Ultrafast Coherent Anti-Stokes Raman spectroscopic studies of nitro/nitrogen rich aryl-tetrazole derivatives

Katturi, Naga Krishnakanth; G, Sarang Dev; Kommu, Nagarjuna; Podagatlapalli, G. Krishna; Soma, Venugopal Rao

doi:10.1016/j.cplett.2020.137843

Cited by 7 publications

(2 citation statements)

References 44 publications

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“…8 Vibrational dynamics obtained by CARS can help understand the reaction mechanisms in various materials, such as energetic materials. [9][10][11] In addition to the studies of vibrational dynamics, CARS can also be used for imaging and diagnostics. As a kind of label-free imaging technology, CARS microscopy has been widely used in biology and medicine.…”

Section: Introductionmentioning

confidence: 99%

Femtosecond coherent anti-Stokes Raman spectroscopy study of vibrational dynamics of liquid chloroform

Song

Zeng

et al. 2022

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Femtosecond coherent anti-Stokes Raman spectroscopy study of vibrational dynamics of liquid chloroform

Song

Zeng

et al. 2022

RSC Adv.

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“…The use of strong optical pulses in far-to-mid infrared (IR) range (0.1–100 THz) with optical power ranging from milli-Watts to several Watts has emerged as a powerful tool to study material properties in solid-state and condensed matter systems under nonequilibrium conditions. − In particular, in energetic materials where phonons are the primary carriers of heat, ultrafast laser heating and spectroscopy have enabled the investigation of shock-induced chemistry − and subpicosecond vibrational energy-transfer dynamics − to form a more complete understanding of the shock-to-initiation process.…”

Section: Introductionmentioning

confidence: 99%

Selective Phonon Stimulation Mechanism to Tune Thermal Transport

Kumar

Chung

2022

ACS Omega

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In this paper, we determine the degree to which changes can be induced in the equilibrium thermal diffusivity and conductivity of a material via a selective nonequilibrium infrared stimulation mechanism for phonons. Using the molecular crystal RDX, we use detailed momentum-dependent coupling information across the entire Brillouin zone and the phonon gas model to show that stimulating selected modes in the spectrum of a target material can induce substantial changes in the overall thermal transport properties. Specifically in the case of RDX, stimulating modes at ∼22.74 cm –1 over a linewidth of 1 cm –1 can lead to enhanced scattering rates that reduce the overall thermal diffusivity and conductivity by 15.58 and 12.46%, respectively, from their equilibrium values. Due to the rich spectral content in the materials, however, stimulating modes near ∼1140.67 cm –1 over a similar bandwidth can produce an increase in the thermal diffusivity and conductivity by 55.73 and 144.07%, respectively. The large changes suggest a mechanism to evoke substantially modulated thermal transport properties through light–matter interaction.

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Time-Resolved Femtosecond Coherent Anti-Stokes Raman Spectroscopic Studies of Picric Acid and Ammonium Nitrate

Krishnakanth

Rao

2021

Springer Proceedings in Physics

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Ultrafast Coherent Anti-Stokes Raman spectroscopic studies of nitro/nitrogen rich aryl-tetrazole derivatives

Cited by 7 publications

References 44 publications

Femtosecond coherent anti-Stokes Raman spectroscopy study of vibrational dynamics of liquid chloroform

Femtosecond coherent anti-Stokes Raman spectroscopy study of vibrational dynamics of liquid chloroform

Selective Phonon Stimulation Mechanism to Tune Thermal Transport

Time-Resolved Femtosecond Coherent Anti-Stokes Raman Spectroscopic Studies of Picric Acid and Ammonium Nitrate

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