemir, Sahin ; Yang, Lan
T-010140

— Dr. Lan Yang, Professor at Washington University in St. Louis, is a pioneer in the field of micro- and nano photonics. She recently developed a uniquely sensitive and versatile particle detector using whispering gallery mode (WGM) optical microresonators. Realtime detection and accurate sizing of la…

Parity-Time Symmetric Whispering-Gallery-Mode Microcavities Sensor
Ozdemir, Sahin ; Peng, Bo ; Yang, Lan
T-014053

— A non-reciprocal transmission device based on PT symmetry was previously theorized but never before constructed and shown to work at useful optical wavelengths. The new structure allows creation of the miniaturized optical isolation function without use of the century+ known Faraday effect. Optica…

Ultra High Quality Tunable Add-Drop Filter Based on Active Whispering Gallery Mode resonators
Monifi, Faraz ; Ozdemir, Sahin ; Yang, Lan
T-013642

— Whispering Gallery Mode (WGM) Resonators have been shown to have unique properties holding great promise for use in optical communication systems. Recent innovations from Dr. Lan Yang’s Nano-Photonics lab at Washington University in St Louis bring the promise much closer to reality. In particu…

Robust Suite of Technologies Offers Significant Enhancements for Whispering Gallery Mode (WGM) Microresonator Sensors and Laser Systems
Chen, Da-Ren ; He, Lina ; Ozdemir, Sahin ; Yang, Lan ; Zhu, Jiangang
T-009642

— WGM microresonators are an immature technology with room for improvement Microresonators are optical devices that are an important component of microlasers used in optoelectronics, data communications, and sensing. Most microresonators are WGM type, which confine light to a very small volume for si…