WebThis paper describes experimental studies of one-dimensional thermal ratchets implemented with the holographic optical trapping technique applied to fluid-borne colloidal spheres. These studies demonstrate the complementary roles of global spatiotemporal symmetry and local dynamics in establishing the direction of ratchet-induced motion and ... WebThis website uses cookies to deliver some of our products and services as well as for analytics and to provide you a more personalized experience.
Flux reversal in a two-state symmetric optical thermal ratchet
WebNov 20, 2024 · Conducted thermal modeling-analysis & hands-on experimental research to create novel material systems formulated into 80+ thermal/optical performance coatings … WebWe present an optical realization of a thermal ratchet. Directed motion of Brownian particles in water is induced by modulating in time a spatially periodic but asymmetric optical potential. The net drift shows a maximum as a function of the modulation period. The experimental results agree with a simple theoretical model based on diffusion. iodination of propane
Feynman’s ratchet is built at last using 19 optical tweezers
WebFeb 27, 1995 · We present an optical realization of a thermal ratchet. Directed motion of Brownian particles in water is induced by modulating in time a spatially periodic but … WebMar 1, 1995 · Abstract and Figures We present an optical realization of a thermal ratchet. Directed motion of Brownian particles in water is induced by modulating in time a spatially … WebOct 1, 2024 · The proposed optical ratchet exhibits remarkable advantages such as flexible design, easy control, high motion speed, large step distance and versatile motion path. The experimental results show that the average velocity of above 28 μm/s can be easily achieved, which is highly desirable in optical Brownian ratchet. iodination of alkanes