Sequential multiphoton excitation method
US4461686A · kind A · utility
4Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1981 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | Dec 3, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D59/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Efficient multiphoton excitation is accomplished by sequentially exciting a polyatomic molecule with one or more wavelengths of infrared laser radiation. Preferably, the delay between successive excitations is longer than the rotational but shorter than the vibrational relaxation time of the molecule. By this method, laser-induced chemical reactions or isotope separation can be achieved with lower fluence and/or higher concentration of molecules than with prior art methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.