Dr.Gurumurthy Hegde, Gothenburg University,Gothenburg, Sweden
Peer-reviewed articles
In 2004
1. “Influence of a Long-Chain Alkane on the Photo-Induced Nematic-Isotropic Transition”
Geetha G.Nair, S.Krishna Prasad, and Gurumurthy Hegde, Physical Review E, 69, 021708, 2004.
2. “Polymer Network as a Template for Control of Photoconductivity of a Liquid Crystal
Semiconductor”
S.Krishna Prasad, Geetha G.Nair, Gurumurthy Hegde, Uma S.Hiremath, and C.V.Yelamaggad, Liquid Crystals, 31, 1265, 2004.
In 2005
3. “Dynamic Self-Assembly of the Liquid Crystalline Smectic-A Phase”
S.Krishna Prasad, Geetha G.Nair, and Gurumurthy Hegde, Advanced Materials, 17, 2086, 2005.
4. “Dual Frequency Addressable Optical Device”
Gurumurthy Hegde, Geetha G.Nair, S.Krishna Prasad, and C.V.Yelamaggad, Journal of Applied Physics, 97, 093105 (2005).
5. “Photo Induced Effects in Nematic Liquid Crystals (Review Article)”
S.Krishna Prasad, Geetha G.Nair, Gurumurthy Hegde, K.L.Sandhya, D.S.Shankar Rao, Chethan V.Lobo, and C.V.yelamaggad, Phase Transitions, 78, 443, 2005.
In 2006
6. “Investigations of the Opto-Dielectric Effects in the Vicinity of the Smectic-A-Smectic-CA*
Transition”
Geetha G.Nair, Gurumurthy Hegde, S.Krishna Prasad, and Y.S.Negi, J.Phys : Cond Matter, 18, 9415, 2006.
7. “Photoinduced Effects in the Vicinity of the Smectic-A-Smectic-CA* Transition; Polarization, Tilt
Angle, And Response Time Studies”
Geetha G.Nair, Gurumurthy Hegde, S.Krishna Prasad, Chethan V.Lobo, and Y.S.Negi, Physical Review E, 73, 011712, 2006.
In 2007
8. “Evidence of Worm-like micellar behavior in Chromonic liquid Crystals: Rheological, X-ray and
Dielectric Studies”
S.Krishna Prasad, Geetha.G.Nair, Gurumurthy Hegde and V.Jayalaxmi, J.Phys.Chem B , 111 (33), 9741, 2007.
9. “Non-Equilibrium Liquid Crystalline Layered Phase Stabilized by Light”
S. Krishna Prasad, Geetha G.Nair, and Gurumurthy Hegde, J. Phys. Chem B, 111, 345,2007.
10. “Electrooptical modes of ferroelectric liquid crystal display based on bi-and multistability effects”
E.P.Pozhidaev, Gurumurthy Hegde, Xu.Peizhi, V.G.Chigrinov et al, Euro Display, S11-1, 191, 2007.
In 2008
11. “Electrically Controlled Birefringence Colors in Deformed Ferroelectric Liquid Crystals”
Gurumurthy Hegde, Peizhi Xu, E.P.Pozhidaev, V.G.Chigrinov, H.S.Kwok, Liquid Crystals, 35, 1137-1144, 2008.
12. “Plasma Beam Alignment Technique for Ferroelectric Liquid Crystals”
Gurumurthy Hegde, Oleg.Yaroshchuk, R.Kravchuk, A.Murauski, V.G.Chigrinov, H.S.Kwok, Journal of the SID, 16/10, 1075-1079, 2008.
13. “Electrically controlled birefringent colors of Smectic C* Deformed Helix Ferroelectric Liquid
Crystal Cells”
E.P.Pozhidaev, Gurumurthy Hegde, Peizhi Xu, V.G.Chigrinov, H.S.Kwok, Ferroelectrics, 365, 35-38, 2008.
14. “Inherent Continuous, Hysteretic Free and Memorized Gray Scale of FLC Display Cells Based on
Bi- and Multistability Effects”
E.P.Pozhidaev, V.G.Chigrinov, Gurumurthy Hegde, H.S.Kwok, Ferroelectrics, 364, 95-101, 2008.
In 2009
15. "Dark orientational relaxation to "Upwards" (dark self-assembled) of photo induced anisotropy in
the amorphous layers of photochemically stable sulfuric azo-dyes",
Gurumurthy Hegde, V.M.Kozenkov, V.G.Chigrinov, H.S.Kwok, Submitted to JSID, 2009.
16. “Synthesis and Photoswitching Properties of Bent Shaped Liquid Crystals Containing Azobenzene
Monomers”
Md.Lutfor Rehman, S.Kumar, C.Tschierske, G.Israel, Gurumurthy Hegde, Liquid Crystals, Vol 36/4, 397-407, 2009.
