Abstract: Advanced infrared (IR) vision have been a subject of increasing interest in recent
years, driven by applications in surveillance, security, health, and industry. However,
conventional IR imagers based on narrow-bandgap semiconductors are limited by low
temperature operations, high-noise levels and inability to augment with visible light. To
overcome these limitations, the upconversion IR imaging based on parametric nonlinear
processes has attracted recent attention [1]. This technique preserves the coherence of the
incident wavefront. However, it often requires bulky nonlinear crystals and high-power lasers,
making it impractical for real-world application. The use of nonlinear sum-frequency
generation (SFG) metasurfaces has recently been offered as a compact all-optical alternative
[2]. In the first part of the talk, the non linear behavior of a guided mode resonance
metasurface of lithium niobate nonlinear film is investigated. In the second part of the talk,
the up conversion imaging with the metasurface is discussed. Our study has important
applications in the future development of compact night vision instruments and sensor
devices and multi-colour imaging at room temperature

BIO: Laura was Born in Colombia. She completed her Bachelor’s degree in Physics at the
University of Quindio in Colombia before pursuing a Master’s degree in Sciences at Center of
research in Optics (CIO) in Mexico. During her time at CIO, she conducted research on 2D
materials and shape memory polymers for potential biomimetic applications. Currently, Laura
is engaged in a dual PhD program with the Australian National University and Friedrich Schiller
Universität Jena. Her research is centered around metasurfaces for infrared-to-visible imaging,
exploring novel designs that can enhance the capabilities for imaging systems. Laura is looking
for making strides in this area of research, aiming to advance imaging technology and its
applications. Her research interests are metamaterials, photonics, 2D materials and Imaging.