▎ 摘　　要

NOVELTY - The utility model claims a high sensitivity based on graphene surface wave refractive index detecting device, the basic principle of using graphene surface wave of sensitive optical absorption depending on the medium refractive index, ultra high sensitivity measurement by using sound wave generating device capable of quickly changing the detected medium refractive index of, so as to realize the medium refractive index, response time by using the utility model of the device for measuring refractive index can be shortened to 1ns, sensitivity and detection limit is 1 asterisk 106mV/RIU and 5 asterisk 10-6RIU.