Surface third-harmonic generation at a two-photon-polymerized micro-interferometer for real-time on-chip refractive index monitoring

• Main Authors: Kim, Seung-Woo, Sandeep, C. S. Suchand, Jiao, Jiannan, Gao, Yi, Li, Shufan, Anh, Nguyen Duy, Su, Pei-Chen, Kim, Young-Jin
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Optical Testing; Refractive Index Monitoring; Engineering::Mechanical engineering
• Online Access: https://hdl.handle.net/10356/104482; http://hdl.handle.net/10220/50028
• Institution: Nanyang Technological University

A micro-interferometer based on surface third-harmonic generation (THG) at twophoton- polymerized SU-8 cuboids for real-time monitoring of the refractive index changes of target fluids, which can be easily integrated into microfluidic photonic systems, is demonstrated. The third-harmonic (TH) int...