Laser action and excited state absorption of chlorophyll-a

✍ Scribed by D. Leupold; S. Mory; R. König; P. Hoffmann; B. Hieke

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 398 KB
• Volume: 45
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(77)80091-2

✦ Synopsis

Stimulated emission of chlorophyll

-a is observed in the spectral range around 670 nm. The calculated wavelength at the threshold turns out to be shifted by 20 nm towards longer wavelengths. To clarify this discrepancy, extrinsic-loss variations at the laser as well as measurements of nonlinear absorption are carried out. The results indicate an excited sir&et state absorption (0 > IO" cm* within the range from 670 to 700 run).