Development of compressed ultrafast optical imaging for single-shot observation of nonlinear light-matter interactions

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Many important physical mechanisms are manifested in ultrafast optical phenomena that are often either non-repeatable or difficult-to-reproduce. Single-shot ultrafast optical imaging is the only viable solution to record the entire process of these events within the duration of its occurrence. Among existing approaches, compressed ultrafast photography (CUP) has emerged to be a promising technique. Exhibiting the world's fastest camera, CUP has an imaging speed of 10 trillion frames per second and can capture both spatial and temporal information in a single camera exposure. However, restricted by operational spectrum and image speeds, existing CUP systems have a limited application scope in imaging nonlinear light-matter interactions. In response to these limitations, in this CRD grant application, we propose to develop the next-generation of CUP systems for single-shot multi-parameter ultrafast optical imaging of nonlinear light-matter interactions at unprecedented imaging speeds. In collaboration with two Canadian industrial partners, we plan to develop three new CUP prototypes upon their existing commercial products and core expertise, which will enable, for the first time, sensing the refractive index perturbation, imaging multiple wavelengths simultaneously from the visible-to-near-infrared spectrum, and reaching 100 trillion frames per second imaging speed. Targeting a billion-dollar potential market in multiple fields of optics, the proposed systems hold great commercial potential. Capitalizing on the core expertise of both companies, these new systems are highly complementary to their existing products. Scientifically, these systems will greatly enhance the CUP camera's specifications in contrasts, operational spectrum, and imaging speeds, which in turn, will allow unprecedented observation of ultrafast light-matter interactions with applications in optical physics, materials characterization, and data storage. Exerting great social-economic significance to Canada, this CRD application will also create excellent opportunities to train and retain HQP, promote knowledge-based economy, and solidify Canada's position as a world leader in photonics and optics.