Abstract
Sulfur-based polymeric glasses are promising alternative low-cost IR materials due to their profoundly high IR transparency. In this Letter, femtosecond-laser-induced refractive index change (RIC) was investigated in one typical sulfurbased polymeric glass material, poly(S-r-DIB), for the first time, to the best of our knowledge. The RIC in the laserengineered region was quantitively characterized, which laid a foundation for phase-type optical element design. By the integration of RIC traces, embedded phase-type micro-optics elements, including Fresnel zone plates, and a Dammann grating were fabricated in bulk poly(S-r-DIB) polymeric glass substrate via the femtosecond laser direct writing technique. The imaging and beam shaping performance were demoed in the near-infrared (NIR) region.
Original language | English |
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Pages (from-to) | 1056-1059 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 48 |
Issue number | 4 |
DOIs | |
State | Published - 15 Feb 2023 |