| Autor: |
Chen T; Department of Physics and Astronomy, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA., Madey JM |
| Jazyk: |
angličtina |
| Zdroj: |
Physical review letters [Phys Rev Lett] 2001 Jun 25; Vol. 86 (26 Pt 1), pp. 5906-9. |
| DOI: |
10.1103/PhysRevLett.86.5906 |
| Abstrakt: |
We report the observation of sub-Poisson intensity fluctuations in the coherent spontaneous harmonic radiation generated by an infrared free-electron laser in a photon counting experiment using a well-defined ensemble of electron pulses. These observations constitute the first observation of a nonclassical state of the radiation field generated by a beam of free electrons. The fluctuations observed in the experiment are smaller than those expected from semiclassical radiation theory, and larger than those expected from electron shot noise. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
