● portfotolio ● Dye lasers without feedback in random shapes by Retrotech

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Retrotech: R6G 'fingernail polish'

Retrotech: slide with clear R6G

Retrotech: lasing with close target

Retrotech: IMG_1964

Retrotech: IMG_1961

Retrotech: Fluorescein

Retrotech: laser

Retrotech: close view same side with output

Retrotech: cover slip laser -- better focus, but spot not as bright

Retrotech: marker dye laser