Anti-Stokes Raman Scattering of Single Carbyne Chains
Cla Duri Tschannen, Martin Frimmer, Georgy Gordeev, Thiago L. Vasconcelos, Lei Shi, Thomas Pichler, Stephanie Reich, Sebastian Heeg, Lukáš Novotný
Abstract
We investigate the anti-Stokes Raman scattering of single carbyne chains confined inside double-walled carbon nanotubes. Individual chains are identified using tip-enhanced Raman scattering (TERS) and heated by resonant excitation with varying laser powers. We study the temperature dependence of carbyne's Raman spectrum and quantify the laser-induced heating based on the anti-Stokes/Stokes ratio. Due to its molecular size and its large Raman cross section, carbyne holds great promise for local temperature monitoring, with potential applications ranging from nanoelectronics to biology.
Topics & Concepts
CarbyneRaman scatteringRaman spectroscopyMaterials scienceScatteringLaserCoherent anti-Stokes Raman spectroscopyMolecular physicsX-ray Raman scatteringNanotechnologyChemical physicsOpticsChemistryPhysicsOrganic chemistryCatalysisCarbeneCarbon Nanotubes in CompositesThermal properties of materialsGraphene research and applications