Behnam Khosravi

Title: Behnam Khosravi and Polarization-Selective Nanoparticle Trapping.

Introduction

Behnam Khosravi is an inventor associated with Victoria, Canada. His patent work concerns optical tweezer methods for trapping and detecting nanoparticles using polarization-selective reflection.

Latest Patents

Khosravi is named on one patent, 1 patent: “Polarization Selective Reflection Geometry Trapping of Nanoparticles.” The invention describes optical tweezer methods and apparatus that operate in reflection mode, using polarization selection to distinguish the input laser signal from optical signals associated with trapping.

In one approach, an aperture in a conductive film, such as gold, has polarization-dependent reflectance because of its asymmetry. The reflected beam is polarized differently from the incident beam, allowing scattered light from the aperture to be distinguished. Another approach detects polarizing nanoparticles, such as nanorods, through transmitted or reflected light whose polarization differs from that of the incident beam.

Career Highlights

The patent highlights Khosravi’s contribution to optical trapping technology, particularly techniques for separating trapping-related optical signals from the incident laser signal. This polarization-based approach can support nanoparticle detection in reflection or transmission configurations.

Collaborations

Khosravi’s coworker on the invention was Reuven Gordon.

Conclusion

Behnam Khosravi’s patent describes polarization-selective methods for trapping and detecting nanoparticles, advancing optical tweezer techniques through reflection-based signal separation.