Application of a wavelength-independent autocorrelator for characterization of sub-100 femtosecond UV pulses from an OPA

Autor: Daniel Rolles, Artem Rudenko, Catherine Mikhailova, Huynh Van Sa Lam, Surjendu Bhattacharyya, Anbu Venkatachalam, Zane Phelps, John Searles

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::673236040e6e41c1751738990b9b2ece
https://doi.org/10.26226/m.6275705d66d5dcf63a3115d2

Angle-dependent strong-field ionization and fragmentation of carbon dioxide measured using rotational wave packets

Autor: Suresh Yarlagadda, Thomas Weinacht, Peter Svihra, Andrei Nomerotski, Vinod Kumarappan, Daniel Rolles, Chuan Cheng, Tomthin Nganba Wangjam, R. K. Kushawaha, Huynh Lam, Anbu Venkatachalam

Publikováno v: Lam, H V S, Yarlagadda, S, Venkatachalam, A, Wangjam, T N, Kushawaha, R K, Cheng, C, Svihra, P, Nomerotski, A, Weinacht, T, Rolles, D & Kumarappan, V 2020, ' Angle-dependent strong-field ionization and fragmentation of carbon dioxide measured using rotational wave packets ', Physical Review A, vol. 102, no. 4, 043119 . https://doi.org/10.1103/PhysRevA.102.043119

In this work, we experimentally study the angle-dependent single ionization of carbon dioxide (CO2) by linearly and circularly polarized pulses. The angle dependence of the ionization probability by linearly polarized pulses extracted from time-domai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afef49f8eea9324d226131d311815d53
https://doi.org/10.1103/physreva.102.043119

Development of High-Speed Ultrawideband Ground-Penetrating Radar for Rebar Detection

Autor: Anbu Venkatachalam, Tian Xia, Xianli Xu, Dryver R. Huston

Publikováno v: Journal of Engineering Mechanics. 139:272-285

This paper describes the development of new air-coupled ultrawideband ground-penetrating radar (GPR) for highway pavement and bridge deck inspections that can achieve high spatial resolution and high inspection performance while operating on vehicles

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::29bbe8a39cbe9f810c8f12df86511ee5
https://doi.org/10.1061/(asce)em.1943-7889.0000458

Note: An ion imaging spectrometer for studying photo-induced fragmentation in small molecules

Autor: Ram Gopal, Arnab Sen, M. Anand, Anbu Venkatachalam, S. R. Sahu, Vandana Sharma

Publikováno v: Review of Scientific Instruments. 89:086107

A three-dimensional ion imaging spectrometer has been designed and calibrated by ion trajectories simulations. We present a recipe for the verification of the calibration by obtaining kinetic energy (KE) distribution from the recorded flight times al

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c8d24c72df27258731b19daee0189c6
https://doi.org/10.1063/1.5049844

Advanced signal processing method for ground penetrating radar feature detection and enhancement

Autor: Anbu Venkatachalam, Dryver R. Huston, Tian Xia, Yu Zhang

Publikováno v: SPIE Proceedings.

This paper focuses on new signal processing algorithms customized for an air coupled Ultra-Wideband (UWB) Ground Penetrating Radar (GPR) system targeting highway pavements and bridge deck inspections. The GPR hardware consists of a high-voltage pulse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4c5edcc640fdd4d7690a582744958a97
https://doi.org/10.1117/12.2046338