Listar por autor "Purohit, Pablo"
Mostrando ítems 1-15 de 15
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A multipurpose thermal vacuum chamber for planetary research compatible with stand-off laser spectroscopies
Laserna-Vázquez, José Javier
; Alvarez-Llamas, César; Purohit, Pablo; Moros-Portoles, Javier; Lucena, Patricia; Vadillo-Perez, Jose Miguel[et al.] (2022)
Stand-off spectroscopies and imaging techniques have gained a proper niche within the modern tools in remote compositional analysis for exploration in-situ planetary surface using rovers. Laser-induced breakdown spectrometry ... -
A systematic evaluation on the impact of sample-related and environmental factors in the analytical performance of acoustic emission from laser-induced plasmas
Bosáková, Markéta; Purohit, Pablo; Alvarez-Llamas, César; Moros-Portoles, Javier; Novotný, Karel; Laserna-Vázquez, José Javier[et al.] (Elsevier, 2022-09-08)
Acoustics recordings from laser-induced plasmas are becoming increasingly regarded as a complementary source of information from the inspected sample. The propagation of these waves is susceptible to be modified by the ... -
Attogram sensitivity through laser-induced breakdown spectroscopy of single optically-trapped nanoparticles
Purohit, Pablo; Laserna-Vázquez, José Javier (2017-07-10)
Current trends in nanoengineering are bringing along new structures for usage over a wide variety of fields: from readily available products, e.g., clothes or foodstuff, to next-generation electronics or drugs. To suit ... -
Development of a laser-based analytical platform for the LIBS inspection of individual nanoparticles within an atmospheric pressure optical trap
(UMA Editoria, 2021-02-02)En esta tesis doctoral se presenta un sensor basado en LIBS como técnica de inspección para la caracterización de nanopartículas individuales. El cuerpo de este trabajo se divide en cuatro capítulos en los que se recoge, ... -
Hyperspectral LIBS imaging of single-optically trapped particles
The interaction between discrete particles with laser-induced plasma presents some complexities that directly affects the analysis of bulk aerosols by LIBS. Single-particle analysis is not exempt of this kind of phenomena ... -
LIBS and Acoustic Measurements of Rocks and Regolith Found in the Traverse of the Perseverance Rover Across the Jezero Crater, Mars
Laserna-Vázquez, José Javier; Moros-Portoles, Javier; Alvarez-Llamas, César; Purohit, Pablo; Ángel, S. M.; Bernardi, P.; Bousquet, O.; Cadu, A.; Chide, B.; Clavé, E.; Clegg, S.; Dauson, E.; Forni, O.; Fouchet, T.; Gasnault, O.; Jacob, X.; Lacombe, G.; Lanza, N. L.; Larmat, C.; Lasue, J.; Lorenz, R. D.; Meslin, P. - Y.; Montmessin, F.; Murdoch, N.; Ollila, A. M.; Pilleri, P.; Reyes-Newell, A. L.; Schroder, S.; Stott, A.; Cate, J. Ten; Vogt, D.; Maurice, S.; Wiens, R.C.; Mimoun, D.[et al.] (2022)
The SuperCam instrument of the NASA MARS 2020 Perseverance rover combines a suite of atomic and molecular spectroscopies intended for an extensive description of rocks, soils and minerals in the surroundings of the landing ... -
LIBS-Acoustic Mid-Level Fusion Scheme for Mineral Differentiation under Terrestrial and Martian Atmospheric Conditions
Alvarez-Llamas, César; Purohit, Pablo; Laserna-Vázquez, José Javier (American Chemical Society, 2022-01-12)
The shockwave produced alongside the plasma during a laser-induced breakdown spectroscopy event can be recorded as an acoustic pressure wave to obtain information related to the physical traits of the inspected sample. In ... -
Mechanical traits of isolated nuclei inspected via force spectroscopy
