Southwestern Institute of Physics

Se4+-Doped Indium-Based Perovskites via NaCl-Driven Structural Transformation for Dynamic Luminescence Modulation in Multimodal Anti-counterfeiting and Encryption

Abstract The growing risks of counterfeiting and information security breaches have spurred the demand for high-security stimuli-responsive optical materials. However, many reported materials exhibit discontinuous luminescence switching or require harsh external stimuli. Herein,...

Rydberg-Atom-Based Angle-of-Arrival Estimation Method for Ku-Band Microwave Signals

The determination of the angle of arrival (AoA) of Ku-band microwave signals is of great significance in satellite communications, spectrum monitoring, and national defense security, which has created an urgent demand for high-precision and interference-resistant passive detectio...