Proceedings ArticleDOI
Ultrasensitive on-chip photonic crystal nanobeam sensor using optical bistability
Qimin Quan,Frank Vollmer,Ian B. Burgess,Parag B. Deotare,Ian W. Frank,Sindy,K. Y. Tang,Rob Illic,Marko Loncar +8 more
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TLDR
In this article, an ultrasound-sensitive nonlinear cavity sensing method is proposed and demonstrated, in which the detection limit is not bounded by the quality factor of the cavity, and 10mg/dL glucose concentration and 100aM BSA molecules are detected.Abstract:
An ultrasensitive nonlinear cavity sensing method is proposed and demonstrated, in which the detection limit is not bounded by the quality factor of the cavity. 10mg/dL glucose concentration and 100aM BSA molecules are detected.read more
Citations
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Journal ArticleDOI
Label-free detection with high-Q microcavities: a review of biosensing mechanisms for integrated devices.
Frank Vollmer,Lan Yang +1 more
TL;DR: In this article, a comprehensive review of the sensing mechanisms utilized in this emerging field, their physics, engineering and material science aspects, and their application to nanoparticle analysis and biomolecular detection is presented.
Journal ArticleDOI
High-Q and high-sensitivity width-modulated photonic crystal single nanobeam air-mode cavity for refractive index sensing
TL;DR: To the best of the knowledge, this is the first PhC single nanobeam geometry that features both high Q-factors and high sensitivity, and is potentially an ideal platform for realizing ultracompact lab-on-a-chip applications with dense arrays of functionalized spots for multiplexed sensing.
Journal ArticleDOI
High-Q width modulated photonic crystal stack mode-gap cavity and its application to refractive index sensing.
Kaiyuan Yao,Yaocheng Shi +1 more
TL;DR: An optical sensor based on One-Dimensional photonic crystal (1D PhC) stack mode-gap cavity has been designed, fabricated and characterized and has been used for sensing applications by immersing into water-ethanol mixture of different volume concentrations.
Journal ArticleDOI
Design of simultaneous high-Q and high-sensitivity photonic crystal refractive index sensors
TL;DR: In this paper, the authors demonstrate that the nanoslotted parallel multibeam cavity possesses unexplored high Sensitivities (S) and Quality Factors (Q) and achieve S>800nm/RIU and Q>107 in liquid at telecom wavelength range when absorption is neglected.
Journal ArticleDOI
Applications of Photonic Crystal Nanobeam Cavities for Sensing.
TL;DR: From the studies reported, it is demonstrated that photonic crystal nanobeam cavities, which provide excellent light confinement capability, ultra-small size, flexible on-chip design, and easy integration, offer promising platforms for a range of sensing applications.
References
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Journal ArticleDOI
On the performance quantification of resonant refractive index sensors
Ian M. White,Xudong Fan +1 more
TL;DR: A rigorous definition for the detection limit of resonant RI sensors is set forth that accounts for all parameters that affect the detection performance and will lead to design strategies for performance improvement of RI sensors.
Journal ArticleDOI
High quality factor photonic crystal nanobeam cavities
TL;DR: In this paper, the authors investigated the design, fabrication, and experimental characterization of high quality factor photonic crystal nanobeam cavities in silicon using a five-hole tapered one-dimensional photonic mirror and precise control of the cavity length.
Journal ArticleDOI
Photonic crystal nanobeam cavity strongly coupled to the feeding waveguide
TL;DR: In this article, a deterministic design of an ultrahigh Q-factor, wavelength-scale photonic crystal nanobeam cavity is proposed and experimentally demonstrated using this approach, cavities with Q>106 and on-resonance transmission T>90% are designed.