Snigdha Mondal

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We perform spectroscopic characterization of graphite plasma to study the species responsible for high-order harmonics generation. We observed that visible region contains vibrational transitions of C2 and C3 molecules. Under the same conditions, we found shorter delays are favorable for intense HHG.
After detection of a target by a Radar, several features of the target can be extracted from its High Resolution Range profile (HRRP). Among all the features, target length is more visual target feature. Target length can be extracted Using a simple threshold approach but the performance is very sensitiv e due to noise and interference. Here we have(More)
We demonstrate an intense broadband terahertz (THz) source based on the interaction of relativistic-intensity femtosecond lasers with aligned copper nanorod array targets. For copper nanorod targets with a length of 5 μm, a maximum 13.8 times enhancement in the THz pulse energy (in ≤20 THz spectral range) is measured as compared to that with a thick plane(More)
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