In this work,we report on an off-resonant four-wave mixing experiment via a ladder-type configuration in a hot rubidium atomic vapour.We find for the first time,to the best of our knowledge,that the generated light is...In this work,we report on an off-resonant four-wave mixing experiment via a ladder-type configuration in a hot rubidium atomic vapour.We find for the first time,to the best of our knowledge,that the generated light is delayed compared with the reference.At the same time,the seeded signal beam is also delayed,though the delay time is not as so large as the one that the generated light has.Both delayed times can be adjusted experimentally by controlling the two-photon detuning.The experimental results are in good agreement with our theoretical predictions.Our results may be important for storing telecom-band photons.展开更多
基金supported by the National Key R&D Program of China (2017YFA0304800)the National Natural Science Foundation of China (U20A20218, 61525504,61435011)+1 种基金Fundamental Research Funds for the Central Universitiesthe Youth Innovation Promotion Association of C AS(2018490)。
基金supported by the National Fundamental Research Program of China (Grant No. 2 011CBA00200)the National Natural Science Foundation of China (Grant Nos. 11174271, 61275115, 61435011, 61525504)
基金Project supported by the National Natural Science Foundation of China(Grant Nos.10874171 and 11174271)the National Basic Research Program of China(Grant No.2011CB00200)+1 种基金the Innovation Fund of the Chinese Academy of Sciences,Chinathe Program for New Century Excellent Talents in University of Ministry of Education of China(Grant No.NCET-07-0791)
文摘In this work,we report on an off-resonant four-wave mixing experiment via a ladder-type configuration in a hot rubidium atomic vapour.We find for the first time,to the best of our knowledge,that the generated light is delayed compared with the reference.At the same time,the seeded signal beam is also delayed,though the delay time is not as so large as the one that the generated light has.Both delayed times can be adjusted experimentally by controlling the two-photon detuning.The experimental results are in good agreement with our theoretical predictions.Our results may be important for storing telecom-band photons.