Anisotropy of 3D Columnar Coatings in Mid-Infrared Spectral Range

Grinevičiūtė, Lina; Ng, Soon Hock; Han, Molong; Moein, Tania; Anand, Vijayakumar; Katkus, Tomas; Ryu, Meguya; Morikawa, Junko; Vongsvivut, Jitraporn; Tolenis, Tomas; Juodkazis, Saulius

doi:10.20944/preprints202110.0280.v1

Cited by 3 publications

(1 citation statement)

References 24 publications

(33 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This hints at the importance of absorbed energy density W ab in the volume, i.e., J/cm 3 rather than fluence (or dose) J/cm 2 . When the modification is proportional to the instantaneous electron density, n e , the deposited laser energy density in the volume scales as W ab ∝ ne ncr F p ∝ F 2 p , where n cr is the critical electron density at the wavelength of irradiation 26 . This scaling of energy deposition into volume follows a second order dependence W ab ∝ E 2 p , since electron density is proportional to the energy (fluence, intensity) n e ∝ E p .…”

Section: B From Lines With Nano-gaps To Optical Micro-elementsmentioning

confidence: 99%

Nanoscale Printing of Indium-Tin-Oxide by Femtosecond Laser Pulses

Hu¹,

Li²,

Zhao³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

Deposition/printing of materials with sub-1 μm precision and size (cross sections) is required for optical and electrical micro-devices. Crystalline c-ITO (Indium tin oxide) nanostructures were patterned on glass with a precision that formed gaps of 20-50 nm between individual disks or lines of &sim; 250 nm diameter or width. The absorbed energy density [J/cm3] followed the second order dependence on pulse energy. This facilitated high resolution and precision for nanoscale laser writing at the 515 nm laser wavelength. Patterns for optical elements such as circular gratings and micro-disks were laser printed using ITO as a resist. Unexposed amorphous a-ITO was chemically removed in aqueous 1% vol. HF solution. This use of a-ITO as solid-resist is promising for metamaterial and micro-optical applications.

show abstract

Section: B From Lines With Nano-gaps To Optical Micro-elementsmentioning

confidence: 99%

Nanoscale Printing of Indium-Tin-Oxide by Femtosecond Laser Pulses

Hu¹,

Li²,

Zhao³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Polarimeters for the Detection of Anisotropy from Reflectance

Kamegaki,

Khajehsaeidimahabadi,

Ryu

et al. 2024

Micromachines

Self Cite

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 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.

show abstract

Nanoscale Printing of Indium-Tin-Oxide by Femtosecond Laser Pulses

Zhao

et al. 2022

Nanomaterials

Self Cite

View full text Add to dashboard Cite

For constructing optical and electrical micro-devices, the deposition/printing of materials with sub-1 μm precision and size (cross-section) is required. Crystalline c-ITO (indium tin oxide) nanostructures were patterned on glass with sufficient precision to form 20–50 nm gaps between individual disks or lines of ∼250 nm diameter or width. The absorbed energy density [J/cm3] followed a second-order dependence on pulse energy. This facilitated high-resolution and precise nanoscale laser-writing at a laser wavelength of 515 nm. Patterns for optical elements such as circular gratings and micro-disks were laser-printed using ITO as a resist. Unexposed amorphous a-ITO was chemically removed in aqueous 1% vol. HF solution. This use of a-ITO as a solid resist holds promise for metamaterial and micro-optical applications.

show abstract

Anisotropy of 3D Columnar Coatings in Mid-Infrared Spectral Range

Cited by 3 publications

References 24 publications

Nanoscale Printing of Indium-Tin-Oxide by Femtosecond Laser Pulses

Nanoscale Printing of Indium-Tin-Oxide by Femtosecond Laser Pulses

Polarimeters for the Detection of Anisotropy from Reflectance

Nanoscale Printing of Indium-Tin-Oxide by Femtosecond Laser Pulses

Contact Info

Product

Resources

About