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Optical tweezers. The beam emitted from the laser via a single mode fiber (SMF) is collimated by a 10× microscope lens (MO1). The two mirrors, M1 and M2, direct the laser light into an image relay system (L2 and L3). The laser light is reflected using a dichroic mirror (DM) into a ×100, 1.3 NA immersion objective lens (MO2). Inset is a sample which is placed on the sample stage.
