Molecular orientations in azopolymer holographic diffraction gratings as studied by Raman confocal microspectroscopy

Article Abstract:

A study was conducted to analyze molecular orientations in azopolymer holographic diffraction gratings by Raman confocal microspectroscopy. Thin films were made by spin coating a chloroform solution of the copolymer onto a microscope glass substrate. The Labram I microspectrometer was utilized to record the Raman spectra. Results indicated that the corresponding entropy distribution functions were different in several regions of the grating.

Usage, Molecular dynamics, Raman spectroscopy, Semiconductor films

---

Azopolymer holographic diffraction gratings: time dependent analyses of the diffraction efficiency, birefringence, and surface modulation induced by two linearly polarized interfering beams

Article Abstract:

Experiments were conducted to investigate the diffraction efficiency, birefringence, and surface modulation azopolymer films of p(DR1M-co-MMA) with a 12% mole fraction of DR1M. Parallel and perpendicular linearly polarized pump beams under low irradiances were used to record the holographic diffraction gratings. Results indicated that a nearly pure birefringence grating always form at short irradiation time.

Refraction, Double, Double refraction

---

Similar abstracts:

• Abstracts: Analyses of the diffraction efficiencies, birefringence, and surface relief gratings on azobenzene-containing polymer films
• Abstracts: Changing reactivity of a bimetallic surface via oxidation: reactions of methanol on oxygen-covered Co thin films
• Abstracts: Excited-state energy transfer and ground-state hole/electron hopping in p-phenylene-linked porphyrin dimers. Structural and photophysical properties of a water-soluble porphyrin associated with polycations in solution and electrostatically-assembled ultrathin films
• Abstracts: C70 in benzene, hexane, and toluene solutions. Adsorption of bromobenzene on periodically stepped and nonstepped NiO(100)
• Abstracts: Photoinduced electron transfer and molecular orientation of zinc porphyrin-imide dyads in Langmuir-Blodgett monolayer films. part 2

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.