Luminary Micro is a Compact Specimen Photoexcitation System (CPXS) for JEOL TEMs. It is composed of a modulated laser, a compact optical delivery system, an inlet port, and a mirror. With this add-on, users can direct and focus the laser output onto the TEM sample in situ. Luminary Micro can induce a rich variety of reactions and dynamic processes in the specimen, thanks to its <40 μm FWHM focus size, adjustable peak power up to 3 W, and the modulated pulse widths ranging from a few microseconds to seconds. With Luminary Micro, users can study laser-induced phenomena in situ using fast cameras. Combined with IDES/JEOL EDM fast shutter and/or Relativity subframing systems, Luminary Micro allows users to perform time-resolved studies using pump-probe methods in the microsecond time scale. The extremely compact footprint of the system allows easy installation without affecting the TEM resolution. The user can heat specimens to thousands of degrees C while keeping the freedom to use the specimen holder of your choice.