Infrared and optical spectroscopy represents one of the most informative methods in
advanced materials research. As an important branch of modern optical techniques that has …

Near-field infrared spectroscopy by elastic scattering of light from a probe tip resolves optical
contrasts in materials at dramatically subwavelength scales across a broad energy range …

Combined with terahertz (THz) time-domain spectroscopy, THz near-field microscopy based
on an atomic force microscope is a technique that, while challenging to implement, is …

We present a quantitative quasi-analytical model to predict and analyze signals on layered
samples measured by infrared scattering-type scanning near-field optical microscopy. Our …

Graphene nano-optics at terahertz (THz) frequencies (ν) is theoretically anticipated to
feature extraordinary effects. However, interrogating such phenomena is nontrivial, since the …

We analyze the results of scanning near-field infrared spectroscopy performed on thin films
of a-SiO 2 on Si substrate. The measured near-field signal exhibits surface-phonon …

We demonstrate the successful implementation of a terahertz (THz) quantum-well
photodetector (QWP) for effective signal collection in a scattering-type scanning near-field …

Terahertz near-field microscopy (THz-NFM) could locally probe low-energy molecular
vibration dynamics below diffraction limits, showing promise to decipher intermolecular …

We present quantitative coherent measurements of scattering pulses and spectra in
terahertz apertureless near-field microscopes. Broadband near-field image contrasts for …

The use of filling agents for rubber reinforcement is beneficial in various industrial
applications, and several experimental methods have been used to study the effect of fillers …