Tulane Researchers Boost Superoscillation Frequency With Two Waves

Tulane University researchers have simplified the creation of superoscillations, achieving a twofold enhancement in local frequency using only two harmonic frequencies, a feat previously achieved with four harmonics. The team reanalyzed existing data and conducted new experiments in the terahertz range, demonstrating that frequencies of approximately 0.5 THz and 0.6 THz, and 0.55 and 0.6 THz, when combined, produce superoscillations of comparable quality to more complex setups. This simplification relies on near-complete destructive interference between the frequency components,…