Frequency induced rotation of high contrast angular intensity fringes from an uncoated SPP device

Published on 2020-02-13T14:26:40Z (GMT) by
Angular intensity fringes are generated by reflecting laser light from an uncoated spiral phase plate (SPP) device. As the laser frequency going into the device is tuned, the fringes rotate. Measured transverse fringe patterns match their theoretical predicted values. They have unity contrast, and their measured intensity varies with laser frequency in a fashion similar to a Fabry-Perot etalon. This effect can be used to enable new miniature devices for angle metrology, imaging, and microscopy.

Cite this collection

Rumala, Yisa; McMahon, Matthew (2020): Frequency induced rotation of high contrast angular intensity fringes from an uncoated SPP device. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.4742336