Results 41 to 50 of about 167,695 (329)

Gate-tunable circular phonon dichroism effect in bilayer graphene

iScience
Summary: Circular phonon dichroism effect has been proposed in two-dimensional materials; however, the lack of tunability hinders the exploration of the effect.
Wen-Yu Shan
doaj   +1 more source

Evaluation of Molecular Polarizability and of Intensity Carrying Modes Contributions in Circular Dichroism Spectroscopies

Applied Sciences, 2019
We re-examine the theory of electronic and vibrational circular dichroism spectroscopy in terms of the formalism of frequency-dependent molecular polarizabilities.
Chiara Zanchi, Giovanna Longhi, Sergio Abbate, Giovanni Pellegrini, Paolo Biagioni, Matteo Tommasini   +5 more
doaj   +1 more source

Phenomenon of the time-reversal-violating photon polarization plane rotation by a gas placed to an electric field [PDF]

, 1998
T-odd P-odd phenomenon of the photon polarization plane rotation (circular dichroism) is considered for an atomic (molecules) gas placed to an electric field.
Baryshevsky, Baryshevsky, Baryshevsky, Bunch, Cameron, Christenson, Edwards, Forte, Lamoreaux, Meekhof, Vladimir G. Baryshevsky   +10 more
core   +2 more sources

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

The Role of Fiber Agglomeration in Formation of Perylene-Based Fiber Networks

Cell Reports Physical Science, 2020
Summary: The agglomeration of self-assembled fibers of π-conjugated molecules is crucial to the formation of low-molecular-weight supramolecular gels. However, identification of the in situ spectroscopic signatures of fiber agglomeration has remained a ...
Ashish Sharma, Jonathan P. Wojciechowski, Yawei Liu, Théophile Pelras, Claire M. Wallace, Markus Müllner, Asaph Widmer-Cooper, Pall Thordarson, Girish Lakhwani   +8 more
doaj   +1 more source

Toroidal circular dichroism

, 2016
We demonstrate that the induced toroidal dipole, represented by currents flowing on the surface of a torus, makes a distinct and indispensable contribution to circular dichroism.
Chen, W.T., Fedotov, V.A., Kuprov, I., Papasimakis, N., Raybould, T.A., Tsai, D.P., Youngs, I.J., Zheludev, N.I.   +7 more
core   +1 more source

Experimental demonstration of the microscopic origin of circular dichroism in two-dimensional metamaterials [PDF]

, 2016
Optical activity and circular dichroism are fascinating physical phenomena originating from the interaction of light with chiral molecules or other nano objects lacking mirror symmetries in three-dimensional (3D) space.
A Dazzi, A Kuzyk, A Rose, AB Khanikaev, AD Rakić, AE Çetin, AM Katzenmeyer, AV Kildishev, B Hopkins, B Lahiri, B Wang, C Pfeiffer, C Wu, C Wu, CL Holloway, DE Sikes, F Hao, F Lu, F Lu, J Kästel, JC Bose, JK Gansel, M Schaferling, M Schnell, M Schnell, M Schnell, M Schnell, N Arju, N Liu, N Ocelic, N Yu, NI Zheludev, P Alonso-Gonzalez, P Alonso-González, R Adato, S Fan, T Neuman, VA Fedotov, VA Fedotov, WA Bonner, Y Tang, Y Zhao, Y Zhao   +42 more
core   +2 more sources

Wavelength‐Dependent Differential Amplification of Raman Scattering by Chiral Gold Nanorods for Multiplexed Encoding

Advanced Functional Materials, EarlyView.
The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro, Carlos Renero‐Lecuna, Manuel Obelleiro‐Liz, Víctor F. Martín, Diptesh Dey, José M. Taboada, George C. Schatz, Isabel Pastoriza‐Santos, Jorge Pérez‐Juste, Luis M. Liz‐Marzán   +9 more
wiley   +1 more source

Snapshot circular dichroism measurements

Optics Express, 2019
Two coherent waves carrying orthogonal polarizations do not interfere when they superpose, but an interference pattern is generated when the two waves share a common polarization. This well-known principle of coherence and polarization is exploited for the experimental demonstration of a novel method for performing circular dichroism measurements ...
Oriol Arteaga, Zoubir El-Hachemi, Razvigor Ossikovski   +2 more
openaire   +4 more sources

Oscillatory surface dichroism of an insulating topological insulator Bi2Te2Se

, 2013
Using circular dichroism-angle resolved photoemission spectroscopy (CD-ARPES), we report a study of the effect of angular momentum transfer between polarized photons and topological surface states on the surface of highly bulk insulating topological ...
Alidoust, N., Bansil, A., Basak, S., Belopolski, I., Bian, G., Bissen, M., Cava, R. J., Durakiewicz, T., Hasan, M. Z., Ji, H., Jia, S., Lin, H., Liu, Chang, Mo, S. -K., Neupane, M., Ong, N. P., Severson, M., Xiong, J., Xu, S. -Y.   +18 more
core   +1 more source