ANALYSIS OF ATOM FOCUSING IN A STANDING WAVE LASER FIELD FOR NANOMETER-SCALE FABRICATION
| Autor: | Xiangang Luo, Tingwen Xing, Chunlei Du, Jianping Shi, Hanmin Yao, Chunmei Zhang, Xianzhong Chen, Xunan Chen |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Condensed Matter::Quantum Gases
Fabrication Nanostructure Materials science Field (physics) business.industry Physics::Optics Statistical and Nonlinear Physics Condensed Matter Physics Laser law.invention Standing wave Transverse plane Optics law Atom Physics::Accelerator Physics Physics::Atomic Physics Laser beam quality Atomic physics business |
| Zdroj: | Modern Physics Letters B. 20:179-187 |
| ISSN: | 1793-6640 0217-9849 |
| DOI: | 10.1142/s0217984906009219 |
| Popis: | We present a calculation model to investigate the focusing characteristics of an atomic beam in a laser standing wave, taking the wave nature of the atomic propagation into account. The effects of atom source, optical parameters of the laser field and the substrate position on atom focusing are analyzed. Numerical simulations indicate that the best focusing performance can be obtained by repositioning the substrate or optimizing the longitudinal atomic beam speed, laser intensity and the detuning of the laser beam. The feature width of the nanostructure is mainly determined by the transverse speed distribution of atoms. Some methods for optimizing experimental parameters are suggested. |
| Databáze: | OpenAIRE |
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