scholarly journals Cavity-enhanced sum-frequency generation of blue light with near-unity conversion efficiency

2020 ◽  
Vol 28 (3) ◽  
pp. 3975 ◽  
Author(s):  
Hugo Kerdoncuff ◽  
Jesper B. Christensen ◽  
Túlio B. Brasil ◽  
Valeriy A. Novikov ◽  
Eugene S. Polzik ◽  
...  
Keyword(s):  
Blue Light ◽  
Conversion Efficiency ◽  
Sum Frequency Generation ◽  
Sum Frequency ◽  
Frequency Generation

Double-Resonant Sum-Frequency Generation of Blue Light with Near-Unity Quantum Conversion Efficiency

2020 ◽  
Author(s):  
Hugo Kerdoncuff ◽  
Jesper B. Christensen ◽  
Tulio B. Brasil ◽  
Valeriy A. Novikov ◽  
Eugene Polzik ◽  
...  
Keyword(s):  
Blue Light ◽  
Conversion Efficiency ◽  
Sum Frequency Generation ◽  
Sum Frequency ◽  
Frequency Generation

Intracavity sum-frequency generation of CW blue light in Nd:LuVO4 laser

Laser Physics ◽  
2011 ◽  
Vol 21 (6) ◽  
pp. 1051-1053 ◽  
Author(s):  
C. L. Li ◽  
G. C. Sun ◽  
X. Yu ◽  
B. Z. Li ◽  
X. Y. Chen ◽  
...  
Keyword(s):  
Blue Light ◽  
Sum Frequency Generation ◽  
Sum Frequency ◽  
Frequency Generation

Terahertz wave detection by plasmonic-antenna enhanced sum frequency generation

2021 ◽  
pp. 2050008
Author(s):  
Jie Sun ◽  
Fangxing Zhang ◽  
Zhihao Zhou ◽  
Dongyi Shen ◽  
Qiao Kang ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Detection System ◽  
Field Enhancement ◽  
Sum Frequency Generation ◽  
Indirect Detection ◽  
Generation Process ◽  
Optical Wave ◽  
Sum Frequency ◽  
Thz Wave ◽  
Frequency Generation

We propose a scheme of terahertz (THz) indirect detection via plasmonic-antenna enhanced sum frequency generation process, where the THz wave is converted to optical wave that is detected by photodetector. The gold antenna built in the structure can improve the conversion efficiency by enhancing both the optical wave and THz wave. The numerical simulations show that the field enhancement is influenced by the geometry of the antenna, so the conversion efficiency can be improved highly by optimizing the antenna. Compared with commercial detectors, our detection system has a much lower noise equivalent power (NEP) of 15.4[Formula: see text]pW/[Formula: see text] at 5[Formula: see text]THz.

scholarly journals Generation of blue light by sum-frequency generation of a spectrally combined broad-area diode laser array

2016 ◽  
Vol 41 (20) ◽  
pp. 4712 ◽  
Author(s):  
Zhanda Zhu ◽  
Menghua Jiang ◽  
Haoyang Yu ◽  
Yongling Hui ◽  
Hong Lei ◽  
...  
Keyword(s):  
Diode Laser ◽  
Blue Light ◽  
Sum Frequency Generation ◽  
Laser Array ◽  
Broad Area ◽  
Sum Frequency ◽  
Frequency Generation

scholarly journals Direct visualization of phase-matched efficient second harmonic and broadband sum frequency generation in hybrid plasmonic nanostructures

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Zhe Li ◽  
Brian Corbett ◽  
Agnieszka Gocalinska ◽  
Emanuele Pelucchi ◽  
Wen Chen ◽  
...  
Keyword(s):  
Conversion Efficiency ◽  
Second Harmonic ◽  
Effective Means ◽  
Sum Frequency Generation ◽  
Mode Analysis ◽  
Plasmonic Nanostructures ◽  
Integrated Photonics ◽  
Direct Visualization ◽  
Sum Frequency ◽  
Frequency Generation

Abstract Second harmonic generation and sum frequency generation (SHG and SFG) provide effective means to realize coherent light at desired frequencies when lasing is not easily achievable. They have found applications from sensing to quantum optics and are of particular interest for integrated photonics at communication wavelengths. Decreasing the footprints of nonlinear components while maintaining their high up-conversion efficiency remains a challenge in the miniaturization of integrated photonics. Here we explore lithographically defined AlGaInP nano(micro)structures/Al2O3/Ag as a versatile platform to achieve efficient SHG/SFG in both waveguide and resonant cavity configurations in both narrow- and broadband infrared (IR) wavelength regimes (1300–1600 nm). The effective excitation of highly confined hybrid plasmonic modes at fundamental wavelengths allows efficient SHG/SFG to be achieved in a waveguide of a cross-section of 113 nm × 250 nm, with a mode area on the deep subwavelength scale (λ2/135) at fundamental wavelengths. Remarkably, we demonstrate direct visualization of SHG/SFG phase-matching evolution in the waveguides. This together with mode analysis highlights the origin of the improved SHG/SFG efficiency. We also demonstrate strongly enhanced SFG with a broadband IR source by exploiting multiple coherent SFG processes on 1 µm diameter AlGaInP disks/Al2O3/Ag with a conversion efficiency of 14.8% MW−1 which is five times the SHG value using the narrowband IR source. In both configurations, the hybrid plasmonic structures exhibit >1000 enhancement in the nonlinear conversion efficiency compared to their photonic counterparts. Our results manifest the potential of developing such nanoscale hybrid plasmonic devices for state-of-the-art on-chip nonlinear optics applications.

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