3 papers
physics.optics2025
Experimental realization of a full-band wave antireflection based on temporal taper metamaterials
Haonan Hou, Kai Peng, Yangkai Wang +5
As time can be introduced as an additional degree of freedom, temporal metamaterials nowadays open up new avenues for wave control and manipulation. Among these advancements, tempo…
physics.acc-ph2025
Terahertz-Driven Nano-tip Field-Emission Electron Gun and Cascaded Acceleration
Wentao Yu, Nongchao Tan, Kai Peng +10
This paper reports two versions of terahertz (THz)-driven nanotip field-emission electron guns: single-layer reflective guns (SLRGs) and double-layer reflective guns (DLRGs). Both…
physics.acc-ph2025
Observation and Interpretation of Field Emission Saturation Induced by an Ultra-fast Intense Terahertz Field
Wentao Yu, Nongchao Tan, Kai Peng +10
Field emission under ultra-fast intense terahertz fields provides a promising approach for generating electron bunches with ultrashort pulse duration and high charge densities. It…