Title Designing 2D optical tweezers array with a single laser beam using 1D defective photonic crystals Type of Research Presentation Keywords Optical tweezers, photonic crystal Abstract in this work we introduced a 1D photonic crystal with aspecial graded index defect layer with the structure of (AB)4C(AB)4. ... Researchers Kazem Jamshidi-Ghaleh (First Researcher)، Farzaneh Bayat (Second Researcher)