Our group supplied the samples and measured the samples with far-field Raman spectroscopy. The anti-Stokes Raman studies on single carbyne chains was mainly performed in ETH achieved by tip-enhanced Raman scattering in ETH.

    We have 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.

    Paper information: Anti-Stokes Raman Scattering of Single Carbyne Chains. ACS Nano,15, 7, 12249–12255 (2021) Cla Duri Tschannen*, Martin Frimmer, Georgy Gordeev, Thiago L. Vasconcelos, Lei Shi, Thomas Pichler, Stephanie Reich, Sebastian Heeg, Lukas Novotny.