• Advanced Photonics Nexus
  • Vol. 2, Issue 2, 026002 (2023)
Jeremy Belhassen1、2, Simcha Glass1、3, Eti Teblum4, George A. Stanciu5, Denis E. Tranca5, Zeev Zalevsky2、4、*, Stefan G. Stanciu5、*, and Avi Karsenty1、3、*
Author Affiliations
  • 1Jerusalem College of Technology, Lev Academic Center, Faculty of Engineering, Department of Applied Physics/Electro-Optics Engineering, Advanced Laboratory of Electro-Optics, Jerusalem, Israel
  • 2Bar-Ilan University, Faculty of Engineering, Ramat Gan, Israel
  • 3Nanotechnology Center for Research and Education, Lev Academic Center, Jerusalem, Israel
  • 4Bar-Ilan University, The Nanotechnology Center, Ramat Gan, Israel
  • 5Politehnica University of Bucharest, Center for Microscopy-Microanalysis and Information Processing, Bucharest, Romania
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    DOI: 10.1117/1.APN.2.2.026002 Cite this Article Set citation alerts
    Jeremy Belhassen, Simcha Glass, Eti Teblum, George A. Stanciu, Denis E. Tranca, Zeev Zalevsky, Stefan G. Stanciu, Avi Karsenty. Toward augmenting tip-enhanced nanoscopy with optically resolved scanning probe tips[J]. Advanced Photonics Nexus, 2023, 2(2): 026002 Copy Citation Text show less

    Abstract

    A thorough understanding of biological species and emerging nanomaterials requires, among other efforts, their in-depth characterization through optical techniques capable of nanoresolution. Nanoscopy techniques based on tip-enhanced optical effects have gained tremendous interest over the past years, given their potential to obtain optical information with resolutions limited only by the size of a sharp probe interacting with focused light, irrespective of the illumination wavelength. Although their popularity and number of applications is rising, tip-enhanced nanoscopy (TEN) techniques still largely rely on probes that are not specifically developed for such applications, but for atomic force microscopy. This limits their potential in many regards, e.g., in terms of signal-to-noise ratio, attainable image quality, or extent of applications. We take the first steps toward next-generation TEN by demonstrating the fabrication and modeling of specialized TEN probes with known optical properties. The proposed framework is highly flexible and can be easily adjusted to be used with diverse TEN techniques, building on various concepts and phenomena, significantly augmenting their function. Probes with known optical properties could potentially enable faster and more accurate imaging via different routes, such as direct signal enhancement or facile and ultrafast optical signal modulation. We consider that the reported development can pave the way for a vast number of novel TEN imaging protocols and applications, given the many advantages that it offers.
    σsca=k46π|α|2=8π3k4a6|ε(ω)εdε(ω)+2εd|2.

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    σabs=kIm(α)=4πka3Im[ε(ω)εdε(ω)+2εd].

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    σext=σsca+σabs,

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    Re[ε(ω)]=2εd.

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    σsca=2πk2n=1(2n+1)(|an|2+|bn|2),

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    σabs=2πk2n=1(2n+1)Re(an+bn),

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    σabs=σextσsca.

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    Jeremy Belhassen, Simcha Glass, Eti Teblum, George A. Stanciu, Denis E. Tranca, Zeev Zalevsky, Stefan G. Stanciu, Avi Karsenty. Toward augmenting tip-enhanced nanoscopy with optically resolved scanning probe tips[J]. Advanced Photonics Nexus, 2023, 2(2): 026002
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