Femtosecond high-resolution spectral phase measurement

1996 ◽  
Author(s):  
Kai-Chien J. Chu ◽  
R. S. Grant ◽  
Jonathan P. Heritage ◽  
Alan Sullivan ◽  
William E. White
Keyword(s):  
High Resolution ◽  
Phase Measurement ◽  
Spectral Phase

scholarly journals Spectral phase measurement of a Fano resonance using tunable attosecond pulses

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
M. Kotur ◽  
D. Guénot ◽  
Á Jiménez-Galán ◽  
D. Kroon ◽  
E. W. Larsen ◽  
...  
Keyword(s):  
Fano Resonance ◽  
Phase Measurement ◽  
Spectral Phase ◽  
Attosecond Pulses

Spectral phase measurement of complex pulses using delay controlled fringe free interferometry technique

2014 ◽  
Vol 23 (02) ◽  
pp. 1450017 ◽  
Author(s):  
Liang Lei ◽  
Xin Liu ◽  
Jin-Hui Wen ◽  
Xiao-Bo Xing ◽  
Bo Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Fourier Transform ◽  
Electric Field ◽  
Femtosecond Pulse ◽  
Phase Measurement ◽  
Spectral Phase ◽  
Pulse Measurement ◽  
Field Reconstruction ◽  
Small Delay ◽  
Free Spectra

The shortcomings in complex femtosecond pulse measurement of conventional spectral phase interferometry for direct electric-field reconstruction (SPIDER) are commented in this paper. To solve the problem, we propose an improved version of SPIDER, where single replica of the unknown pulse upconverts synchronously with two frequency-shifted narrow-banded long pulses. With the introduction of a suitable small delay between the upconverted pulses, the spectral phase of the unknown pulse can be directly calculated from the fringe-free spectra and Fourier-transform filtering is not required. The results of numerical simulation show that the accuracy of the new method in complex pulse measurement is higher than conventional SPIDER.

scholarly journals High resolution kilometric range optical telemetry in air by radio frequency phase measurement

2016 ◽  
Vol 87 (7) ◽  
pp. 075105 ◽  
Author(s):  
Joffray Guillory ◽  
Radek Šmíd ◽  
Jorge García-Márquez ◽  
Daniel Truong ◽  
Christophe Alexandre ◽  
...  
Keyword(s):  
High Resolution ◽  
Radio Frequency ◽  
Phase Measurement ◽  
Frequency Phase

High resolution hologram interferometry by electronic phase measurement

1973 ◽  
Vol 9 (4) ◽  
pp. 412-416 ◽  
Author(s):  
R. Dändliker ◽  
B. Ineichen ◽  
F.M. Mottier
Keyword(s):  
High Resolution ◽  
Phase Measurement ◽  
Electronic Phase ◽  
Hologram Interferometry

HIGH-RESOLUTION PHOTOELECTRON SPECTROSCOPY BY SPECTRAL PHASE STEP MODULATION

2013 ◽  
Vol 22 (04) ◽  
pp. 1350045
Author(s):  
YUNXIA HUANG ◽  
SHUWU XU ◽  
XIAOHUA YANG
Keyword(s):  
High Resolution ◽  
Photoelectron Spectroscopy ◽  
Photoelectron Spectrum ◽  
Modulation Depth ◽  
Spectral Phase ◽  
State Structure ◽  
Phase Step ◽  
Excite State ◽  
Broadband Spectrum ◽  
Photon Ionization

Femtosecond-induced resonance-enhanced multi-photon ionization photoelectron spectroscopy (REMPI-PES) has the drawback of low spectral resolution due to broadband spectrum of the laser. In this paper, we theoretically demonstrate that high-resolution REMPI-PES can be achieved by shaping the femtosecond laser pulse with spectral phase step modulation. Our results show that, by manipulating the phase step position and the modulation depth, a narrowband peak or hole in the photoelectron spectrum can be observed, and the position of the narrowband peak or hole is correlated with the eigenenergy of the excite state. Therefore, both high-resolution REMPI-PES and the excited state structure can be obtained by observing the narrowband peaks or holes.

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