Near-field electrical detection of optical plasmons and single-plasmon sources Export

@article{citeulike:4967219, abstract = {Photonic circuits can be much faster than their electronic counterparts, but they are difficult to miniaturize below the optical wavelength scale. Nanoscale photonic circuits based on surface plasmon polaritons (SPPs) are a promising solution to this problem because they can localize light below the diffraction limit1, 2, 3, 4, 5, 6, 7, 8. However, there is a general trade-off between the localization of an SPP and the efficiency with which it can be detected with conventional far-field optics. Here, we describe a new all-electrical SPP detection technique based on the near-field coupling between guided plasmons and a nanowire field-effect transistor. We use the technique to electrically detect the plasmon emission from an individual colloidal quantum dot coupled to an SPP waveguide. Our detectors are both nanoscale and highly efficient (0.1 electrons per plasmon), and a plasmonic gating effect can be used to amplify the signal even higher (up to 50 electrons per plasmon). These results may enable new on-chip optical sensing applications and are a key step towards 'dark' optoplasmonic nanocircuits in which SPPs can be generated, manipulated and detected without involving far-field radiation.}, author = {Falk, Abram L. and Koppens, Frank H. and Yu, Chun L. and Kang, Kibum and Leon, De and Akimov, Alexey V. and Jo, Moon H. and Lukin, Mikhail D. and Park, Hongkun}, citeulike-article-id = {4967219}, citeulike-linkout-0 = {http://dx.doi.org/10.1038/nphys1284}, citeulike-linkout-1 = {http://dx.doi.org/10.1038/nphys1284}, day = {24}, doi = {10.1038/nphys1284}, issn = {1745-2473}, journal = {Nature Physics}, keywords = {metal, plasmon}, month = {July}, number = {7}, pages = {475--479}, posted-at = {2009-06-26 05:43:03}, priority = {2}, publisher = {Nature Publishing Group}, title = {Near-field electrical detection of optical plasmons and single-plasmon sources}, url = {http://dx.doi.org/10.1038/nphys1284}, volume = {5}, year = {2009} }

TY - JOUR ID - citeulike:4967219 L3 - citeulike-article-id:4967219 N2 - Photonic circuits can be much faster than their electronic counterparts, but they are difficult to miniaturize below the optical wavelength scale. Nanoscale photonic circuits based on surface plasmon polaritons (SPPs) are a promising solution to this problem because they can localize light below the diffraction limit1, 2, 3, 4, 5, 6, 7, 8. However, there is a general trade-off between the localization of an SPP and the efficiency with which it can be detected with conventional far-field optics. Here, we describe a new all-electrical SPP detection technique based on the near-field coupling between guided plasmons and a nanowire field-effect transistor. We use the technique to electrically detect the plasmon emission from an individual colloidal quantum dot coupled to an SPP waveguide. Our detectors are both nanoscale and highly efficient (0.1 electrons per plasmon), and a plasmonic gating effect can be used to amplify the signal even higher (up to 50 electrons per plasmon). These results may enable new on-chip optical sensing applications and are a key step towards 'dark' optoplasmonic nanocircuits in which SPPs can be generated, manipulated and detected without involving far-field radiation. IS - 7 JF - Nature Physics SN - 1745-2473 EP - 479 TI - Near-field electrical detection of optical plasmons and single-plasmon sources PB - Nature Publishing Group VL - 5 SP - 475 KW - metal KW - plasmon AU - Falk, Abram AU - Koppens, Frank AU - Yu, Chun AU - Kang, Kibum AU - Leon, De AU - Akimov, Alexey AU - Jo, Moon AU - Lukin, Mikhail AU - Park, Hongkun PY - 2009/July/24/ UR - http://dx.doi.org/10.1038/nphys1284 ER -