2 papers
physics.optics2026
Revealing Sharp Spectral Features with Complex Frequency Excitations: Challenges and Opportunities
Jacob B Khurgin, Andrea Alu, Vitaly Kozlov +1
Broadening of spectral and spatial responses due to intrinsic loss in real materials often hides sharp features. One recently recognized route to recover those features is to probe…
physics.optics2026
Theory of superlensing with complex frequency illuminations
Philippe Lalanne, Tong Wu
Recent experiments have demonstrated that the resolution of superlensing slabs can be significantly enhanced with complex frequency illuminations. In this study, we introduce a nov…