TY - JOUR
T1 - Brownian motors in the photoalignment of liquid crystals
AU - Kosa, T.
AU - Weinan, E.
AU - Palffy-Muhoray, P.
N1 - Funding Information:
We acknowledge support from AFOSR under grant No. F49620-95-1-0065 (W.E) and from the NSF under ALCOM grant No. 89-DMR20147 and AFOSR MURI grant No. F49620-17-1-0014 (P.P-M.). We are grateful to Prof. A.C. Eringen for the organization of and the opportunity to participate in the Eringen Medal Symposium in honor of P.G. de Gennes.
PY - 2000/6/1
Y1 - 2000/6/1
N2 - In the photoalignment of liquid crystals with dissolved dyes or in the presence of dye doped alignment layers, light can cause reorientation of the liquid crystal director against a restoring elastic torque essentially without the transfer of angular momentum. We show that this phenomenon originates in an orientational ratchet mechanism, where, under photoexcitation, the dye molecules act as rotors of a Brownian motor.
AB - In the photoalignment of liquid crystals with dissolved dyes or in the presence of dye doped alignment layers, light can cause reorientation of the liquid crystal director against a restoring elastic torque essentially without the transfer of angular momentum. We show that this phenomenon originates in an orientational ratchet mechanism, where, under photoexcitation, the dye molecules act as rotors of a Brownian motor.
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U2 - 10.1016/S0020-7225(99)00107-X
DO - 10.1016/S0020-7225(99)00107-X
M3 - Conference article
AN - SCOPUS:0033741096
VL - 38
SP - 1077
EP - 1084
JO - International Journal of Engineering Science
JF - International Journal of Engineering Science
SN - 0020-7225
IS - 9
T2 - The Eringen Symposium Dedicated to Pierre-Gilles De Gennes - 36th Annual Technical Meeting of the Society of Engineeing Science
Y2 - 27 September 1998 through 30 September 1998
ER -