Abstract

In this comment, we argue that the conlusion made by Harrisson and Ben-Yakar [Opt. Express 18, 22556 (2010)], which states that nanoablation with plasmonic nanorods depends on the enhancement of the Poynting vector rather than the one of the square of the electric field, is incorrect and not necessarily needed to explain their experimental results.

© 2011 Optical Society of America

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References

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  1. R. K. Harrisson, and A. Ben-Yakar, "Role of near-field enhancement in plasmonic laser nanoablation using gold nanorods on a silicon substrate," Opt. Express 18(21), 22556-22571 (2010).
    [CrossRef]
  2. J. Chen, and J. Beraun, "Numerical study of ultrashort laser pulse interaction with metal films," Numer. Heat Transfer Part A 40, 1-20 (2001).
    [CrossRef]
  3. J. D. Jackson, "Poynting’s Theorem for Harmonic Fields," in Classical Electrodynamics, 3rd edition, (John Wiley & Sons Inc., 1999), pp 264-265.
  4. E. Boulais, A. Robitaille, and M. Meunier are preparing a manuscript to be called "Nanorods enhanced femtosecond laser nanoablation," (2011).

2010 (1)

2001 (1)

J. Chen, and J. Beraun, "Numerical study of ultrashort laser pulse interaction with metal films," Numer. Heat Transfer Part A 40, 1-20 (2001).
[CrossRef]

Ben-Yakar, A.

Beraun, J.

J. Chen, and J. Beraun, "Numerical study of ultrashort laser pulse interaction with metal films," Numer. Heat Transfer Part A 40, 1-20 (2001).
[CrossRef]

Chen, J.

J. Chen, and J. Beraun, "Numerical study of ultrashort laser pulse interaction with metal films," Numer. Heat Transfer Part A 40, 1-20 (2001).
[CrossRef]

Harrisson, R. K.

Numer. Heat Transfer Part A (1)

J. Chen, and J. Beraun, "Numerical study of ultrashort laser pulse interaction with metal films," Numer. Heat Transfer Part A 40, 1-20 (2001).
[CrossRef]

Opt. Express (1)

Other (2)

J. D. Jackson, "Poynting’s Theorem for Harmonic Fields," in Classical Electrodynamics, 3rd edition, (John Wiley & Sons Inc., 1999), pp 264-265.

E. Boulais, A. Robitaille, and M. Meunier are preparing a manuscript to be called "Nanorods enhanced femtosecond laser nanoablation," (2011).

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Figures (1)

Fig. 1
Fig. 1

(a) AFM imaging of a double-crater shaped hole created by a single pulse irradiation of a 120 fs, 190mJ/cm2, 800nm laser on a 25nm × 84nm gold nanorod deposited on a silicon surface (sketched in the figure). Laser polarization is linear along the nanorod’s great axis. (b) Cross-section of the double-hole’s depth profile along the line shown in (a).

Equations (2)

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W = 1 2 Re [ V J * E d 3 x ]
Re [ S ] = 1 2 Re [ J * E ]

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