Giant magneto-refractive effect in mid-infrared second-harmonic generation from plasmonic antennas

2020 ◽  
Vol 45 (15) ◽  
pp. 4296
Author(s):  
Ilya Razdolski ◽  
Gaspar Armelles ◽  
Alfonso Cebollada ◽  
Andrei Kirilyuk
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Mid Infrared

scholarly journals Modeling of second harmonic generation in hole-doped silicon-germanium quantum wells for mid-infrared sensing

2018 ◽  
Vol 26 (24) ◽  
pp. 31861 ◽  
Author(s):  
Jacopo Frigerio ◽  
Andrea Ballabio ◽  
Michele Ortolani ◽  
Michele Virgilio
Keyword(s):  
Second Harmonic Generation ◽  
Quantum Wells ◽  
Harmonic Generation ◽  
Silicon Germanium ◽  
Second Harmonic ◽  
Mid Infrared ◽  
Infrared Sensing ◽  
Doped Silicon

scholarly journals Second-harmonic generation and self-phase modulation of few-cycle mid-infrared pulses

2019 ◽  
Vol 44 (16) ◽  
pp. 4079
Author(s):  
Bo-Han Chen ◽  
Christina Hofer ◽  
Ioachim Pupeza ◽  
Peter Baum
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Phase Modulation ◽  
Second Harmonic ◽  
Mid Infrared ◽  
Self Phase Modulation

scholarly journals Investigation of Mid-Infrared Broadband Second-Harmonic Generation in Non-Oxide Nonlinear Optic Crystals

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 921
Author(s):  
Ilhwan Kim ◽  
Donghwa Lee ◽  
Kwang Jo Lee
Keyword(s):  
Second Harmonic Generation ◽  
Nonlinear Optic ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Short Pulse ◽  
Optical Signal ◽  
Fundamental Wave ◽  
Molecular Fingerprint ◽  
Mid Infrared ◽  
Wide Range

The mid-infrared (mid-IR) continuum generation based on broadband second harmonic generation (SHG) (or difference frequency generation) is of great interest in a wide range of applications such as free space communications, environmental monitoring, thermal imaging, high-sensitivity metrology, gas sensing, and molecular fingerprint spectroscopy. The second-order nonlinear optic (NLO) crystals have been spotlighted as a material platform for converting the wavelengths of existing lasers into the mid-IR spectral region or for realizing tunable lasers. In particular, the spectral coverage could be extended to ~19 µm with non-oxide NLO crystals. In this paper, we theoretically and numerically investigated the broadband SHG properties of non-oxide mid-IR crystals in three categories: chalcopyrite semiconductors, defect chalcopyrite, and orthorhombic ternary chalcogenides. The technique is based on group velocity matching between interacting waves in addition to birefringent phase matching. We will describe broadband SHG characteristics in terms of beam propagation directions, spectral positions of resonance, effective nonlinearities, spatial walk-offs between interacting beams, and spectral bandwidths. The results will show that the spectral bandwidths of the fundamental wave allowed for broadband SHG to reach several hundreds of nm. The corresponding SH spectral range spans from 1758.58 to 4737.18 nm in the non-oxide crystals considered in this study. Such broadband SHG using short pulse trains can potentially be applied to frequency up-conversion imaging in the mid-IR region, in information transmission, and in nonlinear optical signal processing.

Mid-infrared second-harmonic generation in ultra-thin plasmonic metasurfaces without a full-metal backplane

2018 ◽  
Vol 124 (7) ◽  
Author(s):  
Nishant Nookala ◽  
Jiaming Xu ◽  
Omri Wolf ◽  
Stephen March ◽  
Raktim Sarma ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Mid Infrared
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