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The rapid development of photonic integrated circuits (PICs) has combined multiple optical devices and functions on a single chip, completely changing optical communication and computing systems.For decades, silicon-based PICs have dominated the field due to their cost-effectiveness and integration with existing semiconductor manufacturing technologies, despite their limitations in electro-optic ...
Recently, the Aerospace Laser Technology and System Department of the Shanghai Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, and the East China Research Team of the Key Laboratory of Quantum Optics, Chinese Academy of Sciences, together with the research team of Professor Chen Liqing of East China Normal University, demonstrated a Rydberg microwave sensor with high sens...
Optical metamaterials are an effective way to utilize their superior photon capture capabilities. Therefore, perfect absorbers can be achieved through nanoscale resonant plasmas and metamaterial structures.Metamaterial perfect absorbers (MPAs) are typically composed of periodic subwavelength metals (such as plasma superabsorbers) or dielectric resonance units. Compared with static passive physical...
This week, an illustration was published on the cover of the international journal Science, showcasing a powerful mode-locked laser emitted from a miniature photonic semiconductor.A research team led by Alireza Marandi, a professor of electrical engineering and applied physics at the California Institute of Technology, has successfully developed a conventional mode-locked laser large enough to fit...
Theoretical physicist Farok Miwivar studied the interaction between two sets of luminescent atoms in a quantum cavity - a quantum cavity is an optical device composed of two excellent small mirrors that can capture light in a small area for a long time.This model and its predictions can be used for the next generation of superradiance lasers. They can be used and observed in cutting-edge cavity/wa...