Breakthrough in room temperature manipulation of quantum optofluids, laying the foundation for the next generation of unconventional computing

2023-11-02

According to a paper published in the latest issue of Physical Review Letters, the physicist team at the Kolkovo Institute of Science and Technology in Russia has made progress in spatial manipulation and energy control of room temperature quantum optical fluids (also known as polarized condensates), marking a key milestone in the development of high-speed, all optical polarization logic devices. This type of logic device has long been the key to the next generation of unconventional computing. The dual dye organic microcavity has a dual color excitation profile, generating a polaron condensate at the center of the ring (schematic diagram). Image source: Physicist organization network polaron is a mixed particle formed by the coupling of light and matter, usually described as a light quantum fluid that can be controlled by its material composition. Recently, researchers have taken a milestone step forward by introducing a new method for active spatial control of "liquid light" condensates at room temperature. The difference in this progress is that it can manipulate polaron condensates without relying on the commonly used polaron excitation curves. The researchers introduced an additional copolymer layer into the cavity, which is a weak coupling layer that maintains non resonance with the cavity mode. Researchers say that this seemingly simple but incredibly clever move has opened a door to various possibilities for people. By using a bicolor beam excitation to saturate the light absorption in this uncoupled semiconductor layer, researchers achieved ultrafast modulation of the effective refractive index while forming polaron condensates. Excited state absorption also revealed the secret of locally induced polaron dissipation. These intricate interactions are like a beautifully designed puzzle, where fragments are pieced together to control the spatial distribution, density, and energy of polaron condensates, all of which occur at room temperature. Researchers say that this breakthrough has ushered in a new era of organic polarized electronic platforms, laying the foundation for "liquid light" calculations under environmental conditions. By controlling the characteristics of the interaction between light and matter, they can fully utilize the potential of polarized electrons and break free from the limitations of traditional cavity structures. (New News Agency)

Edit:Ling Xiaotong    Responsible editor:Li Yi

Source:TechWorld

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