Dye lasers
US4441188A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1981 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Sep 8, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/022
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A dye laser (FIG. 1, 5 or 6) includes a pumping laser source (e.g. 11), an optical resonator (e.g. 13-15), and a dye solution or dye cell (e.g. 12) disposed in the path of the pumping laser light in the resonator. The dye cell disclosed herein comprises a pair of closely spaced transparent discs (21). A motor (26) serves to spin the discs at a high rate of speed. The pumping laser light in the resonator is focused on the discs at a predetermined angle (i.e. the Brewster angle). New, unbleached dye is injected axially with respect to the discs so that the spin force causes a radial flow of the dye solution between the spinning discs and, of course, past the pumping laser light spot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.