title: The bifoil photodyne: a photonic crystal oscillator.
abstract: Optical tweezers is an example how to use light to generate a physical force. They have been used to levitate viruses, bacteria, cells, and sub cellular organisms. Nonetheless it would be beneficial to use such force to develop a new kind of applications. However the radiation pressure usually is small to think in moving larger objects. Currently, there is some research investigating novel photonic working principles to generate a higher force. Here, we studied theoretically and experimentally the induction of electromagnetic forces in one-dimensional photonic crystals when light impinges on the off-axis direction. The photonic structure consists of a micro-cavity like structure formed of two one-dimensional photonic crystals made of free-standing porous silicon, separated by a variable air gap and the working wavelength is 633 nm. We show experimental evidence of this force when the photonic structure is capable of making auto-oscillations and forced-oscillations. We measured peak displacements and velocities ranging from 2 up to 35 microns and 0.4 up to 2.1 mm/s with a power of 13 mW. Recent evidence showed that giant resonant light forces could induce average velocity values of 0.45 mm/s in microspheres embedded in water with 43 mW light power.
authors.affiliation: Visual Psychophysics and Perception Laboratory, School of Optometry, University of Montreal, C.P. 6128 succ. Centre Ville, Montreal, Quebec, Canada.
authors.forename: J E
authors.initials: JE
authors.lastname: Lugo
authors.affiliation: Visual Psychophysics and Perception Laboratory, School of Optometry, University of Montreal, C.P. 6128 succ. Centre Ville, Montreal, Quebec, Canada.
authors.forename: R
authors.initials: R
authors.lastname: Doti
authors.affiliation: 1] Visual Psychophysics and Perception Laboratory, School of Optometry, University of Montreal, C.P. 6128 succ. Centre Ville, Montreal, Quebec, Canada [2] Instituto Nacional de Astrofísica, Óptica y Electrónica, Calle Luis Enrique Erro #1. Tonantzintla, Puebla, México.
authors.forename: N
authors.initials: N
authors.lastname: Sanchez
authors.affiliation: Posgrado de Ingeniería Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, Col. Vicentina 09340, Mexico D.F.
authors.forename: M B
authors.initials: MB
authors.lastname: de la Mora
authors.affiliation: Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Temixco 62580, Morelos, México.
authors.forename: J A
authors.initials: JA
authors.lastname: del Rio
authors.affiliation: Visual Psychophysics and Perception Laboratory, School of Optometry, University of Montreal, C.P. 6128 succ. Centre Ville, Montreal, Quebec, Canada.
authors.forename: J
authors.initials: J
authors.lastname: Faubert