FIG 2 (IMAGE) Compuscript Ltd Caption Figure 2. Results of three demodulation schemes during refractive index detection: (a) Dual-wavelength laser spectra in solutions with different RIs; (b) fitting relationship between laser wavelength and RI; (c) RF spectrum in solutions with different RIs; (d) FSR response with RI and its fitting curve; (e) The 4th notch frequency response with RI and its fitting curve. Credit OEA Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.