Transient states of matter far from equilibrium may exhibit physical properties beyond those allowed by the equilibrium-state crystalline symmetries. We explore ultrafast and direct electronic excitations of transient states in a dirty-limit superconductor with time-resolved terahertz-pump terahertz-probe spectroscopy....
High-performance terahertz (THz) sources are increasingly important for next-generation communication, sensing and precision metrology systems. However, existing approaches often rely on complex system architectures, making it difficult to simultaneously achieve low noise and compact photonic-THz synthesizer implementa...
C. Qin, Jian-Kang Li, Ying-Ying Ji et al.· PhotoniX Synergy· 0 citations
Superconducting quantum capacitance detectors (QCDs) have emerged as among the most sensitive terahertz (THz) photon detectors, positioning them as promising detector components for next-generation cryogenic telescopes. However, their limited dynamic range (DR, ∼32 dB) and low saturation power (∼0.1 fW) have hindered t...
Tian-Yuan Chi, Jing-Bo Wu, Li-Li Shi et al.· APL Photonics· 0 citations
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