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Nonlinear optics with quantum-engineered intersubband metamaterials

机译:具有量子工程子带间超材料的非线性光学

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摘要

Intersubband transitions in n-doped semiconductor heterostructures provide the possibility to quantum engineer one of the largest known nonlinear optical responses in condensed matter systems, limited however to electric field polarized normal to the semiconductor layers. Here we show that by coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered intersubband transitions in semiconductor heterostructures one can create ultra-thin highly-nonlinear metasurfaces for normal light incidence. Structures discussed here represent a novel kind of hybrid metal-semiconductor metamaterials in which exotic optical properties are produced by coupling electromagnetically-engineered modes in dielectric and plasmonic nanostructures with quantum-engineered intersubband transitions in semiconductor heterostructures. Record values of effective optical nonlinearities of over 400 nm/V are experimentally measured for metasurfaces optimized for efficient second harmonic generation at 9.7 μm pump wavelength under normal incidence.
机译:n掺杂的半导体异质结构中的子带间跃迁为量子工程提供了一种可能性,可以使凝聚态系统中最大的已知非线性光学响应之一,但仅限于垂直于半导体层极化的电场。在这里,我们表明,通过将等离子激元表面中的电磁模式与半导体异质结构中的量子工程化的子带间跃迁耦合,可以创建超薄的高度非线性的次表面,以实现正常的光入射。这里讨论的结构代表了一种新型的混合金属-半导体超材料,其中通过将介电和等离激元纳米结构中的电磁工程模式与半导体异质结构中的量子工程子带间跃迁耦合来产生奇异的光学特性。实验测量了超表面的有效光学非线性记录值超过400 nm / V,该超表面优化了法向入射时在9.7μm泵浦波长下能有效产生二次谐波的情况。

著录项

  • 来源
    《Novel in-plane semiconductor lasers XIV》|2015年|938216.1-938216.7|共7页
  • 会议地点 San Francisco CA(US)
  • 作者单位

    Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78758, U.S.A.;

    Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78758, U.S.A.;

    Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78758, U.S.A.;

    Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78758, U.S.A.;

    Walter Schottky Institut, Technische Universitaet Muenchen, Am Coulombwall 4, Garching 85748, Germany;

    Walter Schottky Institut, Technische Universitaet Muenchen, Am Coulombwall 4, Garching 85748, Germany;

    Walter Schottky Institut, Technische Universitaet Muenchen, Am Coulombwall 4, Garching 85748, Germany;

    Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78758, U.S.A.;

    Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78758, U.S.A.;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Metamaterials; Plasmonics; Second harmonic generation; Intersubband transitions; Semiconductor nonlinear optics including MQW;

    机译:超材料;等离子二次谐波的产生;子带间过渡;包括MQW的半导体非线性光学;

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