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A polarizing situation： Taking an in-plane perspective for next-generation near-field studies

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Frontiers of physics 2016年第2期11卷 1-17页

作者： P. James Schuck Wel Bao Nicholas J. Borys Molecular Foundry Lawrence Berkeley National Laboratory Berkeley CA 94720 USA Department of Materials Science and Engineering University of California Berkeley CA 94720-1760 USA

By enabling the probing of light-matter interactions at the functionally relevant length scales of most materials, near-field optical imaging and spectroscopy accesses information that is unobtainable with other methods. The advent of apertureless techniques, which exploit the ultralocalized and enhanced near-fields created by sharp metallic tips or plasmonic nanoparticles, has resulted in rapid adoption of near-field approaches for studying novel materials and phenomena, with spatial resolution approaching sub-molecular levels. However, these approaches are generally limited by the dominant out-of-plane polarization response of apertureless tips, restricting the exploration and discovery of many material properties. This has led to recent design and fabrication breakthroughs in near-field tips engineered specifically for enhancing in-plane interactions with near-field light components. This mini-review provides a perspective on recent progress and emerging directions aimed at utilizing and controlling in-plane optical polarization, highlighting key application spaces where in-plane near-field tip responses have enabled recent advancements in the understanding and development of new nanostructured materials and devices.

关键词： near-field optical microscopy nano-optics TERS plasmonics optical antenna 2D materials

Light scattering and surface plasmons on small spherical particles

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Light(Science & Applications) 2014年第1期3卷 182-195页

作者： Xiaofeng Fan Weitao Zheng David J Singh College of Materials Science and Engineering Jilin UniversityChangchun 130012China Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTennessee 37831-6056USA

Light scattering by small particles has a long and interesting history in ***,it continues to surprise with new insights and *** includes new discoveries,such as novel plasmonic effects,as well as exciting theoretical and experimental developments such as optical trapping,anomalous light scattering,optical tweezers,nanospasers,and novel aspects and realizations of Fano *** have led to important new applications,including several ones in the biomedical area and in sensing techniques at the single-molecule *** are additionally many potential future applications in optical devices and solar energy *** we review the fundamental aspects of light scattering by small spherical particles,emphasizing the phenomenological treatments and new developments in this field.

关键词： light scattering Mie theory nano-optics small particles surface plasmons

Laser wavelength effects on(Ti,Al,Si)N in near-field laser nanostructuring by micron optical fiber enhanced irradiation

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Science China(Technological Sciences) 2013年第12期56卷 3012-3016页

作者： LIU DaMeng LIU JiaChen WANG Hui SU Kang SHAO TianMin State Key Laboratory of Tribology Tsinghua University

The effects of laser wavelengths(1064,532,355 and 266 nm)on nano-processing of fabricating a groove structure on(Ti,Al,Si)N alloy film using the micro-fiber near-field enhanced irradiation are *** is observed that variations of laser wavelength can effectively change the widths of the groove structures,which are featured as one-dimension bowl-like *** minimum of the groove width can be achieved at 293 nm with a 532 nm laser *** order to fabricate the groove in nanoscale,enough energy is delivered onto(Ti,Al,Si)N surface by a single laser *** results are also discussed to understand the experimental results.

关键词： micro-fiber field enhancement nano-optics nanostructuring

Review: Physical Coloration-nanoscopic Science and Macroscopic Impact

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Journal of Harbin Institute of Technology(New Series) 2021年第1期28卷 1-11页

作者： Jimmy Xu School of Engineering and Department of Physics Brown UniversityProvidenceRhode Island 02912USA

Physical coloration stimulated the development of a new era of science and technology some hundred years *** is now again presenting us new opportunities and challenges on multiple *** article focuses on a selectively few of them that are more directional in nature:scalable nanomanufacturing of physical coloration,physical amplification of colorimetric sensing,and provision of biophilic lighting with real-time full-spectrum physical *** coloration is a rather large multi-dimensional field that is open and awaiting for creative minds and *** impact has been broad and profound to the well-being of *** article attempts to complement the reviews of broad scopes available in literature by one with a narrower focus on the more recent advances on the three fronts.

关键词： physical coloration plasmonics biophilic lighting spectral shaping nano-optics