A non-contact single-fiber optical tweezers and its preparation method

摘要

#$%^&*AU2020102259A420201029.pdf#####ABSTRACT The invention provides a non-contact single-fiber optical tweezers and its preparation method. It is composed of the special optical fiber with the circularly-symmetric distributed core and the symmetrical reflection frustum prepared on its end surface. The frustum structure can fully reflect the light beam transmitted from the symmetrically distributed core of the special optical fiber, and focus it outside the end surface to form a trapping point. The invention can be used for the non-contact trapping, of single micro-particle and can be widely used in the field of single cell manipulation and measurement.2/6 1 -2 Stepi1; Step 2 Al, I, ri L ----------Step 3 '2[ k, -q ----1-- 2 Step 3 1 2 6 FJG.3