Recent development of ultrafast optical characterizations for quantum materials
The advent of intense ultrashort optical pulses spanning a frequency range from terahertz to
the visible has opened a new era in the experimental investigation and manipulation of …
the visible has opened a new era in the experimental investigation and manipulation of …
Giant chiral magnetoelectric oscillations in a van der Waals multiferroic
Helical spin structures are expressions of magnetically induced chirality, entangling the
dipolar and magnetic orders in materials,,–. The recent discovery of helical van der Waals …
dipolar and magnetic orders in materials,,–. The recent discovery of helical van der Waals …
Photoconductivity Multiplication in Semiconducting Few-Layer MoTe2
We report efficient photoconductivity multiplication in few-layer 2H-MoTe2 as a direct
consequence of an efficient steplike carrier multiplication with near unity quantum yield and …
consequence of an efficient steplike carrier multiplication with near unity quantum yield and …
Nanoscale coherent phonon spectroscopy
Coherent phonon spectroscopy can provide microscopic insight into ultrafast lattice
dynamics and its coupling to other degrees of freedom under nonequilibrium conditions …
dynamics and its coupling to other degrees of freedom under nonequilibrium conditions …
Theory of coherent phonons in carbon nanotubes and graphene nanoribbons
We survey our recent theoretical studies on the generation and detection of coherent radial
breathing mode (RBM) phonons in single-walled carbon nanotubes and coherent radial …
breathing mode (RBM) phonons in single-walled carbon nanotubes and coherent radial …
Coherent Lattice Vibrations in Mono- and Few-Layer WSe2
We report the observation of coherent lattice vibrations in mono-and few-layer WSe2 in the
time domain, which were obtained by performing time-resolved transmission measurements …
time domain, which were obtained by performing time-resolved transmission measurements …
A nanopump for low-temperature and efficient solar water evaporation
Water evaporation is a ubiquitous phenomenon in nature and the essential component of
the water cycle on the earth. A high evaporation rate is required for application in …
the water cycle on the earth. A high evaporation rate is required for application in …
Coherent optical phonons in diamond
The authors report femtosecond dynamics of the coherent optical phonon of single crystal
diamond. Sub-10 fs, 395 nm laser pulses excite 40 THz coherent phonons with an …
diamond. Sub-10 fs, 395 nm laser pulses excite 40 THz coherent phonons with an …
Coherent lattice vibrations in single-walled carbon nanotubes
We have generated and detected coherent lattice vibrations in single-walled carbon
nanotubes corresponding to the radial breathing mode (RBM) using ultrashort laser pulses …
nanotubes corresponding to the radial breathing mode (RBM) using ultrashort laser pulses …
Temperature dependence of coherent A1g and Eg phonons of bismuth
Bismuth has been a model material in the study of femtosecond dynamics of coherent lattice
oscillations. The generation mechanism was first proposed to be displacive for the …
oscillations. The generation mechanism was first proposed to be displacive for the …