Nanoplasmonics Enhanced Broadband Ultra-Sensitive Mid-Ir Sensor Array Integrated with Microfluidics

This paper shows a broadband ultra-sensitive IR sensor with novel folded gold nanoantenna sensing array on CaF₂ substrate integrated with microfluidic channel, which will allow, for the first time, continuous monitoring wideband finger print IR absorption of liquid and solution using enhancement of plasmonic nanoantenna. The broadband detection window we achieve is over 10 times larger than single nanorod antenna array, which pave the way to real-time fingerprint monitoring and various molecular recognition.