Recent advances in quantum and photonic materials and devices promise transformative applications. Researchers achieved full amplitude modulation in terahertz frequencies using graphene metamaterials and demonstrated high-brightness quantum cascade lasers operating continuously. Novel quantum-enhanced dual-comb spectroscopy increases spectral precision, while innovations in optical matrix multipliers and photopatterning advance image processing and display technologies. These breakthroughs enhance sensitivity, efficiency, and scalability in sensing and communication systems.