Space variant fiber nanogratings induced by femtosecond laser direct writing

Lu, Jiafeng; Teng, Linping; Zhai, Qinxiao; Wang, Chunhua; Lancry, Matthieu; Dai, Ye; Zeng, Xianglong

doi:10.1016/j.apsusc.2023.158787

Cited by 2 publications

(2 citation statements)

References 40 publications

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“…The linear-grating-like patterns investigated by polariscopy in Section 3.1 were larger than the focal diameter. Here, we analyse the orientation of grating-like laser-ablated ripples on the surface of Si ( Figure 6 ) [ 20 ]; such ripples with a changing orientation can also be inscribed inside transparent materials [ 21 ]. Ripples have periods comparable to or smaller than the focal diameter.…”

Section: Resultsmentioning

confidence: 99%

Polarimeters for the Detection of Anisotropy from Reflectance

Kamegaki,

Khajehsaeidimahabadi,

Ryu

et al. 2024

Micromachines

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Polarimetry is used to determine the Stokes parameters of a laser beam. Once all four S0,1,2,3 parameters are determined, the state of polarisation is established. Upon reflection of a laser beam with the defined S polarisation state, the directly measured S parameters can be used to determine the optical properties of the surface, which modify the S-state upon reflection. Here, we use polarimetry for the determination of surface anisotropies related to the birefringence and dichroism of different materials, which have a common feature of linear patterns with different alignments and scales. It is shown that polarimetry in the back-reflected light is complementary to ellipsometry and four-polarisation camera imaging; experiments were carried out using a microscope.

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Section: Resultsmentioning

confidence: 99%

Polarimeters for the Detection of Anisotropy from Reflectance

Kamegaki,

Khajehsaeidimahabadi,

Ryu

et al. 2024

Micromachines

View full text Add to dashboard Cite

show abstract

“…3.1 were larger than the focal diameter. Here, we analyse the orientation of a grating-like laser ablated ripples on the surface of Si (Figure 6) [19]; such ripples with changing orientation can also be inscribed inside transparent materials [20]. Ripples have periods comparable or smaller than the focal diameter.…”

Section: Azimuthaly Changing Orientation: Laser Ablated Ripplesmentioning

confidence: 99%

Polarimeter for Detection of Anisotropy from Reflectance

Kamegaki,

Khajehsaeidimahabadi,

Ryu

et al. 2024

Preprint

View full text Add to dashboard Cite

Polarimetry is used to determine the Stokes parameters of a laser beam. Once all four S0,1,2,3 parameters are determined, the state of polarisation is established. Upon reflection of a laser beam with the defined S polarisation state, the directly measured S parameters can be used to determine the optical properties of the surface, which modified the S-state upon reflection. Here, we demonstrate polarimetry for the determination of surface anisotropies related to birefringence and dichroism from different materials, which have a common feature of linear patterns of different alignments and scales. It is shown that polarimetry in the back-reflected light is complementary to ellipsometry and four-polarisation camera imaging.

show abstract

Space variant fiber nanogratings induced by femtosecond laser direct writing

Cited by 2 publications

References 40 publications

Polarimeters for the Detection of Anisotropy from Reflectance

Polarimeters for the Detection of Anisotropy from Reflectance

Polarimeter for Detection of Anisotropy from Reflectance

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