Phys. Rev. Lett. 90, 057403 (2003) [4 pages]Theoretical Study of the Optical Manipulation of Semiconductor Nanoparticles under an Excitonic Resonance Condition
See accompanying Physics Focus We theoretically study the mechanical interaction between radiation and a semiconductor nanoparticle, based on a microscopic model of confined excitons. The exerted force is calculated by using the Maxwell stress tensor expressed in terms of the microscopic response field. The numerical demonstrations clarify the following: (1) The enhancement of the force by using electronic resonance is remarkable for a particle with a radius of less than 100 nm for semiconductor materials. (2) The spectral peak position of the exerted force is considerably sensitive to nanoscale-size changes which would be useful for highly accurate size-selective manipulation. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.057403
DOI:
10.1103/PhysRevLett.90.057403
PACS:
78.67.Bf, 71.35.–y, 78.90.+t
See AlsoReply: Matthew Pelton, Comment on “Theoretical Study of the Optical Manipulation of Semiconductor Nanoparticles under an Excitonic Resonance Condition”, Phys. Rev. Lett. 92, 089701 (2004). Reply: Takuya Iida and Hajime Ishihara, Iida and Ishihara Reply:, Phys. Rev. Lett. 92, 089702 (2004). |
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