Flow Alters the Interfacial Reactions of Upconversion Nanocrystals Probed by In Situ Sum Frequency Generation
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Materials Interfaces"
DOI: 10.1002/admi.201902046
Abstract: Particle moving is a fundamental phenomenon of colloidal nanoparticles (NPs), but its influence on the interfacial interaction is far from been clarified. Herein, by mimicking the particle moving of upconverting fluoride NPs in a flowing… read more here.
Keywords: interfacial reactions; frequency generation; situ sum; particle moving ... See more keywords
Effect of Ca2+ to Sphingomyelin Investigated by Sum Frequency Generation Vibrational Spectroscopy.
Sign Up to like & getrecommendations! Published in 2017 at "Biophysical journal"
DOI: 10.1016/j.bpj.2017.04.026
Abstract: The interactions between Ca2+ ions and sphingomyelin play crucial roles in a wide range of cellular activities. However, little is known about the molecular details of the interactions at interfaces. In this work, we investigated… read more here.
Keywords: frequency generation; sum frequency; vibrational spectroscopy; spectroscopy ... See more keywords
Dynamic modeling of a terahertz quantum cascade laser based on difference frequency generation
Sign Up to like & getrecommendations! Published in 2018 at "Optik"
DOI: 10.1016/j.ijleo.2017.11.126
Abstract: Abstract In this paper, we consider a terahertz quantum cascade laser based on difference frequency generation and investigate theoretically the transient dynamics of its quantum cascade laser mid-infrared pumps and terahertz wave generated via intra-cavity… read more here.
Keywords: frequency generation; quantum cascade; difference frequency;
Difference Frequency Generation-based ultralow threshold Optical Bistability in graphene at visible frequencies, an experimental realization
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2019.03.167
Abstract: Abstract We experimentally show that Difference Frequency Generation (DFG) can efficiently occur in a graphene ink for a visible pump-probe radiation in consequence of the second order nonlinear optical response of graphene. DFG induces the… read more here.
Keywords: optical bistability; frequency generation; generation; graphene ... See more keywords
Multicolor Chemical Imaging by Sum Frequency Generation Imaging Microscopy of Monolayers on Metal Surfaces
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.0c02038
Abstract: Sum frequency generation imaging microscopy (SFG-IM) is a unique surface-specific technique that can detect the spatial distributions of differing monolayer species based on chemical contrast. Here... read more here.
Keywords: generation imaging; frequency generation; microscopy; sum frequency ... See more keywords
Symmetric Raman Tensor Contributes to Chiral Vibrational Sum-Frequency Generation from Binaphthyl Amphiphile Monolayers on Water: Study of Electronic Resonance Amplitude and Phase Profiles
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.6b12664
Abstract: Heterodyne-detected vibrationally electronically doubly resonant chiral sum-frequency generation (HD-DR chiral SFG) spectra were observed for the first time on monolayers. Langmuir monolayers of R- and S-binaphthyl amphiphiles on water exhibited complex chiral vibrational sum frequency… read more here.
Keywords: raman tensor; frequency generation; raman; sum frequency ... See more keywords
Experimental and Theoretical Study of Azimuth Angle and Polarization Dependences of Sum-Frequency-Generation Vibrational Spectral Features of Uniaxially Aligned Cellulose Crystals
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b03037
Abstract: Comprehensive interpretation of vibrational sum-frequency-generation (SFG) spectroscopic features of SFG-active nanodomains interspersed in amorphous bulk requires the knowledge of nonlinear susceptibility, χijk(2), of the SFG-active phase as a function of its spatial arrangement in the… read more here.
Keywords: azimuth angle; frequency generation; angle polarization; sum frequency ... See more keywords
Using Heterodyne-Detected Electronic Sum Frequency Generation to Probe the Electronic Structure of Buried Interfaces
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b05514
Abstract: Organic semiconductors (OSCs) are attractive optoelectronic materials due to their high extinction coefficients, processing advantages, and ability to display unique phenomena such as singlet exciton fission. However, employing OSCs as active electronic components remains challenging… read more here.
Keywords: frequency generation; sum frequency; electronic sum;
Relating Interfacial Order to Sum Frequency Generation with Ab Initio Simulations of the Aqueous Al2O3(0001) and (112̅0) Interfaces
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.8b02809
Abstract: We use density functional theory molecular dynamics simulations to investigate the structure, dynamics, and vibrational sum frequency generation (vSFG) spectra at the Al2O3(0001)–H2O and Al2O3(1120)–H2O interfaces. We find that the differences in the vSFG spectra… read more here.
Keywords: al2o3 0001; frequency generation; surface; sum frequency ... See more keywords
Sum-Frequency Generation in High-Q GaP Metasurfaces Driven by Leaky-Wave Guided Modes.
Sign Up to like & getrecommendations! Published in 2022 at "Nano letters"
DOI: 10.1021/acs.nanolett.2c01349
Abstract: Resonant metasurfaces provide a unique platform for enhancing multiwave nonlinear interactions. However, the difficulties over mode matching and material transparency place significant challenges in the enhancement of these multiwave processes. Here we demonstrate efficient nonlinear… read more here.
Keywords: gap metasurfaces; sfg; generation; frequency generation ... See more keywords
Self-Phase-Stabilized Heterodyne Vibrational Sum Frequency Generation Microscopy
Sign Up to like & getrecommendations! Published in 2017 at "ACS Photonics"
DOI: 10.1021/acsphotonics.7b00411
Abstract: Vibrational sum frequency generation (VSFG) spectroscopy has been a powerful technique to probe molecular structures in non-centrosymmetric media. Recently developed heterodyne (HD) detection can further reveal spectral phase and molecular orientations. Adding imaging capability to… read more here.
Keywords: frequency generation; phase; microscopy; vsfg microscope ... See more keywords