(2022-09)The larger stiffness of the nuclei when compared to the rest of the cell imposes a key restriction to cell deformability and their capability to traverse interstices. In contrast, cancerous cells have been reported to ... -
OC-OT-LIBS: A novel approach to the chemical characterization of single particles
Spectral identification of individual micro- and nano-sized particles by the sequential intervention of optical catapulting, optical trapping and laser-induced breakdown spectroscopy is presented [1]. The three techniques ... -
Polydispersity and fractionation in laser ablation studied by LIBS in an optical trap
LIBS characterization of aerosols produced by laser ablation of bulk samples is strongly influenced by variations of physicohemical properties of the elements integrating the matrix. Among the consequences of these changes ... -
Simultaneous LIBS acoustic detection for mineral differentiation. Imaging and standoff studies under terrestrial and martian atmospheric conditions
Alvarez-Llamas, César; Bosakova, Marketa; Purohit, Pablo; Moros-Portoles, Javier; Laserna-Vázquez, José Javier (2022)
The combination of data simultaneously generated by laser-induced breakdown spectroscopy (LIBS) and laser-induced acoustics (LIAc) is a topic of many potential applications as both phenomena cover different sample traits. ... -
Spectral identification in the attogram regime through laser induced breakdown spectroscopy of single optically-trapped nanoparticles in air
Laserna-Vázquez, José Javier; Purohit, Pablo (2017-10-20)
Current trends in nanoengineering are bringing along new structures of diverse chemical compositions that need to be meticulously defined to ensure their correct operation. Few methods can provide the sensitivity required ... -
The sound of geological targets on Mars from the absolute intensity of laser-induced sparks shock waves
Alvarez-Llamas, César; Laserna-Vázquez, José Javier; Moros-Portoles, Javier; Purohit Pacheco, Pablo; García-Gómez, Laura; Ángel, S.M.; Bernardi, P.; Bousquet, B.; Cadu, A.; Dauson, E.; Forni, O.; Fouchet, T.; Gasnault, O.; Jacob, X.; Lacombe, G.; Lanza, N.L.; Larmat, C.; Lasue, J.; Lorenz, R.D.; Meslin, P. -Y.; Mimoun, D.; Montmessin, F.; Murdoch, N.; Ollila, A.M.; Pilleri, P.; Randazzo, N.; Reyes-Newell, A.L.; Schröder, S.; Stott, A.; Cate, J. Ten; Udry, A.; Vogt, D.; Clegg, S.; Cousin, A.; Maurice, S.; Wiens, R.C.[et al.] (Elsevier, 2023)
Inspection of geological material is one of the main goals of the Perseverance rover during its journey across the landscape of the Jezero crater in Mars. NASA's rover integrates SuperCam, an instrument capable of performing ... -
Understanding The Correlation Of Libs And Acoustic Measurements Of Rocks And Soils Found In The Traverse Of The Perseverance Rover Across The Jezero Crater, Mars
Laserna-Vázquez, José Javier; Alvarez-Llamas, César; Moros-Portoles, Javier; Purohit, Pablo; Ángel, S.M.; Bernardi, P.; Beyssac, O.; Bousquet, B.; Cadu, A.; Chide, B.; Clavé, E.; Clegg, S.; Dauson, E.; Forni, O.; Fouchet, T.; Gasnault, O.; Jacob, X.; Lacombe, G.; Lanza, N.L.; Larmat, C.; Lasue, J.; Lorenz, R.D.; Meslin, P. -Y.; Montmessin, F.; Murdoch, N.; Ollila, A.M.; Pilleri, P.; Reyes-Newell, A. L.; Schröder, S.; Stott, A.; Cate, J. Ten; Vogh, D.; Maurice, S.; Wiens, R.C.; Mimoun, D.[et al.] (2022)
The SuperCam instrument of the NASA MARS 2020 Perseverance rover combines a suite of atomic and molecular spectroscopies intended for an extensive description of rocks, soils and minerals in the surroundings of the landing ...