Detection of low concentration EGFR with a highly sensitive optofluidic resonato

A hollow-core metal-cladding waveguide (HCMW) optofluidic resonator that works based on a free-space coupling technique is designed. An HCMW can excite ultra-high-order modes (UOMs) at the coupled angle, which can be used as an optofluidic resonator to detect alterations of the epidermal growth fact