Nanoantenna-controlled radiation pattern of the third-harmonic emission

Stiehm, Torsten; Kern, Johannes; Jürgensen, Marius; Vasconcellos, Steffen Michaelis de; Bratschitsch, Rudolf

doi:10.1007/s00340-016-6390-3

Cited by 3 publications

(3 citation statements)

References 26 publications

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“…According to the reciprocity theorem, nano-antenna can be regarded in its transmitting as well as receiving mode and, therefore, it can also be employed for antenna coupled emission. This concept has already been applied in the visible range [ 97 , 98 , 99 , 100 ], but it has not yet been deeply researched in the IR band. Antenna coupled IR emitters have a great potential to replace the bulky radiation source in applications, such as spectroscopy, promoting a more compact and portable solution.…”

Section: Discussionmentioning

confidence: 99%

Nano-Antenna Coupled Infrared Detector Design

Mubarak

Sidek

Abdel‐Rahman

et al. 2018

Sensors

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Since the 1940s, infrared (IR) detection and imaging at wavelengths in the two atmospheric windows of 3 to 5 and 8 to 14 μm has been extensively researched. Through several generations, these detectors have undergone considerable developments and have found use in various applications in different fields including military, space science, medicine and engineering. For the most recently proposed generation, these detectors are required to achieve high-speed detection with spectral and polarization selectivity while operating at room temperature. Antenna coupled IR detectors appear to be the most promising candidate to achieve these requirements and has received substantial attention from research in recent years. This paper sets out to present a review of the antenna coupled IR detector family, to explore the main concepts behind the detectors as well as outline their critical and challenging design considerations. In this context, the design of both elements, the antenna and the sensor, will be presented individually followed by the challenging techniques in the impedance matching between both elements. Some hands-on fabrication techniques will then be explored. Finally, a discussion on the coupled IR detector is presented with the aim of providing some useful insights into promising future work.

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Section: Discussionmentioning

confidence: 99%

Nano-Antenna Coupled Infrared Detector Design

Mubarak

Sidek

Abdel‐Rahman

et al. 2018

Sensors

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“…As in a double-slit experiment, interference fringes in the angular intensity distribution signal coherence between the slits. Such experiments [79,80] demonstrate that the third-harmonic emission stems from the centre of short rod antennas. A surface or a hot-spot contribution would lead to distinctively different emission patterns and is thus much weaker, if present at all.…”

Section: Imaging Third-harmonic Emissionmentioning

confidence: 99%

“…When the plasmonic nanostructure is larger than the third-harmonic wavelength, it becomes possible to image the third-harmonic emission by a high-resolution optical microscope, either in real-space or in reciprocal space [72,[79][80][81]. The latter gives information about the emission direction and also about coherence between different emitting points.…”

Section: Imaging Third-harmonic Emissionmentioning

confidence: 99%

Nonlinear spectroscopy of plasmonic nanoparticles

Obermeier

Schumacher

Lippitz

2018

Advances in Physics: X

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The plasmon resonance of a metal nanoparticle increases the optical field amplitude in and around the particle with respect to the incoming wave. In consequence, optical effects that are nonlinear in their field amplitude profit from this increased field. In general, a plasmonic structure can react nonlinearly by itself and it can also enhance the effect of the nonlinearity in its environment, which we consider as plasmonic nanoantenna. In this paper, we review third-order nonlinear effects such as third-harmonic generation, pump-probe spectroscopy, coherent anti-Stokes Raman scattering and four-wave mixing of and near plasmonic nanostructures. All these processes are described by very similar equations for the nonlinear polarization, but the underling physics differs.

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