Focusing properties of composite spiral photon sieve
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2021.126910
Abstract: Abstract We aim to introduce and study a composite spiral photon sieve that is a photon sieve made of two independent and individual segments. Each segment has its characteristics, including hole density, diameter, and the… read more here.
Keywords: properties composite; composite spiral; photon sieve; photon ... See more keywords
Reduction in heat affected zone and recast layer in laser materials processing using a photon sieve lens
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.105911
Abstract: Abstract A laser ablation study was carried out by focusing optical energy via a photon sieve planar diffractive lens and the results are compared with traditional refractive lenses. It was found that the materials processed… read more here.
Keywords: heat affected; photon; layer; photon sieve ... See more keywords
Single-order soft x-ray spectra with spectroscopic photon sieve
Sign Up to like & getrecommendations! Published in 2020 at "Chinese Physics B"
DOI: 10.1088/1674-1056/ab81f0
Abstract: A single-order diffraction transmission grating named spectroscopic photon sieve (SPS) for soft x-ray region is proposed and demonstrated in this paper. The SPS consists of many circular pinholes located randomly, and can realize both free-standing… read more here.
Keywords: order; single order; photon sieve; spectroscopic photon ... See more keywords
High-efficiency square-hole single-mode waveguide photon sieves for THz waves.
Sign Up to like & getrecommendations! Published in 2023 at "Applied optics"
DOI: 10.1364/ao.482840
Abstract: The photon sieve has had the problem of low diffraction efficiency since it was proposed. Dispersion from different waveguide modes in the pinholes also reduces the quality of focusing. To overcome the above drawbacks, we… read more here.
Keywords: single mode; photon sieve; square hole; mode waveguide ... See more keywords
Flexible binary phase photon sieves on polyimide substrates by laser ablation.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.002368
Abstract: A binary phase diffractive optical element photon sieve is fabricated by direct laser ablation of a thin, flexible polyimide substrate with a nanosecond-pulsed ultraviolet laser. The binary phase photon sieve operates at 633 nm and was… read more here.
Keywords: phase photon; photon; photon sieve; laser ablation ... See more keywords