Development of optical WGM resonators for biosensors

Whispering gallery mode (WGM) resonators are versatile high sensitivity sensors, but applications regularly suffer from elaborate and expensive manufacturing and read-out. We have realized a simple and inexpensive concept for an all-polymer WGM sensor. Here, we evaluate its performance for relative humidity measurements demonstrating a sensitivity of 47 pm/% RH. Our results show the sensor concepts’ promising potential for use in real-life applications and environments.

Download Full-text

Tunable WGM resonators from optically trapped dye doped liquid crystal emulsion droplets

10.1117/12.2061986 ◽

2014 ◽

Cited By ~ 1

Author(s):

Mojmír Šerý ◽

Zdeněk Pilát ◽

Jan Ježek ◽

Mehdi Aas ◽

Alper Kiraz ◽

...

Keyword(s):

Liquid Crystal ◽

Emulsion Droplets ◽

Optically Trapped ◽

Wgm Resonators

Download Full-text

Hybrid plasmonic–photonic whispering gallery mode resonators for sensing: a critical review

The Analyst ◽

10.1039/c6an02693a ◽

2017 ◽

Vol 142 (6) ◽

pp. 883-898 ◽

Cited By ~ 34

Author(s):

Angelo Bozzola ◽

Sara Perotto ◽

Francesco De Angelis

Keyword(s):

Critical Review ◽

Optical Sensing ◽

State Of The Art ◽

Whispering Gallery Mode ◽

The State ◽

Whispering Gallery ◽

Recent Advances ◽

Wgm Resonators

In this review we present the state of the art and the most recent advances in the field of optical sensing with hybrid plasmonic–photonic whispering gallery mode (WGM) resonators.

Download Full-text

Optical Whispering-Gallery Mode Phenomenon as a Composite Sensor With Applications to Direct On-Chip Thermal Sensing

Volume 4: Heat and Mass Transfer Under Extreme Conditions; Environmental Heat Transfer; Computational Heat Transfer; Visualization of Heat Transfer; Heat Transfer Education and Future Directions in Heat Transfer; Nuclear Energy ◽

10.1115/ht2013-17245 ◽

2013 ◽

Author(s):

Matthew Frenkel ◽

Marlon Avellan ◽

Zhixiong Guo

Keyword(s):

Composite System ◽

Whispering Gallery Mode ◽

Quality Factors ◽

Pressure Sensing ◽

Whispering Gallery ◽

Area Of Interest ◽

Thermal Sensing ◽

On Chip ◽

Wgm Resonators ◽

Very High

Optical Whispering-Gallery Mode (WGM) resonators can be fabricated with very high quality factors allowing for their use as high resolution sensors in a myriad of fields ranging from quantum electro-dynamics (QED) to pressure sensing. In this paper, we focus on integrating WGM as a dynamic temperature measurement device. The WGM sensors are fabricated onto the heating element, instead of acting as an indirect temperature sensor, allowing for direct monitoring of an area of interest. An adaptation to the WGM theoretical model, to include the thermal expansion of the composite system, is discussed and analyzed.

Download Full-text