3 papers
cs.LG2026
CRoPE: Efficient Parametrization of Rotary Positional Embedding
Beicheng Lou, Zifei Xu, Vivian W. H. Wong
Rotary positional embedding has become the state-of-the-art approach to encode position information in transformer-based models. While it is often succinctly expressed in complex l…
physics.optics2024
Twist-Induced Beam Steering and Blazing Effects in Photonic Crystal Devices
Nicolas Roy, Beicheng Lou, Shanhui Fan +2
Twisted bilayer photonic crystals introduce a twist between two stacked photonic crystal slabs, enabling strong modulation of their electromagnetic properties. The change in the tw…
physics.optics2024
Control of chirality and directionality of nonlinear metasurface light source via twisting
Huanyu Zhou, Xueqi Ni, Beicheng Lou +3
Metasurfaces have revolutionized nonlinear and quantum light manipulation in the past decade, enabling the design of materials that can tune polarization, frequency, and direction…