LASERS
TEEM Photonics 266 nm microchip laser
A teardown of a compact, deep-UV, passively Q-switched microchip laser, and a look at how a tiny flat-flat cavity makes a clean beam.
Projects
Lasers · Batteries · Microscopy · Spectroscopy · Night Vision
BATTERIES
Automated environmental-chamber battery cycler
A thermally-controlled chamber for cycling parallel battery strings, with balanced harnessing and per-cell Kelvin sensing for studying cell performance across temperature.
MICROSCOPY
The Frankenscope: a microscopic multi-tool
A Mitutoyo FS70L4 core on a PI six-axis piezo hexapod, with switchable 1064 nm and 266 nm laser delivery.
SPECTROSCOPY
Ocean Optics USB2000 firmware update
A compilation of info about Ocean Optics USB2000 spectrometers, and a board-level guide to reflashing their firmware EEPROM.
NIGHT VISION
Mullard / Philips XX1332 — giant Gen 2 intensifier
A large-format Gen 2+ image intensifier tube built into a usable night-vision device, in a quick 3D-printed modular housing.
SOON
More to come
More build logs and write-ups are on the way.