Piece of Cake: Arrays of Long Nanotubes May Help Measure Terahertz Laser Power (IMAGE)

National Institute of Standards and Technology (NIST)

Piece of Cake: Arrays of Long Nanotubes May Help Measure Terahertz Laser Power

Caption

"Cupcakes" of vertically aligned carbon nanotube arrays (VANTAs) grown on silicon, which appears blue in the photo. A chunk of VANTA can be sliced from the silicon with a razor blade and, using the blade as a spatula, easily moved to the top of a laser power detector. The very dark nanotube coating absorbs terahertz laser light.

Credit

Lehman/NIST

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