In-situ opto-twistronics with the optical quantum twisting microscope

Quantum twisting microscope (QTM) is a new and powerful platform to study in-situ twistronics and momentum-resolved band structure imaging of 2D materials. Further combining it with light allows probing the optical and optoelectronic properties of two layers of 2D materials stacked on top of each other with a tunable twist angle. In this talk, I will present the development of an optical quantum twisting microscope which is equpped with both vis-NIR lasers and home built Fourier transform infrared spectrometer. Light induced tunneling photocurrent is collected to study the optoelectronic properties of different vertical tunnel junctions with in-situ tunable twisted 2D materials stacks.