We develop a generalization of the time-varying Drude model, treating carrier density, effective mass, and collision rate as explicit functions of time. We derive expressions for polarization, susceptibility, displacement, and permittivity in different domains. Our analysis reveals that non-adiabatic modulations and time-dependent losses induce rich and distinct behaviors, leading to temporal blurring, selective gating and suppression, and low-frequency spectral reshaping. Besides underpinning and upgrading the current framework on photonics of time-varying media, this model may be useful in the design and fitting theoretical models with experimental realizations.
Temporal Scattering at Irremovable Exceptional Points in Lossless Drude Media
State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen University（深圳大学物理与光电工程学院射频异构集成国家重点实验室）；College of Electronics and Information Engineering, Shenzhen University（深圳大学电子与信息工程学院）
Quantum-optical theory of the few femtosecond nonlinear optical response of Drude metals with a non-parabolic conduction band
South China Normal University（华南师范大学）；Shiv Nadar Institution of Eminence Deemed to be University（希夫纳达尔卓越大学）；Ben-Gurion University of the Negev（内盖夫本-古里安大学）
Resonance-Enhanced Time Reflection at Photonic Temporal Interfaces
College of Physics and Optoelectronic Engineering, Harbin Engineering University（哈尔滨工程大学物理与光电工程学院）；Department of Electronics and Nanoengineering, Aalto University（阿尔托大学电子与纳米工程系）；TUM School of Computation, Information and Technology, Technical University of Munich（慕尼黑工业大学计算、信息与技术学院）；Department of Physics and Mathematics, University of Eastern Finland（东芬兰大学物理与数学系）；Institute of Theoretical Solid State Physics, Karlsruhe Institute of Technology（卡尔斯鲁厄理工学院理论固体物理研究所）；Institute of Nanotechnology, Karlsruhe Institute of Technology（卡尔斯鲁厄理工学院纳米技术研究所）；Center for Integrated Quantum Science and Technology, Karlsruhe Institute of Technology（卡尔斯鲁厄理工学院集成量子科学与技术中心）
