Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Wu Saijun"'
Autor:
Zhao, Yuxiang, Hu, Jiangyong, Liu, Ruijuan, Gao, Ruochen, Li, Yiming, Zhang, Xiao, Zhu, Huanfeng, Wu, Saijun
Acousto-optical modulation (AOM) is a powerful and widely used technique for rapidly controlling the frequency, phase, intensity, and direction of light. Based on Bragg diffraction, AOMs typically exhibit moderate diffraction efficiency, often less t
Externí odkaz:
http://arxiv.org/abs/2408.15051
When a laser-cooled atomic sample is optically excited, the envelope of coherent forward scattering can often be decomposed into a few complex Gaussian profiles. The convenience of Gaussian propagation helps addressing key challenges in digital holog
Externí odkaz:
http://arxiv.org/abs/2405.09117
Precise control of hyperfine matterwaves via Raman excitations is instrumental to a class of atom-based quantum technology. We investigate the Raman spinor control technique for alkaline atoms in an intermediate regime of single-photon detuning where
Externí odkaz:
http://arxiv.org/abs/2305.17610
In digital holography, the coherent scattered light fields can be reconstructed volumetrically. By refocusing the fields to the sample planes, absorption and phase-shift profiles of sparsely distributed samples can be simultaneously inferred in 3D. T
Externí odkaz:
http://arxiv.org/abs/2210.02721
Autor:
Ma, Yudi, Liu, Ruijuan, Ji, Lingjing, Qiu, Liyang, Wu, Saijun, Su, Dianqiang, Zhao, Yanting, Yao, Ni, Fang, Wei
Atoms are ideal quantum sensors and quantum light emitters. Interfacing atoms with nanophotonic devices promises novel nanoscale sensing and quantum optical functionalities. But precise optical control of atomic states in these devices is challenged
Externí odkaz:
http://arxiv.org/abs/2203.06716
Autor:
Wang, Yuzhuo, He, Yizun, Ji, Lingjing, Hu, Jiangyong, Huang, Xing, Ma, Yudi, Qiu, Liyang, Zhao, Kaifeng, Wu, Saijun
We demonstrate a simple method to obtain accurate optical waveforms with a GHz-level programmable modulation bandwidth and Watt-level output power for wideband optical control of free atoms and molecules. Arbitrary amplitude and phase modulations are
Externí odkaz:
http://arxiv.org/abs/2203.02915
Publikováno v:
PRX Quantum, 3, 040301 (2022)
Significant aspects of advanced quantum technology today rely on rapid control of atomic matterwaves with hyperfine Raman transitions. Unfortunately, efficient Raman excitations are usually accompanied by uncompensated dynamic phases and coherent spi
Externí odkaz:
http://arxiv.org/abs/2202.09709
We propose a composite acousto-optical modulation (AOM) scheme for wide-band, efficient modulation of CW and pulsed lasers. We show that by adjusting the amplitudes and phases of weakly-driven daughter AOMs, diffraction beyond the Bragg condition can
Externí odkaz:
http://arxiv.org/abs/2110.15537
While typical theories of atom-light interactions treat the atomic medium as being smooth, it is well-known that microscopic optical effects driven by atomic granularity, dipole-dipole interactions, and multiple scattering can lead to important effec
Externí odkaz:
http://arxiv.org/abs/2108.09268
Autor:
Wang, Yuzhuo, Zhao, Jian, Huang, Xing, Qiu, Liyang, Ji, Lingjing, Ma, Yudi, He, Yizun, Sobol, James P., Wu, Saijun
The propagation of light in moving media is dragged by atomic motion. The light-drag effect can be dramatically enhanced by reducing the group velocity with electro-magnetically induced transparency (EIT). We develop a systematic procedure to accurat
Externí odkaz:
http://arxiv.org/abs/2105.14832