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NANO-PHOTONICS LABORATORY 

Research

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In nanophotonics lab we research is directed towards the development of new photonic devices and applications utilizing light-matter interactions in the nanoscale. Our most recent work has focused on metasurfaces and Lead-Halide Perovskite devices. Metasurfaces are nano-structured surfaces which allow for controlling all aspects of light and electromagnetic waves – amplitude, phase, polarization and more. Such properties render metasurfaces the ultimate tool for controlling and manipulating light, paving the way to new and exciting applications such as 3D displays, AR/VR visors, flat optical components and many more. Lead-Halide perovskites are solution applied semiconducting materials exhibiting direct and tunable bandgap. Together with their ease of processing this family of materials exhibit great promise to a new class of light sources which can be tuned across the whole visible range as well as highly efficient solar cells.

The Team

Latest Publications

Ultra-broadband wide-angle anti-reflection scheme utilizing multi-layer resonant metasurfaces

Suppressing reflections at interfaces between materials with different optical properties is a long-standing challenge, especially for beams with complex spatiotemporal profiles. We introduce a new method using nanostructured, multi-layer metasurfaces with wavelength-scale periodicity to achieve broadband antireflection. This design demonstrates over −30 dB reflection suppression at a Silicon-Air interface across a ~400 nm bandwidth at telecom wavelengths and angles up to ±30˚. Compared to traditional moth-eye-like structures, our approach offers simpler, repeatable fabrication using a single material. Additionally, it is compatible with modern additive manufacturing techniques like 3D printing and Nano-Imprint Lithography.

Contact Us

MSc and PhD positions are open for enthusiastic students.

kobys@eng.tau.ac.il
+972-3-6407559

30 Haim Levanon st., Ramat Aviv

Tel Aviv 69978

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