ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,699,035, issued on Aug. 4.
"Polarization selective reflection geometry trapping of nanoparticles" was invented by Reuven Gordon (Victoria, Canada) and Behnam Khosravi (Victoria, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Optical tweezer methods and apparatus that operate in reflection mode use polarization selection to isolate an input laser signal from optical signals associated with trapping. A trapping aperture or apertures can be defined in a conductive film such as a gold film have a polarization-dependent reflectance due to asymmetry of the aperture, and a reflected beam is polarized differently than an incident beam. Polarization of sca...