Analytical approach of ordinary frozen waves for optical trapping and micromanipulation

Author(s)

Ambrosio, Leonardo Andre ; Zamboni-Rached, Michel

• Document type: Journal article
• Source: APPLIED OPTICS; v. 54, n. 10, p. 10-pg., 2015-04-01.

Abstract

The optical properties of frozen waves (FWs) are theoretically and numerically investigated using the generalized Lorenz-Mie theory (GLMT) together with integral localized approximation. These waves are constructed from a suitable superposition of equal-frequency ordinary Bessel beams and are capable of providing almost any desired longitudinal intensity profile along their optical axis, thus being of potential interest in applications in which intensity localization may be used advantageously, such as in optical trapping and micromanipulation systems. In addition, because FWs are composed of nondiffracting beams, they are also capable of overcoming the diffraction effects for longer distances when compared to conventional (ordinary) beams, e.g., Gaussian beams. Expressions for the beam-shape coefficients of FWs are provided, and the GLMT is used to reconstruct their intensity profiles and to predict their optical properties for possible biomedical optics purposes. (C) 2015 Optical Society of America (AU)

• FAPESP's process: 14/04867-1 - Non-diffracting waves, frozen waves and diffraction-attenuation resistant beams for millimeter and micrometer applications
• Grantee: Leonardo Andre Ambrosio
• Support Opportunities: Regular Research Grants
• FAPESP's process: 13/26437-6 - Non-diffracting waves in dispersive absorbing media
• Grantee: Michel Zamboni Rached
• Support Opportunities: Scholarships abroad - Research