2 papers
physics.optics2026
Ultrafast wide-field 3D topography with extended depth of field
Qianyi Wei, Jielei Ni, Yuquan Zhang +6
Ultrafast optical imaging has enabled direct observation of femtosecond-nanosecond dynamics, yet three-dimensional (3D) dynamic measurements at high numerical aperture (NA) remain…
physics.optics2026
Temporal Focusing Enables Distortion-Resistant high-intensity Spatiotemporal Optical Vortices
Jielei Ni, Yao Zhang, Qianyi Wei +10
Spatiotemporal optical vortices (STOVs) carry transverse orbital angular momentum and offer new degrees of freedom for light-matter interactions. Yet conventional focusing of STOVs…