P P Rajeev
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Explore the profile of P P Rajeev including associated specialties, affiliations and a list of published articles.
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31
Citations
126
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Recent Articles
21.
Rajeev P, Gertsvolf M, Corkum P, Rayner D
Phys Rev Lett
. 2009 Mar;
102(8):083001.
PMID: 19257734
From the pulse length dependence of the absorption of intense ultrashort laser pulses focused inside fused silica, we reveal the role field-assisted collisional ionization plays in the multiphoton ionization process....
22.
Gertsvolf M, Jean-Ruel H, Rajeev P, Klug D, Rayner D, Corkum P
Phys Rev Lett
. 2008 Dec;
101(24):243001.
PMID: 19113617
Using different crystalline dielectrics and intense femtosecond laser pulses, we show that nonlinear absorption depends on sample orientation. This arises primarily because of the direction dependence of the effective mass...
23.
Jung D, Gizzi L, Labate L, Neely D, Notley M, Rajeev P, et al.
Phys Rev E Stat Nonlin Soft Matter Phys
. 2008 Jul;
77(5 Pt 2):056403.
PMID: 18643172
We have characterized the plasma produced by a picosecond laser pulse using x-ray spectroscopy. High-resolution high-sensitivity spectra of K -shell emission from a Ti plasma have been obtained, showing a...
24.
Taylor R, Hnatovsky C, Simova E, Rajeev P, Rayner D, Corkum P
Opt Lett
. 2007 Oct;
32(19):2888-90.
PMID: 17909607
Tightly focused, linearly polarized, femtosecond laser radiation can produce highly birefringent nanograting structures inside fused silica glass. Here we report that when the polarization direction of the femtosecond light is...
25.
Hnatovsky C, Simova E, Rajeev P, Rayner D, Corkum P, Taylor R
Opt Lett
. 2007 Jun;
32(11):1459-61.
PMID: 17546154
We demonstrate that within a restricted optical pulse duration-pulse energy parameter space tightly focused femtosecond laser radiation can be used to fabricate porous capillaries in bulk fused silica glass by...
26.
Staudte A, Pavicic D, Chelkowski S, Zeidler D, Meckel M, Niikura H, et al.
Phys Rev Lett
. 2007 Mar;
98(7):073003.
PMID: 17359022
Using H2+ and D2+, we observe two-surface population dynamics by measuring the kinetic energy of the correlated ions that are created when H2+ (D2+) ionize in short (40-140 fs) and...
27.
Rajeev P, Gertsvolf M, Simova E, Hnatovsky C, Taylor R, Bhardwaj V, et al.
Phys Rev Lett
. 2007 Feb;
97(25):253001.
PMID: 17280346
We demonstrate a shot-to-shot reduction in the threshold laser intensity for ionization of bulk glasses illuminated by intense femtosecond pulses. For SiO2 the threshold change serves as positive feedback reenforcing...
28.
Bhardwaj V, Simova E, Rajeev P, Hnatovsky C, Taylor R, Rayner D, et al.
Phys Rev Lett
. 2006 Feb;
96(5):057404.
PMID: 16486984
Linearly polarized femtosecond light pulses, focused inside fused silica to an intensity that leads to multiphoton ionization, produce arrayed planes of modified material having their normal parallel to the laser...
29.
Rajeev P, Ayyub P, Bagchi S, Kumar G
Opt Lett
. 2004 Nov;
29(22):2662-4.
PMID: 15552678
Recent literature has reported impressive enhancements in hard-x-ray emission from short-lived solid plasmas by modulation of the interacting surface with nanostructures. We show that the modification of local electric fields...
30.
Rajeev P, Taneja P, Ayyub P, Sandhu A, Ravindra Kumar G
Phys Rev Lett
. 2003 Apr;
90(11):115002.
PMID: 12688936
We report significant enhancements in light coupling to intense-laser-created solid plasmas via surface plasmon and "lightning rod" effects. We demonstrate this in metal nanoparticle-coated solid targets irradiated with 100 fs,...