Porous Silicon–Based Microring Resonator for Temperature and Cancer Cell Detection

Abstract

In this article, a microring resonator sensor based on porous silicon is proposed for temperature and cancer cell detection, simultaneously. The porous behavior of silicon with a large internal surface area allows external materials to interact directly with the guided modes. The resonance wavelength in the transmission spectrum of the microring resonator is very sensitive to external environmental properties such as refractive index and temperature. The transmission characteristics of the proposed sensor were numerically determined by full vectorial finite element analysis. The achieved maximum sensitivity of the proposed sensor with optimized parameters was 150 pm/°C for an operational temperature range of 20–100°C and 284.0306 nm/RIU for operational cancer cell detection, respectively. The results presented here suggest the microring resonator sensor can be used in the fields of environment sensing, temperature sensing, chemical sensing, and biosensing.

Ge2Sb2Te5 patch embedded ring resonator for optical switching

“…The ring resonator confines light in a ring-shaped waveguide and allows it to circulate indefinitely 46 . Various materials have been explored for optical switching and ring resonator applications that include silicon (Si), 47 silicon nitride (Si3N4), 48 lithium niobate (LiNbO3), 49 gallium arsenide (GaAs), 50 zinc oxide (ZnO), 51 and aluminum nitride (AlN) 52 , 53 . The silicon substrate is preferred over other materials due to its low intrinsic absorption, high RI, and single-mode operation that confines the light within the ring resonator and enhances its performance.…”

An exploratory simulation study and prediction model on human brain behavior and activity using an integration of deep neural network and biosensor Rabi antenna

“…EEG signals are in the range of around 4 Hz to 100 Hz. Microring resonators have applications in various fields such as sensors, quantum communication, teleportation, and black hole [6] , [7] . In addition, micro-electromechanical systems (MEMS) technology has shown great potential for various kinds of sensors [8] , [9] .…”

Sensing Characteristics of a Three-Ring Grating Slit Micro Ring Resonator

“…Therefore, the device structure based on SOI platform has become a research hotspot in the field of silicon-based photonic integration and optoelectronic integration. Due to its high quality factor and low loss, the micro ring resonator (MRR) based on SOI is used to produce various optical devices, such as filters [3], optical division multiplexer [4], optical switch [5], sensor [6], etc., which has a wide range of applications in environmental monitoring, homeland security, biochemistry and medical treatment [7,8].Because the transmission lines of traditional micro ring resonators are symmetrical Lorentz type [9], the quality factor and sensitivity are low. By designing a new structure, the transmission line can be changed from Lorentz type to Fano type, or the EIT-Like effect can be generated to improve the quality factor, extinction ratio (ER) and sensitivity of the micro ring resonator [10].…”