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. 2011 Mar 2;133(8):2621-5. doi: 10.1021/ja108992t. Epub 2011 Feb 4.

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cyclization
  • Ethylenes / chemical synthesis*
  • Ethylenes / chemistry
  • Infrared Rays
  • Lasers
  • Molecular Structure
  • Photochemistry
  • Photons*
  • Stereoisomerism

Substances

  • Ethylenes