Visible Observation of Metastable Helium Atoms Confined in an Infrared/Visible Double Resonance Trap
- 1 March 1992
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 31 (3A) , L276
- https://doi.org/10.1143/jjap.31.l276
Abstract
Using a visible probe laser exciting the 2p3P2→3d3D3 transition (λ=588 nm), we have demonstrated a visible observation of metastable He atoms magnetooptically trapped by an infrared laser resonant with the 2s3S1→2p3P2 transition (λ=1083nm). Detecting visible resonance fluorescence, only 104 atoms confined in a trap with a diameter of 1 mm have been sensitively observed even with the naked eye. It has been found that under a given condition the visible laser operates as a trapping laser and considerably extends the capture range of infrared laser detuning.Keywords
This publication has 12 references indexed in Scilit:
- Laser Cooling of a Helium Atomic BeamJapanese Journal of Applied Physics, 1991
- Four-beam laser trap of neutral atomsOptics Letters, 1991
- Laser Cooling and Trapping of Argon and Krypton Using Diode LasersJapanese Journal of Applied Physics, 1990
- Preparation of a pure intense beam of metastable helium by laser coolingChemical Physics, 1990
- Quantized motion of atoms in a quadrupole magnetostatic trapJournal of the Optical Society of America B, 1989
- Laser cooling and trapping of Ne metastable atomsPhysical Review A, 1989
- Laser Cooling below the One-Photon Recoil Energy by Velocity-Selective Coherent Population TrappingPhysical Review Letters, 1988
- Trapping of Neutral Sodium Atoms with Radiation PressurePhysical Review Letters, 1987
- LNA: A new CW Nd laser tunable around 1.05 and 1.08 µmIEEE Journal of Quantum Electronics, 1986
- Laser Deceleration of an Atomic BeamPhysical Review Letters, 1982