Evolution of optical force on two-level atom by ultrashort time-domain dark hollow Gaussian pulse
| Autor: | Xiaochao Cao, Qiang Lin, Zhaoying Wang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Femtosecond pulse shaping business.industry Pulse (signal processing) Optical force Physics::Optics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Optics Multiphoton intrapulse interference phase scan 0103 physical sciences Atom Electrical and Electronic Engineering Physical and Theoretical Chemistry Atomic physics 010306 general physics business Ultrashort pulse Bandwidth-limited pulse Envelope (waves) |
| Zdroj: | Optics Communications. 399:34-39 |
| ISSN: | 0030-4018 |
| DOI: | 10.1016/j.optcom.2017.04.040 |
| Popis: | Based on the analytical expression of the ultrashort time-domain dark hollow Gaussian (TDHG) pulse, the optical force on two-level atoms induced by a TDHG pulse is calculated in this paper. The phenomena of focusing or defocusing of the light force is numerical analyzed for different detuning, various duration time, and different order of the ultrashort pulse. The transverse optical force can change from a focusing force to a defocusing force depending on the spatial-temporal coupling effect as the TDHG pulses propagating in free space. Our results also show that the initial phase of the TDHG pulse can significantly changes the envelope of the optical force. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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