New paper about structured THz radiation: Imaging with Airy beam

New paper by Rusnė Ivaškevičiūtė-Povilauskienė et. al just published in Light Science and Applications journal by Nature publishing group entitled ”Terahertz structured light: nonparaxial Airy imaging using silicon diffractive optics”. The work demonstrates the structured nonparaxial THz light in the form of Airy, Bessel, and Gaussian beams generated in a compact way using exclusively silicon diffractive optics prepared by femtosecond laser ablation technology. The structured THz light consistently outperforms the conventional one in resolution and contrast.

The findings open new frontiers of structured light applications in imaging and inverse scattering problems. Imaging of stacked graphene layers with THz Airy beam revealed potential to be applied for inspection of 2D materials quality.

The article is freely available under Open Access license and can be reached through the DOI address: https://doi.org/10.1038/s41377-022-01007-z


New study on formation and drift of space-charge domains with velocity of sound in n-type GaN

New paper by Roman Balagula et al. under the title ”Space-charge domains in n-type GaN epilayers under pulsed electric field” is published in the Applied Physics Letters.

The experimental work investigates the formation and drift of space-charge domains with velocity of sound in n-type GaN. The findings defines the constraints
for the design of GaN-based power electronic devices.

The paper can be reached through this DOI: https://doi.org/10.1063/5.0098951