Direct live cell imaging using large-scale nanolaser array

We fabricated an array of 441 photonic crystal nanolasers, and applied it to label-free live cell imaging. Since the mechanical strength of the nanolaser array was improved by bonding on a glass substrate, the imaging area was expanded from previous 25 μm² to 100 μm². We successfully acquired cell images, which should reflect the intracellular and/or the attachment conditions.