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Nonlinear optical methods, such as coherent anti-Stokes Raman scattering (CARS) and stimulated Raman scattering (SRS), are able to perform label free imaging, with chemical bonds specificity. Here, we demonstrate that the use of circularly…

Different types of spectroscopies, such as X-ray absorption near edge structure (XANES) and Raman spectroscopy, play a very important role in analyzing the characteristics of different materials. In scientific literature, XANES/Raman data…

Computer Vision and Pattern Recognition · Computer Science 2021-07-08 Weixin Jiang , Eric Schwenker , Trevor Spreadbury , Kai Li , Maria K. Y. Chan , Oliver Cossairt

We investigate the interlayer phonon modes in $N$-layer rhenium diselenide (ReSe$_2$) and rhenium disulfide (ReS$_2$) by means of ultralow-frequency micro-Raman spectroscopy. These transition metal dichalcogenides exhibit a stable distorted…

Mesoscale and Nanoscale Physics · Physics 2016-02-10 Etienne Lorchat , Guillaume Froehlicher , Stéphane Berciaud

Angle-resolved photoemission spectroscopy (ARPES) is a technique used to map the occupied electronic structure of solids. Recent progress in X-ray focusing optics has led to the development of ARPES into a microscopic tool, permitting the…

Raman scattering is the inelastic process where photons bounce off molecules, losing energy and becoming red-shifted. This weak effect is unique to each molecular species, making it an essential tool in e.g. spectroscopy and label-free…

Context: Polarimetry is a very powerful tool to uncover various properties of astronomical objects that remain otherwise hidden in standard imaging or spectroscopic observations. However, the reliable measurement of the low polarization…

Instrumentation and Methods for Astrophysics · Physics 2020-02-12 S. González-Gaitán , A. M. Mourão , F. Patat , J. P. Anderson , A. Cikota , K. Wiersema , A. B. Higgins , K. Silva

Strain engineering in semiconductor transistor devices has become vital in the semiconductor industry due to the ever increasing need for performance enhancement at the nanoscale. Raman spectroscopy is a non-invasive measurement technique…

Optics · Physics 2021-06-17 V. Prabhakara , T. Nuytten , H. Bender , W. Vandervorst , S. Bals , J. Verbeeck

This treatise reviews latest results obtained from angle-resolved photoemission spectroscopy (ARPES) on cuprate superconductors, with a special focus on the electron-phonon interaction. What has emerged is rich information about the…

Strongly Correlated Electrons · Physics 2009-09-29 X. J. Zhou , T. Cuk , T. Devereaux , N. Nagaosa , Z. -X. Shen

We employ the time-dependent R-Matrix (TDRM) method to calculate anisotropy parameters for positive and negative sidebands of selected harmonics generated by two-color two-photon above threshold ionization of argon. We consider odd…

Atomic Physics · Physics 2013-10-24 Steven Hutchinson , Michael A. Lysaght , Hugo W. van der Hart

Structural anisotropy in layered two-dimensional materials can lead to highly anisotropic optical absorption which, in turn, can profoundly a^ect their phonon modes. These e^ects include lattice orientation-dependent and excitation…

Transition metal dichalcogenides (TMDs) are layered materials which show excellent potential for nanoelectronic and optoelectronic applications. However, as many of the exciting features of these materials are controlled by the anharmonic…

Materials Science · Physics 2021-08-13 Suvodeep Paul , Saheb Karak , Annie Mathew , Ankita Ram , Surajit Saha

Angle-resolved (AR) RABBIT measurements offer a high information content measurement scheme, due to the presence of multiple, interfering, ionization channels combined with a phase-sensitive observable in the form of angle and time-resolved…

Quantum Physics · Physics 2017-09-05 Paul Hockett

Angle-Resolved Photoemission Spectroscopy (ARPES) is a premier technique for understanding the electronic excitations in conductive, crystalline matter, in which the induced photocurrent is collected and dispersed in energy and angle of…

Strongly Correlated Electrons · Physics 2023-07-11 Sae Hee Ryu , Garett Reichenbach , Chris M. Jozwiak , Aaron Bostwick , Peter Richter , Thomas Seyller , Eli Rotenberg

Raman spectroscopy is a useful experimental tool to investigate local deformation and structural changes in SiO$_2$-based glasses. Using a semi-classical modelling of Raman spectra in large samples of silica glasses, we show in this paper…

Disordered Systems and Neural Networks · Physics 2015-02-04 Nikita S. Shcheblanov , Boris Mantisi , Paolo Umari , Anne Tanguy

We present angle-resolved photoemission spectroscopy (ARPES) data on undoped La2CuO4, indicating polaronic coupling between bosons and charge carriers. Using a shell model, we calculate the electron-phonon coupling and find that it is…

Strongly Correlated Electrons · Physics 2007-05-23 O. Rösch , O. Gunnarsson , X. J. Zhou , T. Yoshida , T. Sasagawa , A. Fujimori , Z. Hussain , Z. -X. Shen , S. Uchida

Transition metal dichalcogenide, especially MoS2 has attracted lot of attention recently owing to its tunable visible range band gap and anisotropic electronic and transport properties. Here, we report a comprehensive inelastic light…

Materials Science · Physics 2020-08-26 Deepu Kumar , Birender Singh , Rahul Kumar , Mahesh Kumar , Pradeep Kumar

Parametric arrays (PA) offer exceptional directivity and compactness compared to conventional loudspeakers, facilitating various acoustic applications. However, accurate measurement of audio signals generated by PA remains challenging due…

Sound · Computer Science 2025-09-29 Woongji Kim , Beomseok Oh , Junsuk Rho , Wonkyu Moon

The optical response of bulk germanium sulfide (GeS) is investigated systematically using different polarization-resolved experimental techniques, such as photoluminescence (PL), reflectance contrast (RC), and Raman scattering (RS). It is…

Excitation of four coherent phonon modes of different symmetries has been realized in copper metaborate CuB$_2$O$_4$ via impulsive stimulated Raman scattering (ISRS). Phonons were detected by monitoring changes in the linear optical…

We report on the angle-resolved polarized Raman spectroscopy and estimation of the Raman tensor elements using both classical and quantum treatments to analyse the polarized Raman spectra of single crystal Bismuth Telluride. The observed…