title: Effect of pressure on the dynamics of the photostimulated orientational ordering transition in a liquid crystal.
abstract: We have investigated the influence of the applied pressure on the shift in the photostimulated phase transition temperature and the dynamics of the system to undergo such a phase transition. The shift is seen to decrease with increasing pressure, a feature that can be countered, to a certain extent, by increase in the intensity of the light used. Whereas the time scales of the system to undergo such a transition increases with pressure, the thermal back relaxation process to recover the original phase occurs faster at elevated pressures. We propose a simple argument to explain these observations.
authors.affiliation: Centre for Liquid Crystal Research, Jalahalli, Bangalore 560 013, India.
authors.forename: S Krishna
authors.initials: SK
authors.lastname: Prasad
authors.forename: Vivek Kumar
authors.initials: VK
authors.lastname: Gupta
authors.forename: D S Shankar
authors.initials: DS
authors.lastname: Rao
authors.forename: Chethan V
authors.initials: CV
authors.lastname: Lobo