Harmonic Generation from Neutral Manganese Atoms in the Vicinity of the Giant Autoionization Resonance

Fareed, M. A.; Strelkov, V. V.; Singh, Mangaljit; Thiré, Nicolas; Mondal, Sudipta; Schmidt, Bruno E.; Légaré, François; Ozaki, T.

doi:10.1103/physrevlett.121.023201

Cited by 52 publications

(18 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…High-order harmonic generation (HHG) in extreme ultraviolet (XUV) range, which occurs when an intense laser pulse interacts with laser-induced plasma (LIP) formed by another laser pulse on the surfaces of bulk targets, is a rich field for a variety of material studies [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The high-order nonlinear optical properties of various inorganic nanoparticles (Ag, Au, Pd, Pt, Ru, BaTiO 3 , and SrTiO 3 ) appearing in LIP were reviewed in [16].…”

Section: Introductionmentioning

confidence: 99%

Probing Laser Plasma Dynamics Using High-Order Harmonics Generation in Carbon-Containing Nanomaterials

et al. 2021

View full text Add to dashboard Cite

We study high-order harmonics generation from plasmas generated from graphite, fullerenes, carbon nanotubes, carbon nanofibers, diamond nanoparticles, and graphene. Our approach utilizes a heating nanosecond laser pulse to produce plasmas that serve as the media for high harmonic generation from a subsequent driven femtosecond laser pulse. High harmonics are generated at different time delays following the plasma formation, which allows us to analyze the spreading of species with different masses. We analyze the harmonic yields from species of single carbon atom, 60 atoms (fullerene), 106 atoms (diamond nanoparticles), 109 atoms (CNTs and CNFs), and even much larger species of graphene sheets. The harmonic yields are analyzed in the range of 100 ns–1 ms delays. The harmonic yields were significantly higher within the 200 ns–0.5 µs range, but no harmonic is observed between 10 µs–1 ms. Our observations show that, at the optimal ablation of atoms and clusters, the laser-induced plasmas produced on the surfaces of different carbon-contained species spread out from targets with the comparable velocities.

show abstract

Section: Introductionmentioning

confidence: 99%

Probing Laser Plasma Dynamics Using High-Order Harmonics Generation in Carbon-Containing Nanomaterials

et al. 2021

View full text Add to dashboard Cite

show abstract

“…3 Another important subject of investigation with HHG from LAP is the phenomenon of strong RH emission found in many materials. 32,33 The conversion efficiency of RH has been observed to be one to two-orders of magnitude higher than that of the neighboring harmonics generated by the three-step process. Therefore, here we study RH of tin for generating XUV-OVs.…”

mentioning

confidence: 99%

Intense vortex high-order harmonics generated from laser-ablated plume

Singh

Fareed

Laramée

et al. 2019

Applied Physics Letters

Self Cite

View full text Add to dashboard Cite

In this study, we demonstrate intense extreme-ultraviolet optical vortices generated using laserablation plume as the nonlinear medium. We used two types of plumes that are known to generate intense high-order harmonics for driving lasers with Gaussian beam profiles, but through different mechanisms, namely carbon (diatomic carbon molecules) and tin (resonance with autoionizing state). We find that the harmonic fluxes for diatomic carbon molecules are similar for Gaussian and vortex driving fields. However, for harmonics from the autoionizing state of tin (~26.3 eV), the enhancement factor of the resonant harmonic intensity decreases by ~50% when using the vortex driving field. The intense extreme-ultraviolet optical vortices demonstrated in this study will be useful for many applications including a new material characterization technique known as optical angular momentum dichroism as well as the spectroscopy of spin-forbidden electronic transitions.

show abstract

“…Notice that the application of the 1030 nm wavelength in these studies did not allow the observation of the resonance enhancement of harmonics in Mn plasma, which has been demonstrated using other laser sources (800 nm [47] and 1820 nm [48]). This difference in harmonic spectra using various laser sources points out the role of proper matching of the wavelengths of some harmonics and ionic transitions possessing high oscillator strengths.…”

Section: Resultsmentioning

confidence: 81%

Application of 150 kHz Laser for High-Order Harmonic Generation in Different Plasmas

et al. 2020

View full text Add to dashboard Cite

Application of high pulse repetition rate lasers opens the way for increasing the average flux of the high-order harmonics generating in the ions- and nanoparticles-containing plasmas ablated on the surfaces of various metal targets. We demonstrate the harmonic generation of 37 fs, 150 kHz, 1030 nm, 0.5 mJ pulses in different plasmas. The formation of plasma plumes on the surfaces of carbon, titanium, boron, zinc, and manganese targets was performed during laser ablation, using 250 fs pulses from the same laser. The ablation of the mixed powder of boron nanoparticles and silver microparticles was used for generation of harmonics with high yield. Harmonics up to the fortieth orders from the carbon plasma were obtained. The estimated conversion efficiencies in laser-produced plasmas were ≤10−5. The photon flux for a single harmonic generating in carbon plasma was estimated to be 8 × 1013 photons/s.

show abstract

Harmonic Generation from Neutral Manganese Atoms in the Vicinity of the Giant Autoionization Resonance

Cited by 52 publications

References 41 publications

Probing Laser Plasma Dynamics Using High-Order Harmonics Generation in Carbon-Containing Nanomaterials

Probing Laser Plasma Dynamics Using High-Order Harmonics Generation in Carbon-Containing Nanomaterials

Intense vortex high-order harmonics generated from laser-ablated plume

Application of 150 kHz Laser for High-Order Harmonic Generation in Different Plasmas

Contact Info

Product

Resources

About