2016年8月10日 · Rotational anisotropy nonlinear harmonic generation (RA-NHG) is an all-optical technique by which crystallographic, magnetic, and electronic symmetries of crystalline materials’ bulk surface and interfaces may be examined. It also allows characterization of nanostructures and biological tissue as well as imaging applications.

2023年4月20日 · Recently, rotational anisotropy SHG (RA-SHG) technology has been applied to study the antiferromagnetic order 6,7,10 and even ME coupling where the variation of the SHG asymmetry was...

Rotational anisotropy nonlinear harmonic generation (RA-NHG) is an all-optical technique by which crystallographic, magnetic, and electronic symmetries of crystalline...

2018年10月4日 · We describe a novel scheme of detecting rotational anisotropy second harmonic generation (RA-SHG) signals using a lock-in amplifier referenced to a fast scanning RA-SHG apparatus.

2023年9月28日 · To resolve the magnetic phases for both out-of-plane and in-plane spin components, we leverage the symmetry sensitivity of SHG by performing the rotational anisotropy (RA) measurements in which...

2020年6月8日 · Using 1 T − TaS 2, we demonstrate here that rotational-anisotropy second harmonic generation (RA-SHG) is not only a sensitive technique for the detection of broken mirror symmetry, but also that it can differentiate between mirror symmetry-broken structures of opposite planar chirality. We also show that our analysis is applicable to a wide ...

2021年9月13日 · We show the ferro-rotational nature of the commensurate charge density wave (CCDW) in and track its dynamic modulations by temperature-dependent and time-resolved electric quadrupole rotation anisotropy-second harmonic generation (EQ RA-SHG), respectively.

2018年12月10日 · We describe a novel scheme of detecting rotational anisotropy-second harmonic generation (RA-SHG) signals using a lock-in amplifier referenced to a fast scanning RASHG apparatus. The method directly measures the nth harmonics of the scanning frequency corresponding to SHG signal components of Cn sym …

Rotation anisotropy SHG (RA-SHG) is a technique that is able to monitor the crystal structure and the microgeometry of the surface of centrosymmetrical mediums which is often not available using linear diagnostic optical methods.

2022年1月20日 · Rotational-anisotropy second-harmonic generation (RA-SHG) revealed restoration of twin degeneracy in heat-treated samples.