Table 1 Experimental settings of dual-comb RI sensing and biosensing.
From: Rapid, high-sensitivity detection of biomolecules using dual-comb biosensing
Experiments | λMMI (nm) | frep1 (MHz) | frep2 (MHz) | ∆frep (kHz) | Active MMI | Dummy MMI | Sample cell |
|---|---|---|---|---|---|---|---|
Dual-comb RI sensing of pure water | 1556.6 | 31.7 | 32.5 | − 851.9 | No surface modification | Single [Fig. 3b] | |
Dual-comb RI sensing of glycerol solution | 1556.6 | 31.7 | 32.5 | − 851.9 | No surface modification | Dual [Fig. 3c] | |
Dual-comb biosensing of SARS-CoV-2 N protein antigen | 1556.6 | 29.6 | 29.7 | − 88.6 | Surface modification of antibody | No surface modification of antibody | Single [Fig. 3d] |
