Near-perfect microlenses based on graphene microbubbles

Microbubbles acting as lenses are interesting for optical and photonic applications such asvolumetric displays, optical resonators, integration of photonic components onto chips, high-resolution spectroscopy, lithography, and imaging. However, stable, rationally designed, and uniform microbubbles on substrates such as silicon chips are challenging because of the random nature of microbubble formation. We describe the fabrication of […]