We present a single-shot detection method of terahertz correlated second harmonic generation in plasma-based sources by directly mixing an optical probe into femtosecond laser-induced plasma filaments in air. The single-shot second harmonic trace is obtained by measuring a second harmonic generation on a conventional CCD with a spatiotemporally distorted probe beam. The system shows a spectrometer resolution of 22 fs/pixel on the CCD and a true resolution on the order of the probe pulse duration. With considerable THz peak electric field strength, this formalism can open the door to single-shot THz detection without bandwidth limitations. 
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                            Cavity-enhanced optical parametric generation in a modal-phase-matched lithium niobate microring
                        
                    
    
            We report cavity-enhanced second-harmonic generation and difference-frequency generation in a high-Q lithium niobate microring resonator with modal phase matching. The second-harmonic generation efficiency is measured to be 1,500% W1. 
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                            - Award ID(s):
- 1719875
- PAR ID:
- 10148292
- Date Published:
- Journal Name:
- Cleo
- ISSN:
- 1993-5730
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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