Uploaded January 2024 | Updated September 2026, 2 days ago
#molecularswitch #photochromic #laser
The photochromic molecular switch consists of a 650 nm and a 405 nm laser, two corresponding drivers, a voltage regulator, a temperature sensor, and a beam splitter. The switch is controlled by an Arduino Pro Micro. The 3D-printed holders for the lasers, the beam splitter, and the quartz cuvette are mounted directly on the customized PCB.
Edit: Photochromism in spiropyran works by breaking the C-O bond, converting the spiropyran into its color-emitting merocyanine form.
#molecularswitch #photochromic #laser
The photochromic molecular switch consists of a 650 nm and a 405 nm laser, two corresponding drivers, a voltage regulator, a temperature sensor, and a beam splitter. The switch is controlled by an Arduino Pro Micro. The 3D-printed holders for the lasers, the beam splitter, and the quartz cuvette are mounted directly on the customized PCB.
Edit: Photochromism in spiropyran works by breaking the C-O bond, converting the spiropyran into its color-emitting merocyanine form.










