Steiner Mathias, Qian Huihong, Hartschuh Achim, Meixner Alfred Johann
Institut für Physikalische und Theoretische Chemie, Universität Tübingen, 72076 Tübingen, Germany.
Nano Lett. 2007 Aug;7(8):2239-42. doi: 10.1021/nl070693i. Epub 2007 Jul 13.
We studied spatially isolated single-walled carbon nanotubes (SWNTs) immobilized in a quasi-planar optical lambda/2-microresonator using confocal microscopy and spectroscopy. The modified photonic mode density within the resonator is used to selectively enhance or inhibit different Raman transitions of SWNTs. Experimental spectra are presented that exhibit single Raman bands only. Calculations of the relative change in the Raman scattering cross sections underline the potential of our microresonator for the optical control of nonequilibrium phonon populations in SWNT.
我们使用共聚焦显微镜和光谱学研究了固定在准平面光学λ/2微谐振器中的空间隔离单壁碳纳米管（SWNTs）。谐振器内修改后的光子模式密度用于选择性增强或抑制SWNTs的不同拉曼跃迁。给出的实验光谱仅显示单一拉曼带。拉曼散射截面相对变化的计算突出了我们的微谐振器对SWNT中非平衡声子群体进行光学控制的潜力。
