Bio-molecular SEIRAS Sensor with Passive Molecule Trapping Functionality
- Resource Type
- Conference
- Authors
- Miao, Xianglong; Yan, Lingyue; Wu, Yun; Liu, Peter Q.
- Source
- 2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2020 45th International Conference on. :1-2 Nov, 2020
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Performance evaluation
Molecular biophysics
Reflection
Nanoscale devices
Biosensors
Optical sensors
Optical surface waves
- Language
- ISSN
- 2162-2035
We demonstrate a proof-of-concept design of a new type of nanophotonic molecular sensors with the functionality of trapping target biomolecules to the device regions of highly enhanced field intensity, and hence facilitating improvement of sensing performance. Our experimental results show that these devices are capable of effectively accumulating precipitated L-Proline after the analyte solution of various concentrations dries on the device surface. Specifically, our devices produce a few percentage reflection (absorption) change in response to picogram level amino acid proline. Our work demonstrates a new strategy for designing optical sensors for detecting and sensing trace amount of analyte such as molecules in solutions.