Nanowerk April 26, 2024 Achieving distinctive modulation across short-wave infrared (SWIR) regions while enabling precise phase control at low signal loss within a compact footprint remains an ongoing challenge. By integrating CuCrP2S6 (CCPS) into silicon photonics microring resonators (MRR) an international team of researchers (United Arab Emirates, New York University) enhanced light-matter interaction and measurement sensitivity to minute phase and absorption variations. The devices exhibited low optical losses and excellent modulation efficiency. These results outperformed earlier findings on phase shifters based on TMDs. The study demonstrated distinct variations in electro-optic tuning sensitivity when comparing transverse electric and transverse magnetic modes, […]
Tag Archives: Photonic circuits
Silicon nanopillars for quantum communication
Science Daily September 20, 2022 The integration of recently discovered single-photon emitters in silicon into photonic structures is advantageous to exploit their full potential for integrated photonic quantum technologies. Researchers in South Korea have developed a top-down nanofabrication method, enabling the production of thousands of nanopillars per square millimeter with state-of-the-art photonic-circuit pitch, all the while being free of fabrication-related radiation damage defects. They found a waveguiding effect of the 1278 nm-G center emission along individual pillars accompanied by improved brightness compared to that of bulk silicon. Their results unlock clear pathways to monolithically integrating single-photon emitters into a photonic platform […]
Steering light to places it isn’t supposed to go
Phys.org April 28, 2021 The best materials for housing qubits and certain other optically activated objects typically reflect incident light. By stopping externally applied light from reaching its target, this reflectivity presents a challenge for controlling optically integrated devices. Researchers in the Netherlands have demonstrated a way of guiding light along an arbitrary path through a material by patterning the light’s phase. They shone an infrared beam into the edge of a 2D silicon crystal containing a periodic arrangement of air-filled pores. A large fraction of the light was reflected back along the beam, but because of disorder in the […]