We demonstrated two experimental methods of producing and guiding pulsed atomic beams on chip. One is to trap atoms first in a U-type magneto-optical trap on the chip, then transfer them to the magnetic guide field an...We demonstrated two experimental methods of producing and guiding pulsed atomic beams on chip. One is to trap atoms first in a U-type magneto-optical trap on the chip, then transfer them to the magnetic guide field and push them simultaneously by a continuous force from the power imbalance of the magneto-optical trap laser beams hence the pulsed cold atom beams are produced and move along the magnetic guide to the destination. The other is to trap atoms directly by a H-type magneto-optical trap, then push them to make them move along the magnetic guide field, thus high rate cold atom beams can be produced and guided on the chip.展开更多
Integrated 2-dimensional(2D)photonic devices such as monolayer waveguide has generated exceptional interest because of their ultimate thinness.In particular,they potentially permit stereo photonic architecture through...Integrated 2-dimensional(2D)photonic devices such as monolayer waveguide has generated exceptional interest because of their ultimate thinness.In particular,they potentially permit stereo photonic architecture through bond-free van der Waals integration.However,little is known about the coupling and controlling of the single-atom guided wave to its photonic environment,which governs the design and application of integrated system.Here,we report the optical coupling of atomically guided waves to other photonic modes.We directly probe the mode beating between evanescent waves in a monolayer 2D waveguide and a silicon photonic waveguide,which constitutes a vertically integrated interferometer.The mode-coupling measures the dispersion relation of the guided wave inside the atomic waveguide and unveils it strongly modifies matter's electronic states,manifesting by the formation of a propagating polariton.We also demonstrated light modulating and spectral detecting in this compact nonplanar interferometer.These findings provide a generalizable and versatile platform toward monolithic 3-dimensional integrated photonics.展开更多
基金supported by the National Basic Research Program of China (Grant Nos. 2005CB724505/1 and 2006CB921203)the National Natural Science Foundation of China (Grant No. 10774160)the Science Foundation of Wuhan National Laboratory for Optoelectronics (Grant No. P080001)
文摘We demonstrated two experimental methods of producing and guiding pulsed atomic beams on chip. One is to trap atoms first in a U-type magneto-optical trap on the chip, then transfer them to the magnetic guide field and push them simultaneously by a continuous force from the power imbalance of the magneto-optical trap laser beams hence the pulsed cold atom beams are produced and move along the magnetic guide to the destination. The other is to trap atoms directly by a H-type magneto-optical trap, then push them to make them move along the magnetic guide field, thus high rate cold atom beams can be produced and guided on the chip.
基金supported by the National Natural Science Foundation of China(62325404,61934004,and 91950119)the Fundamental Research Funds for the Central Universities(021014380174)+1 种基金L.S.acknowledges the support from the Pearl River Talent Recruitment Program(2019QN01C216)Shenzhen Science and Technology Program(JCYJ20210324140805014)。
文摘Integrated 2-dimensional(2D)photonic devices such as monolayer waveguide has generated exceptional interest because of their ultimate thinness.In particular,they potentially permit stereo photonic architecture through bond-free van der Waals integration.However,little is known about the coupling and controlling of the single-atom guided wave to its photonic environment,which governs the design and application of integrated system.Here,we report the optical coupling of atomically guided waves to other photonic modes.We directly probe the mode beating between evanescent waves in a monolayer 2D waveguide and a silicon photonic waveguide,which constitutes a vertically integrated interferometer.The mode-coupling measures the dispersion relation of the guided wave inside the atomic waveguide and unveils it strongly modifies matter's electronic states,manifesting by the formation of a propagating polariton.We also demonstrated light modulating and spectral detecting in this compact nonplanar interferometer.These findings provide a generalizable and versatile platform toward monolithic 3-dimensional integrated photonics.
