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Nanotechnology Now - Press Release: Researchers realize high-efficiency frequency conversion on integrated photonic chip

Abstract:
A team led by Prof. GUO Guangcan and Prof. ZOU Changling from the University of Science and Technology of China of the Chinese Academy of Sciences realized efficient frequency conversion in microresonators via a degenerate sum-frequency process, and achieved cross-band frequency conversion and amplification of converted signal through observing the cascaded nonlinear optical effects inside the microresonator. The study was published in Physics Review Letters.
Researchers realize high-efficiency frequency conversion on integrated photonic chip
Hefei, China | Posted on April 23rd, 2021
Coherent frequency conversion process has wide application in classical and quantum information fields such as communication, detection, sensing, and imaging. As a bridge connecting wavebands between fiber telecommunications and atomic transition, coherent frequency conversion is a necessary interface for distributed quantum computing and quantum networks. ....

Home Press Researchers , University Of Science , Wave Inc , Chinese Academy Of Sciences , Technology Of China , Chip Technology , Chinese Academy , Physics Review , Nanotechnology Now , வீடு ப்ரெஸ் ஆராய்ச்சியாளர்கள் , பல்கலைக்கழகம் ஆஃப் அறிவியல் , அலை இன்க் , சீன கலைக்கழகம் ஆஃப் அறிவியல் , தொழில்நுட்பம் ஆஃப் சீனா , சிப் தொழில்நுட்பம் , சீன கலைக்கழகம் , இயற்பியல் விமர்சனம் , நானோ தொழில்நுட்பம் இப்போது ,

Researchers realize high-efficiency frequency conversion on integrated photonic chip

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A team led by Prof. GUO Guangcan and Prof. ZOU Changling from the University of Science and Technology of China of the Chinese Academy of Sciences realized efficient frequency conversion in microresonators via a degenerate sum-frequency process, and achieved cross-band frequency conversion and amplification of converted signal through observing the cascaded nonlinear optical effects inside the microresonator. The study was published in
Physics Review Letters.
Coherent frequency conversion process has wide application in classical and quantum information fields such as communication, detection, sensing, and imaging. As a bridge connecting wavebands between fiber telecommunications and atomic transition, coherent frequency conversion is a necessary interface for distributed quantum computing and quantum networks. ....

University Of Science , Chinese Academy Of Sciences , Technology Of China , Chinese Academy , Physics Review , பல்கலைக்கழகம் ஆஃப் அறிவியல் , சீன கலைக்கழகம் ஆஃப் அறிவியல் , தொழில்நுட்பம் ஆஃப் சீனா , சீன கலைக்கழகம் , இயற்பியல் விமர்சனம் ,

Researchers realize synthetic gauge fields in single optomechanical resonator

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IMAGE: (a-b) Multimode interaction in a single optomechanical resonator creates an extensible synthetic gauge field; (c-e) Responses of optical photons and phonons in the cavity under different synthetic magnetic field intensities..
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Credit: CHEN Yuan et al.
The research team led by Prof. GUO Guangcan and Dr. DONG Chunhua from the University of Science and Technology of China realized synthetic gauge fields in a single optomechanical resonator by controlling geometric phase with the multimode interaction in the micro-resonator.
By engineering a Hamiltonian, uncharged particles or bosonic excitations can acquire a path-dependent phase which realizes a synthetic magnetic field. Such synthetic gauge field can improve the precision of quantum many-body simulation and control over bosons. ....

University Of Science , Technology Of China , Physics Review , Chemistry Physics Materials Sciences , Atomic Molecular Particle Physics , Technology Engineering Computer Science , Research Development , Atomic Physics , Particle Physics , பல்கலைக்கழகம் ஆஃப் அறிவியல் , தொழில்நுட்பம் ஆஃப் சீனா , இயற்பியல் விமர்சனம் , வேதியியல் இயற்பியல் பொருட்கள் அறிவியல் , அணு மூலக்கூறு துகள் இயற்பியல் , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் , ஆராய்ச்சி வளர்ச்சி , அணு இயற்பியல் , துகள் இயற்பியல் ,