17. “Multistable electrooptical modes in Ferroelectric Liquid Crystals”
E.P.Pozhidaev, V.G.Chigrinov, Gurumurthy Hegde, and Peizhi Xu, Journal of the SID, 17/1, 53-59, 2009.
18. “Photoisomerization in Photoaligned azodyes exhibiting excellent photostability”
Gurumurthy Hegde, V.M.Kozenkov, V.G.Chigrinov, H.S.Kwok, MCLC, Vol 507, 41-50, 2009.
19. “Light scattering of short helix pitch Ferroelectric Liquid Crystals”
E.P.Pozhidaev, Gurumurthy Hegde, V.G.Chigrinov, A.Murauski, H.S.Kwok,V.V. Vashchenko, A.I. Krivoshey, MCLC, Vol 510, 12-20, 2009.
20. ‘’Synthesis and characterization of bent shaped azobenzene monomers:Guest-Host effects in
liquid crystals with azo dyes for optical image storage devices’’
Md.Lutfor Rehman, Gurumurthy Hegde, S.Kumar, C.Tschierske, V.G.Chigrinov, Optical Materials, Vol 32, 176-183, 2009.
21. ‘’Photo-controlled confirmation-assisted permanent optical storage device employing a polymer
network liquid crystal’’
V.Jayalaxmi, Gurumurthy Hegde, G.G.Nair, S.K.Prasad, Phys.Chem.Chem.Phys, Vol 11, 6450-6454, 2009.
Peer-reviewed conference contributions
In 2004
22. “Photo Induced Effects in Nematic Liquid Crystal”
S. Krishna Prasad, Geetha G. Nair, Gurumurthy Hegde, K. L. Sandhya, D. S. Shankar Rao, Chethan V. Lobo, and C. V. Yelamaggad, Proceedings of the National Conference on Liquid Crystals, 11, 11, 2004.
In 2006
23. “Photo Induced Effects in Liquid Crystals”
Gurumurthy Hegde, Proceedings of the Eighth International Conference on Optoelectronics, Fiber Optics and Photonics, 1, 2006.
24. “Dynamic Self-Assembly of the Liquid Crystalline Smectic-A Phase”
S.Krishna Prasad, Geetha G.Nair, and Gurumurthy Hegde, Proceedings of National Conference on Emerging Trends in Physics, Electronics and Engineering Sciences, 283, 2006.
In 2007
25. “Photoalignment Properties of Brilliant Yellow Dye”
O.Yaroshchuk, Gurumurthy Hegde, V.G.Chigrinov, H.S.Kwok, H.Hasebe, and H.Takatsu, IDW-07, Vol 3, 1665, 2007.
26. “Electro-Optical Modes of Multistable Ferroelectric Liquid Crystal Display Cells”
E.P.Pozhidaev, V.G.Chigrinov, Gurumurthy Hegde, Peizhi Xu, H.S.Kwok, IDW-07, 3, 1589, 2007.
27. “New Azo-dyes for Photoalignment: Exploring the New Path”
Gurumurthy Hegde and V.G.Chigrinov, Proceedings of the International Conference and Exhibition on Nanotechnolgy and Advanced Materials, 11-13 December, 2007.
In 2008
28. “Investigation of Photo Alignment Properties of New Azo Dyes and Applications”
Gurumurthy Hegde, Tao Du, V.G.Chigrinov, H.S.Kwok, IDW’08, 571-572, 2008.
29. “Photoisomerization Studies on Disc Shaped Azo Dyes:Characteristic Properties and
Applications”
Gurumurthy Hegde, M.R.Lutfor, V.G.Chigrinov, H.S.Kwok, IDW’08, 569-570, 2008.
30. “Recent Developments in Photo Alignment Technology:Alignment Properties of Novel Azo Dye
CD-1”
Gurumurthy Hegde, V.G.Chigrinov, H.S.Kwok, H.Hasebe, H.Takatsu, SID’08 Digest, 1795-1797, 2008.
31. “Alignment of Ferroelectric Liquid Crystals with the Substrates Processed by Plasma-Beam”
Gurumurthy Hegde, A.Murauski, V.G.Chigrinov, H.S.Kwok, O.Yaroshchuk, R.Kravchuk, A.Dobrovolskyy, SID’08 Digest, 1788-1791, 2008.
Overview articles, book chapters, books
Some of my photoalignment work is published by Prof.Chigrinov in his recent book ‘’Photoalignment of Liquid Crystalline Materials:Physics and Applications’’.
1. “Photo Induced Effects in Nematic Liquid Crystals (Review Article)”
S.Krishna Prasad, Geetha G.Nair, Gurumurthy Hegde, K.L.Sandhya, D.S.Shankar Rao, Chethan V.Lobo, and C.V.yelamaggad, Phase Transitions, 78, 443, 2005.
