ErAs:In(Al)GaAs photoconductor-based time domain system with 45  THz single shot bandwidth and emitted terahertz power of 164  µW

2020 ◽  
Vol 45 (10) ◽  
pp. 2812 ◽  
Author(s):  
Uttam Nandi ◽  
Katja Dutzi ◽  
Anselm Deninger ◽  
Hong Lu ◽  
Justin Norman ◽  
...  
Keyword(s):  
Time Domain ◽  
Single Shot

Time-resolved single-shot terahertz time-domain spectroscopy for ultrafast irreversible processes

2016 ◽  
Vol 87 (9) ◽  
pp. 095101 ◽  
Author(s):  
Zhao-Hui Zhai ◽  
Sen-Cheng Zhong ◽  
Jun Li ◽  
Li-Guo Zhu ◽  
Kun Meng ◽  
...  
Keyword(s):  
Time Domain ◽  
Irreversible Processes ◽  
Single Shot ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Resolved ◽  
Time Domain Spectroscopy

Single-shot spectral and time domain optical coherence spectroscopy (Conference Presentation)

2019 ◽  
Author(s):  
Szymon Tamborski ◽  
Maciej M. Bartuzel ◽  
Krystian Wrobel ◽  
Maciej Szkulmowski
Keyword(s):  
Time Domain ◽  
Single Shot ◽  
Optical Coherence ◽  
Coherence Spectroscopy

scholarly journals Single-shot terahertz time-domain spectroscopy in pulsed high magnetic fields

2016 ◽  
Vol 24 (26) ◽  
pp. 30328 ◽  
Author(s):  
G. Timothy Noe ◽  
Ikufumi Katayama ◽  
Fumiya Katsutani ◽  
James J. Allred ◽  
Jeffrey A. Horowitz ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Time Domain ◽  
High Magnetic Fields ◽  
Single Shot ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy

Single Shot Time Domain Ghost Imaging using Wavelength Multiplexing

2016 ◽  
Author(s):  
Piotr Ryczkowski ◽  
Margaux Barbier ◽  
Ari. T. Friberg ◽  
John. M. Dudley ◽  
Goëry Genty
Keyword(s):  
Time Domain ◽  
Single Shot ◽  
Ghost Imaging ◽  
Wavelength Multiplexing

Supersonic flow diagnostics by single-shot time-domain coherent anti-Stokes Raman scattering

2000 ◽  
Vol 31 (8-9) ◽  
pp. 689-696 ◽  
Author(s):  
I. Ribet ◽  
B. Scherrer ◽  
P. Bouchardy ◽  
Th. Pot ◽  
J.-P. Taran ◽  
...  
Keyword(s):  
Supersonic Flow ◽  
Raman Scattering ◽  
Time Domain ◽  
Single Shot ◽  
Flow Diagnostics ◽  
Anti Stokes

scholarly journals Applications of Continuous Wave Free Precession Sequences in Low-Field, Time-Domain NMR

2019 ◽  
Vol 9 (7) ◽  
pp. 1312 ◽  
Author(s):  
Tiago Bueno Moraes ◽  
Tatiana Monaretto ◽  
Luiz Colnago
Keyword(s):  
Time Domain ◽  
Continuous Wave ◽  
Signal To Noise Ratio ◽  
Flip Angle ◽  
Time Interval ◽  
Single Shot ◽  
Free Precession ◽  
Signal To Noise ◽  
Low Field ◽  
Noise Ratio

This review discusses the theory and applications of the Continuous Wave Free Precession (CWFP) sequence in low-field, time-domain nuclear magnetic resonance (TD-NMR). CWFP is a special case of the Steady State Free Precession (SSFP) regime that is obtained when a train of radiofrequency pulses, separated by a time interval Tp shorter than the effective transverse relaxation time (T2*), is applied to a sample. Unlike regular pulsed experiments, in the CWFP regime, the amplitude is not dependent on T1. Therefore, Tp should be as short as possible (limited by hardware). For Tp < 0.5 ms, thousands of scans can be performed per second, and the signal to noise ratio can be enhanced by more than one order of magnitude. The amplitude of the CWFP signal is dependent on T1/T2; therefore, it can be used in quantitative analyses for samples with a similar relaxation ratio. The time constant to reach the CWFP regime (T*) is also dependent on relaxation times and flip angle (θ). Therefore, T* has been used as a single shot experiment to measure T1 using a low flip angle (5°) or T2, using θ = 180°. For measuring T1 and T2 simultaneously in a single experiment, it is necessary to use θ = 90°, the values of T* and M0, and the magnitude of CWFP signal |Mss|. Therefore, CWFP is an important sequence for TD-NMR, being an alternative to the Carr-Purcell-Meiboom-Gill sequence, which depends only on T2. The use of CWFP for the improvement of the signal to noise ratio in quantitative and qualitative analyses and in relaxation measurements are presented and discussed.

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