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Dong Hoon Choi

Position: Visiting Scientist

choid@u.washington.edu


January 2003 - Present Visiting Professor

Research:

  • Second-order Nonlinear Optical Active chromophore
  • Functional NLO dendrimer
  • Sol-gel Materials and Linear/Nonlinear Optic Application
  • Photorefractive Organic Materials
  • Hologram Materials
  • Two Photon Absorption: Dyes and Dendrimerg

Ph.D. 1986-1991(May) The University of Michigan, Ann Arbor, USA
 Macromolecular Science & Engineering, Polymer Chemistry Major

Associate Professor(2002) - Kyung Hee University, Korea

Publications

1. Control of Photorefractive Effect using Functionalized Sol-gel Composite. Polymer Bulletin, 49, 173-180 (2002)

2. Diffraction behavior of photorefractive molecular materials containing phenothiazine derivatives, Applied Physics Lett., 81, 25 (2002).

3. Photorefractive molecular composite fabricated by the phenothiazine derivatives, Mol. Cryst. and Liq. Cryst. 377, 281-284 (2002)

4. Dynamics of grating formation in photorefractive sol-gel composites, OpticalMaterials, 21, 373-377 (2002)

5. Photo-alignment of low molecular mass nematic liquid crystals on photoreactive polyimide and polymethacrylate film by irradiation of a linearly polarized UV light, PolymerBulletin, 48, 373-380 (2002).

6. Catalytic hydrogenation of o-nitrochlorobenzene to 3,3'-dichlorobenzidine, Bull.oftheKor.Chem.Soc., 23, 12 (2002).

7. Synthesis and photoisomerization properties of polynorbornenes with azobenzene chromophore, Bull.oftheKor.Chem.Soc., 23, 7, 957-963 (2002)

8. Low-threshold blue amplified spontaneous emission in a statistical copolymer and its blend, AppliedPhysicsLett., 81, 3, 424-426 (2002)

9. Unusual characteristics of diffraction gratings in the liquid crystal cell fabricated with an alignment layer of azobenzene-containing amorphous polymer, AdvancedMaterials, 14, 13-14, 4983-988 (2002)

10. Reversible polarization gratings on the thin films of polyoxetanes bearing 4-(N,N- diphenyl) amino-4'-nitroazobenzene chromophores, AdvancedFunctionalMaterials, 12, 10, 670 (2002).

11. Photochemical reactions of the dimethacrylate compound containing a chalcone moiety in the main chain, EuropeanPolymerJ. 38, 6, 1203 (2002).

12. Optical anisotropy and its temporal stability of chalcone-based epoxy compound for liquid crystal alignment layer, Polymer,43, 703 (2002).

13. Optical anisotropy of soluble polyimide containing photoreactive chalcone group in the side chain under irradiation of a linearly polarized UV light, Bull.of theKor.Chem.Soc., 23, 3 (2002).

14. Photo-alignment of low-molecular mass nematic liquid crystals on photochemically bifunctional chalcone-epoxy film by irradiation of a linearly polarized UV light, Bull.oftheKor.Chem.Soc., 23, 4 (2002).

 
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