Project supported by the National Key Basic Research Program of China(Grant No.2013CB922003);the National Natural Science Foundation of China(Grant Nos.91421305,91121005,and 11174329)
We have experimentally offset-locked the frequencies of two lasers using electromagnetically induced transparency(EIT) spectroscopy of ^(85)Rb vapor with a buffer gas in a magnetic field at room temperature. The m...
Project supported by the National Natural Science Foundation of China(Grant Nos.91421305,91121005,and 11674359);the National Key Basic Research Program of China(Grant No.2013CB922003)
We report a sensitive detection of high Rydberg atom with large dipole moment utilizing its deflection near a pair of parallel cylindrical copper rods which are oppositely charged. When the low-field seeking state Ryd...
Project supported by the National Key Basic Research Program of China(Grant No.2013CB922003);the National Natural Science Foundation of China(Grant Nos.91421305,91121005,11674359,and 91436106)
We have studied the phenomenon of electromagnetically induced transparency(EIT) of ^87Rb vapor with a buffer gas in a magnetic field at room temperature. It is found that the spectral lines caused by the velocity se...
Project supported by the National Basic Research Program of China(Grant No.2013CB922003);the National Natural Science Foundation of China(Grant Nos.91421305,91121005,and 11174329)
In this paper,we present a theoretical simulation of 87Rb absorption spectrum in a thermal cm-cell which is adaptive to the experimental observation.In experiment,the coupling and probe beams are configured to copropa...
Project supported by the National Basic Research Program of China(Grant No.2013CB922003);the National Natural Science Foundation of China(Grant Nos.11174329 and 91121005)
We have studied highly excited sodium in various electric fields, parallel electric and magnetic fields, with one σ andπ photon irradiation, and even in a magnetic field with a complex laser polarization configurati...
Project supported by the National Basic Research Program of China(Grant No.2013CB922003);the National Natural Science Foundation of China(Grant Nos.11174329 and 91121005)
We report on the experimental spectral observations of barium in parallel electric and magnetic fields. The laser pulse is linearly polarized along or perpendicular to the fields, leading to the states m = 0 and the s...
supported by the National Natural Science Foundation of China(11104324,11374330,11074283,11227803,11374176,and 91121005)
Since the discovery of Hawking radiation, its consistency with quantum theory has been widely questioned. In the widely described picture, irrespective of what initial state a black hole starts with before collapsing,...
Project supported by the National Natural Science Foundation of China (Grant Nos. 11174329 and 91121005);the National Basic Research Program of China (Grant No. 2013CB922003)
We study the role of laser polarization in the diamagnetic spectrum for the transition from the ground state to the highly excited Rydberg states through a single photon absorption. For simplicity, one usually polariz...
Project supported by the National Natural Science Foundation of China (Grant Nos. 11174329 and 91121005);the National Basic Research Program of China (Grant No. 2013CB922003)
We present observations of Stark spectra of barium in highly excited Rydberg states in the energy region around n = 35. The one-photon excitation concerns the π transition. The observed Stark spectra at electric fiel...
Project supported by the National Natural Science Foundation of China (Grant Nos. 11174329 and 91121005);the National Basic Research Program of China (Grant No. 2013CB922003)
We calculate the diamagnetic spectrum of lithium at highly excited states up to the positive energy range using the exact quantum defect theory approach. The concerned excitation is one-photon transition from the grou...