Our latest work is published in Nano Letters [Link].
Sub-Tip-Radius Near-Field Interactions in Nano-FTIR Vibrational Spectroscopy on Single Proteins
Infrared vibrational spectrum of a single protein is observed using advanced measurement techniques based on near-field optical microscopy. This method utilizes light confined at the nanometer scale, allowing for the detailed analysis of extremely small samples, which was previously challenging with conventional infrared spectroscopy. The achievement represents a major advancement towards technological innovations such as ultra-sensitive and super-resolution infrared imaging, as well as single-molecule vibrational spectroscopy.