One-color reversible control of photochromic reactions in a diarylethene derivative: three-photon cyclization and two-photon cycloreversion by a near-infrared femtosecond laser pulse at 1.28 µm.
J Am Chem Soc
; 133(8): 2621-5, 2011 Mar 02.
Article
in En
| MEDLINE
| ID: mdl-21294540
ABSTRACT
One-color control of colorization/decolorization reactions of diarylethene molecules was attained by using nonresonant high-order multiphoton absorption processes with a near-infrared (NIR) femtosecond laser pulse at 1.28 µm with 35 fs full width at half-maximum (fwhm). The intensity of a rather weak laser pulse (<1 nJ/pulse) can induce the simultaneous three-photon absorption leading to the colorization, while much weaker intensity induces two-photon absorption resulting in the decolorization. The spatial patterning concomitant with higher-order multiphoton absorption processes was also demonstrated.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Photons
/
Ethylenes
Language:
En
Journal:
J Am Chem Soc
Year:
2011
Document type:
Article