Shin, Seong-Il Lim, Yong-Sik Kim, Myung Jong 2024-01-20T06:04:31Z 2024-01-20T06:04:31Z 2021-09-05 2015-09 0374-4884 https://pubs.kist.re.kr/handle/201004/125051 We performed transient absorption measurements with sub-10-fs pulses to observe coherent phonon (CP) oscillations of species in a micelle-suspended arc-discharge single-walled carbon nanotube (SWNT) ensemble. We applied a spectral-resolved measurement scheme to investigate the photon-wavelength dependence of CP oscillations of the radial breathing mode (RBM) specific to each species, covering a broad photon wavelength range from 700 to 1000 nm (1.771 - 1.240 eV). With a linear prediction singular value decomposition (LPSVD) method as a robust alternative for resolving closely-overlapped vibration modes, we divided multiple RBM peaks into two components, the M (11)-excited metallic species and the S (22)-excited semiconducting species, respectively. We resolved the RBM peaks into 22 metallic and 29 semiconducting species. Resolved metallic tubes showed a wide distribution in diameters from 1.3 to 2.3 nm, forming a chirality distribution from (2n + m) = 33 family to 51 family. English KOREAN PHYSICAL SOC GENERATION Chirality assignment for metallic species via coherent phonon oscillations in arc-discharge single-walled carbon nanotubes Article 10.3938/jkps.67.921 1 JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.67, no.5, pp.921 - 929 JOURNAL OF THE KOREAN PHYSICAL SOCIETY 67 5 921 929 scie scopus kci ART002029089 000361624200026 2-s2.0-84942311135 Physics, Multidisciplinary Physics Article GENERATION Coherent phonon oscillations Arc-discharge single-walled carbon nanotubes Chirality assignment Spectral-resolved spectroscopy