𝔖 Bobbio Scriptorium
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Multicolor femtosecond laser with μJ level by cascaded four-wave mixing

✍ Scribed by Takayoshi Kobayashi; Jun Liu


Book ID
106255959
Publisher
Optical Society of Japan
Year
2010
Tongue
English
Weight
426 KB
Volume
17
Category
Article
ISSN
1340-6000

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Femtosecond dephasing in a polydiacetyle
✍ Toshiaki Hattori; Takayoshi Kobayashi 📂 Article 📅 1987 🏛 Elsevier Science 🌐 English ⚖ 477 KB

Dephasing times m a polydiacetylene (poly-3BCMU) film were resolved for the first time at two wavelengths by degenerate four-wave mixing using incoherent light. The dephasing times, 30 fs at 648 nm and 130 fs at 582 nm, correspond to excitons in chains of the polymer with different conjugation lengt