Optical vortex coronagraphy for high-contrast imaging of femtosecond laser filaments

A high-contrast imaging technique for phase objects based on the optical vortex coronagraph (OVC) is proposed. This method offers the unique advantage of background-free imaging due to the introduction of azimuthal phase in the Fourier plane. We employed the OVC method to detect femtosecond laser-in...

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Veröffentlicht in:	Optics letters 2023-12, Vol.48 (24), p.6569-6572
Hauptverfasser:	Liang, Qingqing, Zhang, Qiyuan, Wang, Ming, Mou, Yanfei, Zhang, Enliang, Cheng, Qingqing, Swartzlander, Grover A, Liu, Yi
Format:	Artikel
Sprache:	eng
Schlagworte:	Air plasma Coronagraphs Filaments Fluoroscopic imaging Imaging techniques Lasers Phase objects
Online-Zugang:	Volltext
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