Trapping A Rainbow (IMAGE)

Lehigh University

Trapping A Rainbow

Caption

Microscope images of graded gratings with different gradients. In this measurement, three filters are employed: (a) A multi-band filter (Semrock, transmission bands centered at 542nm and 639nm). (b) A green filter centered at 546nm (bandwidth 6nm). (c) A red filter centered at 655nm (bandwidth 12nm).

Credit

Filbert J. Bartoli, Lehigh University

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