Measuring subwavelength spatial coherence with plasmonic interferometry

被引:0
|
作者
Drew Morrill
Dongfang Li
Domenico Pacifici
机构
[1] School of Engineering,
[2] Brown University,undefined
来源
Nature Photonics | 2016年 / 10卷
关键词
D O I
暂无
中图分类号
学科分类号
摘要
Optical interferometry has enabled quantification of the spatial and temporal correlations of electromagnetic fields, which laid the foundations for the theory of optical coherence. Despite significant advances in fundamental theories and applications, the measurement of nanoscale coherence lengths for highly incoherent optical fields has remained elusive. Here, we employ plasmonic interferometry (that is, optical interferometry with surface plasmons) to characterize the spatial degree of coherence of light beams down to subwavelength scales, with measured coherence lengths as low as ∼330 nm for an incident wavelength of 500 nm. Furthermore, we demonstrate a compact coherence meter that integrates this method with an image sensor. Precise determination of spatial coherence can advance high-resolution imaging and tomographic schemes, and provide an experimental platform for the development and testing of optical coherence theories at the nanoscale.
引用
收藏
页码:681 / 687
页数:6
相关论文
共 50 条
  • [21] Plasmonic interferometry
    Oliver Graydon
    Nature Photonics, 2012, 6 (3) : 139 - 139
  • [22] Measuring subwavelength phase differences with a plasmonic circuit - an example of nanoscale optical signal processing
    Eftekhari, Fatima
    Gomez, Daniel E.
    Davis, Timothy J.
    OPTICS LETTERS, 2014, 39 (10) : 2994 - 2997
  • [23] Comparing Low Coherence Interferometry with conventional methods of measuring paper roughness
    Prykari, Tuukka
    Alarousu, Erkki
    Myllyla, Risto
    SARATOV FALL MEETING 2006: COHERENT OPTICS OF ORDERED AND RANDOM MEDIA VII, 2007, 6536
  • [24] Surface measuring coherence scanning interferometry beyond the specular reflection limit
    Thomas, Matthew
    Su, Rong
    de Groot, Peter
    Coupland, Jeremy
    Leach, Richard
    OPTICS EXPRESS, 2021, 29 (22) : 36121 - 36131
  • [25] FAST COHERENCE SCANNING INTERFEROMETRY FOR MEASURING SMOOTH, ROUGH AND SPHERICAL SURFACES
    WINDECKER, R
    HAIBLE, P
    TIZIANI, HJ
    JOURNAL OF MODERN OPTICS, 1995, 42 (10) : 2059 - 2069
  • [26] Subwavelength binary plasmonic solitons
    Kou, Yao
    Foerstner, Jens
    OPTICS LETTERS, 2015, 40 (06) : 851 - 854
  • [27] Subwavelength nonlinear plasmonic nanowire
    Panoiu, NC
    Osgood, RM
    NANO LETTERS, 2004, 4 (12) : 2427 - 2430
  • [28] Generation of pronounced Fano resonances and tuning of subwavelength spatial light distribution in plasmonic pentamers
    Rahmani, M.
    Lukiyanchuk, B.
    Ng, B.
    Tavakkoli K G, A.
    Liew, Y. F.
    Hong, M. H.
    OPTICS EXPRESS, 2011, 19 (06): : 4949 - 4956
  • [29] Phase singularity reduction in speckle interferometry by tailoring the spatial coherence of light
    Mantel, K.
    Barakat, I
    Nercissian, V
    Harder, I
    Rothau, S.
    APPLIED OPTICS, 2021, 60 (23) : 7043 - 7053
  • [30] Plasmonic Interferometry for Biosensing
    Feng, Jing
    Siu, Vince
    Roelke, Alec
    Mehta, Vihang
    Rhieu, Steve
    Palmore, Tayhas
    Pacifici, Domenico
    2012 LESTER EASTMAN CONFERENCE ON HIGH PERFORMANCE DEVICES (LEC), 2012,