scholarly journals Adiabatic and diabatic process of sum frequency conversion

2010 ◽  
Vol 18 (19) ◽  
pp. 20428 ◽  
Author(s):  
Ren Liqing ◽  
Li Yongfang ◽  
Li Baihong ◽  
Wang Lei ◽  
Wang Zhaohua
Keyword(s):  
Frequency Conversion ◽  
Sum Frequency ◽  
Diabatic Process

scholarly journals Harnessing temporal modes for multi-photon quantum information processing based on integrated optics

2017 ◽  
Vol 375 (2099) ◽  
pp. 20160244 ◽  
Author(s):  
G. Harder ◽  
V. Ansari ◽  
T. J. Bartley ◽  
B. Brecht ◽  
C. Silberhorn
Keyword(s):  
Integrated Optics ◽  
Frequency Conversion ◽  
Quantum Information Processing ◽  
Single Photon ◽  
Photon Number ◽  
Integrated Optics Devices ◽  
Sum Frequency ◽  
Temporal Modes ◽  
Quantum Technology ◽  
Photon States

In the last few decades, there has been much progress on low loss waveguides, very efficient photon-number detectors and nonlinear processes. Engineered sum-frequency conversion is now at a stage where it allows operation on arbitrary temporal broadband modes, thus making the spectral degree of freedom accessible for information coding. Hereby the information is often encoded into the temporal modes of a single photon. Here, we analyse the prospect of using multi-photon states or squeezed states in different temporal modes based on integrated optics devices. We describe an analogy between mode-selective sum-frequency conversion and a network of spatial beam splitters. Furthermore, we analyse the limits on the achievable squeezing in waveguides with current technology and the loss limits in the conversion process. This article is part of the themed issue ‘Quantum technology for the 21st century’.

Photon-pair generation and sum-frequency conversion in nonlinear dielectric nanoresonators

2016 ◽  
Author(s):  
Alexander S. Solntsev ◽  
Luca Carletti ◽  
Lei Xu ◽  
Alexander N. Poddubny ◽  
Costantino De Angelis ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Photon Pair ◽  
Nonlinear Dielectric ◽  
Sum Frequency ◽  
Pair Generation

scholarly journals Double resonant sum-frequency generation in an external-cavity under high-efficiency frequency conversion

2016 ◽  
Vol 65 (7) ◽  
pp. 074202
Author(s):  
Tan Wei ◽  
Qiu Xiao-Dong ◽  
Zhao Gang ◽  
Hou Jia-Jia ◽  
Jia Meng-Yuan ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
High Efficiency ◽  
External Cavity ◽  
Sum Frequency Generation ◽  
Sum Frequency ◽  
Frequency Generation

scholarly journals Multicolor Time‐Resolved Upconversion Imaging by Adiabatic Sum Frequency Conversion

2020 ◽  
Vol 14 (10) ◽  
pp. 2000040
Author(s):  
Michael Mrejen ◽  
Yoni Erlich ◽  
Assaf Levanon ◽  
Haim Suchowski
Keyword(s):  
Frequency Conversion ◽  
Time Resolved ◽  
Sum Frequency

scholarly journals Broadband frequency conversion of ultrashort pulses using high-Q metasurface cavities

2022 ◽  
Author(s):  
Timo Stolt ◽  
Mikko J. Huttunen
Keyword(s):  
Frequency Conversion ◽  
Ultrashort Pulses ◽  
Sum Frequency ◽  
High Q ◽  
A Value ◽  
Experimental Configuration ◽  
Cavity Configuration ◽  
Conversion Efficiencies ◽  
Spatially Dispersive ◽  
Broadband Frequency

Abstract Frequency conversion of light can be dramatically enhanced using high quality factor (Q-factor) cavities. Unfortunately, the achievable conversion efficiencies and conversion bandwidths are fundamentally limited by the time–bandwidth limit of the cavity, restricting their use in frequency conversion of ultrashort pulses. Here, we propose and numerically demonstrate sum-frequency generation based frequency conversion using a metasurface-based cavity configuration that could overcome this limitation. The proposed experimental configuration takes use of the spatially dispersive responses of periodic metasurfaces supporting collective surface lattice resonances (SLRs), and can be utilized for broadband frequency conversion of ultrashort pulses. We investigate a plasmonic metasurface, supporting a high-Q SLR (Q=500, linewidth of 2 nm) centred near 1000 nm, and demonstrate ~1000-fold enhancements of nonlinear signals. Furthermore, we demonstrate broadband frequency conversion with a pump conversion bandwidth reaching 75 nm, a value that greatly surpasses the linewidth of the studied cavity. Our work opens new avenues to utilize high-Q metasurfaces also for broadband frequency conversion of light.

scholarly journals Sum frequency conversion of multiline CO laser emission in BaGa2GeSe6 crystal of one cm long

2019 ◽  
Vol 1189 ◽  
pp. 012023
Author(s):  
D V Badikov ◽  
V V Badikov ◽  
A A Ionin ◽  
I O Kinyaevskiy ◽  
Yu M Klimachev ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Laser Emission ◽  
Co Laser ◽  
Sum Frequency
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