Holographic Diffraction Grating Controlled by Means of Nematic Liquid Crystal

Sainov, S.; Mazakova, M.; Pantcheva, M.; Tontchev, D.

doi:10.1080/00268948708070979

Cited by 5 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since k and n vary with the redox state of a material, we reasoned that it would be possible to use an electrochemical stimulus to modulate the DE of a redox-active grating. This proves to be the case: photolithographic gratings fabricated using any of the materials described in the preceding sections diffract and the diffraction efficiency can be modulated by redox switching. − While the studies outlined herein have focused on cataloging the properties of the electroactive optical diffraction gratings, our long-range objectives in this area are to use the technology to fabricate electrochemically switchable holograms and photonic crystals.…”

Section: Electrochemically Modulated Diffraction Gratingsmentioning

confidence: 97%

Photolithographically-Patterned Electroactive Films and Electrochemically Modulated Diffraction Gratings

et al. 1999

View full text Add to dashboard Cite

This manuscript presents an overview of work directed toward the creation of arbitrary micron-scale patterns of electroactive polymer films by the application of photolithography. A brief overview of work by other groups in the field is followed by a detailed description of work from our own labs which resulted in the development of methods to pattern a variety of different electroactive materials, including Ru-and Os-polypyridine complexes, viologen-based polymers, and a low-potential polythiophene. The discussion provides detail on the photolithographic methodology. In addition, the spatially-patterned films are characterized by using optical and scanning electron microscopy. The voltammetric and spectroelectrochemical properties of several of the lithographically-patterned films are also presented. Finally, photolithography is applied to fabricate electrochromic optical diffraction gratings. The diffraction efficiency of these electroactive gratings can be modulated by an electrochemical stimulus. The properties and mechanism for operation of the electrochromic gratings are described.

show abstract

Section: Electrochemically Modulated Diffraction Gratingsmentioning

confidence: 97%

Photolithographically-Patterned Electroactive Films and Electrochemically Modulated Diffraction Gratings

et al. 1999

View full text Add to dashboard Cite

show abstract

(S)‐Tetrahydro‐1‐Methyl‐3,3‐Diphenyl‐1H,3H‐Pyrrolo‐[1,2‐ c ][1,3,2]Oxazaborole‐Borane Complex

et al. 2003

View full text Add to dashboard Cite

(S)‐Tetrahydro‐1‐methyl‐3,3‐diphenyl‐1H,3H‐Pyrrolo‐[1,2‐ c ][1,3,2]Oxazaborole‐Borane Complex intermediate: (S)‐proline‐N‐carboxyanhydride intermediate: (S)‐diphenylprolinol sulfate intermediate: (S)‐1,1‐diphenylprolinol product: (S)‐Tetrahydro‐1‐methyl‐3,3‐diphenyl‐1H,3H‐pyrrolo[1,2‐c][1,3,2]oxazaborole‐borane complex intermediate: oxazaborolidine product: (R)‐2,3‐Dihydro‐1H‐inden‐1‐ol byproduct: 1‐Indanol product: α,α‐diphenyl‐2‐pyrrolidinemethanol product: (R)‐ or (S)‐α,α‐diphenyl‐2‐pyrrolidinemethanol

show abstract