Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments
Obtaining ultracold alkaline earth(-like) atoms in space encounters the problem of performing narrow-line laser cooling in microgravity environments (<inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semant...
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doaj-25e0580c40d9455fb221d94a5dda13e52020-11-25T03:16:54ZengMDPI AGApplied Sciences2076-34172020-07-01104928492810.3390/app10144928Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity EnvironmentsJie Ren0Hui Liu1Xiaotong Lu2Hong Chang3CAS Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Xi’an 710600, ChinaState Key Laboratory of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi’an 710069, ChinaCAS Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Xi’an 710600, ChinaCAS Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Xi’an 710600, ChinaObtaining ultracold alkaline earth(-like) atoms in space encounters the problem of performing narrow-line laser cooling in microgravity environments (<inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>-gEs). This paper reports an analysis of the magneto-optical trap (MOT) based on the narrow-line transition in <inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mn>88</mn> </msup> </semantics> </math> </inline-formula>Sr, while paying special attention to the role of the gravity. This analysis suggests the MOTs based on narrow-line transitions cannot be cold and dense enough in a <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>-gE. We thus propose a strategy: that one can use a dual-frequency MOT to realize a low-temperature, high density, and high transfer efficiency, narrow-line red MOT in <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>-gEs.https://www.mdpi.com/2076-3417/10/14/4928lasering cooling and trappingmicrogravityMonte Carlo simulationoptical lattice clocksin space |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jie Ren Hui Liu Xiaotong Lu Hong Chang |
spellingShingle |
Jie Ren Hui Liu Xiaotong Lu Hong Chang Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments Applied Sciences lasering cooling and trapping microgravity Monte Carlo simulation optical lattice clocks in space |
author_facet |
Jie Ren Hui Liu Xiaotong Lu Hong Chang |
author_sort |
Jie Ren |
title |
Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments |
title_short |
Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments |
title_full |
Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments |
title_fullStr |
Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments |
title_full_unstemmed |
Analysis of Narrow-Line Laser Cooling and Trapping of Sr Atoms in Microgravity Environments |
title_sort |
analysis of narrow-line laser cooling and trapping of sr atoms in microgravity environments |
publisher |
MDPI AG |
series |
Applied Sciences |
issn |
2076-3417 |
publishDate |
2020-07-01 |
description |
Obtaining ultracold alkaline earth(-like) atoms in space encounters the problem of performing narrow-line laser cooling in microgravity environments (<inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>-gEs). This paper reports an analysis of the magneto-optical trap (MOT) based on the narrow-line transition in <inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mn>88</mn> </msup> </semantics> </math> </inline-formula>Sr, while paying special attention to the role of the gravity. This analysis suggests the MOTs based on narrow-line transitions cannot be cold and dense enough in a <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>-gE. We thus propose a strategy: that one can use a dual-frequency MOT to realize a low-temperature, high density, and high transfer efficiency, narrow-line red MOT in <inline-formula> <math display="inline"> <semantics> <mi mathvariant="sans-serif">μ</mi> </semantics> </math> </inline-formula>-gEs. |
topic |
lasering cooling and trapping microgravity Monte Carlo simulation optical lattice clocks in space |
url |
https://www.mdpi.com/2076-3417/10/14/4928 |
work_keys_str_mv |
AT jieren analysisofnarrowlinelasercoolingandtrappingofsratomsinmicrogravityenvironments AT huiliu analysisofnarrowlinelasercoolingandtrappingofsratomsinmicrogravityenvironments AT xiaotonglu analysisofnarrowlinelasercoolingandtrappingofsratomsinmicrogravityenvironments AT hongchang analysisofnarrowlinelasercoolingandtrappingofsratomsinmicrogravityenvironments |
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