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Title: Resonant-Plasmon-Assisted Subwavelength Ablation by a Femtosecond Oscillator

Here, we experimentally demonstrate the use of subwavelength optical nanoantennas to assist a direct nanoscale ablation using the ultralow fluence of a Ti:sapphire oscillator through the excitation of surface plasmon waves. The mechanism is attributed to nonthermal transient unbonding and electrostatic ablation, which is triggered by the surface plasmon-enhanced field electron emission and acceleration in vacuum. We show that the electron-driven ablation appears for both nanoscale metallic as well as dielectric materials. While the observed surface plasmon-enhanced local ablation may limit the applications of nanostructured surfaces in extreme nonlinear nanophotonics, it, nevertheless, also provides a method for nanomachining, manipulation, and modification of nanoscale materials. Lastly, collateral thermal damage to the antenna structure can be suitably avoided, and nonlinear conversion processes can be stabilized by a dielectric overcoating of the antenna.
 [1] ;  [2] ;  [3] ;  [1] ;  [4] ;  [4] ;  [3] ;  [3] ;  [3] ;  [5] ;  [6] ;  [7] ;  [8] ;  [9] ;  [1] ;  [4] ;  [10] ;  [3] ;  [1]
  1. Leibniz Univ. Hannover, Hannover (Germany). Inst. fur Quantenoptik; Centre for Quantum Engineering and Space-Time Research (QUEST), Hannover (Germany)
  2. Leibniz Univ. Hannover, Hannover (Germany). Inst. fur Quantenoptik; SLAC National Accelerator Lab., Menlo Park, CA (United States). Photon Ultrafast Laser Science and Engineering Inst. (PULSE)
  3. Univ. Paris-Saclay, Gif-sur-Yvette (France)
  4. Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of). Dept. of Mechanical Engineering
  5. Leibniz Univ. Hannover, Hannover (Germany). Inst. fur Werkstoffkunde
  6. Laser Zentrum Hannover e.V., Hannover (Germany); Hochschule Bremen City Univ. of Applied Sciences, Bremen (Germany)
  7. Univ. of Twente, Enschede (Netherlands). Laser Physics and Nonlinear Optics, MESA+Inst. for Nanotechnology
  8. Leibniz Univ. Hannover, Hannover (Germany). Inst. fur Quantenoptik; Laser-Laboratorium Gottingen e.V., Gottingen (Germany); Max-Born-Inst., Berlin (Germany)
  9. eibniz Univ. Hannover, Hannover (Germany). Inst. fur Quantenoptik; Max-Born-Inst., Berlin (Germany)
  10. Max-Born-Inst., Berlin (Germany)
Publication Date:
Grant/Contract Number:
AC02-76SF00515; KO 3798/4-1
Accepted Manuscript
Journal Name:
Physical Review Applied
Additional Journal Information:
Journal Volume: 9; Journal Issue: 2; Journal ID: ISSN 2331-7019
American Physical Society (APS)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE; German Research Foundation (DFG); European Union (EU)
Country of Publication:
United States
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 77 NANOSCIENCE AND NANOTECHNOLOGY; Atomic, Molecular & Optical; Plasma Physics; Nanoantennas
OSTI Identifier: