3 papers
physics.optics2025
Electromagnetic Theory of Metasurface Perfect Magnetic Conductor (PMC)
Oscar Céspedes Vicente, Karim Achouri, Christophe Caloz
Artificial magnetic conductors (AMCs) mimic the idealized boundary condition of a perfect magnetic conductor (PMC), which reflects electromagnetic waves with a preserved electric f…
eess.SP2025
Analog OFDM based on Real-Time Fourier Transformation
Xiaolu Yang, Oscar Céspedes Vicente, Christophe Caloz
This paper proposes an analog orthogonal frequency division multiplexing (OFDM) architecture based on the real-time Fourier transform (RTFT). The core enabling component is a linea…
physics.optics2020
Bessel Beams: Unified and Extended Perspective
Oscar Céspedes Vicente, Christophe Caloz
We present a unified and extended perspective of Bessel beams, irrespective to their orbital angular momentum (OAM) -- zero, integer or noninteger -- and mode -- scalar or vectoria…