We show that through the use of optical aberrations, a reflective cylindrical beam expander can be properly adjusted to perform as a tunable ultra-broadband continuous phase modulation device. We demonstrate the effectiveness of such a device for the case of a net cubic phase modulation that is used to generate ultra-broadband white light 2D Airy beams. In this case, the nature of our device enables all spectral components to copropagate, following the same accelerating trajectory. The scalability of our approach, both in respect of input power and bandwidth, makes it possible to be used in any part of the electromagnetic spectrum.
© 2018 Optical Society of AmericaFull Article | PDF Article
CorrectionsDimitris Mansour and Dimitris G. Papazoglou, "Ultra-broadband tunable continuous phase masks using optical aberrations: publisher’s note," Opt. Lett. 43, 5668-5668 (2018)
2 November 2018: A typographical correction was made to Eq. (2).
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