Enhanced sum frequency generation for ultrasensitive characterization of plasmonic modes
Highly sensitive characterization of surface plasmon resonance (SPR) modes lays the solid foundation for wide SPR-related applications.Herein, we discover that these SPR diegojavierfares.com modes based on all-metal nanostructures without any probed molecule can be characterized with ultrahigh sensitivities at both excitation and emission wavelengt