Sunil Kumar
Title
Cited by
Cited by
Year
Femtosecond carrier dynamics and saturable absorption in graphene suspensions
S Kumar, M Anija, N Kamaraju, KS Vasu, KS Subrahmanyam, AK Sood, ...
Appl. Phys. Lett. 95 (19), 191911-191913, 2009
1652009
Large nonlinear absorption and refraction coefficients of carbon nanotubes estimated from femtosecond -scan measurements
N Kamaraju, S Kumar, AK Sood, S Guha, S Krishnamurthy, CNR Rao
Applied Physics Letters 91 (25), 251103, 2007
692007
Single-pulse CARS based multimodal nonlinear optical microscope for bioimaging
S Kumar, T Kamali, JM Levitte, O Katz, B Hermann, R Werkmeister, ...
Optics Express 23 (10), 13082-13098, 2015
282015
Graphene analogue BCN: femtosecond nonlinear optical susceptibility and hot carrier dynamics
S Kumar, N Kamaraju, KS Vasu, A Nag, AK Sood, CNR Rao
Chem. Phys. Lett. 499 (1-3), 152-157, 2010
282010
Temperature-dependent chirped coherent phonon dynamics in Bi2Te3 using high-intensity femtosecond laser pulses
N Kamaraju, S Kumar, AK Sood
EPL (Europhysics Letters) 92 (4), 47007, 2010
272010
Terahertz spectroscopy of single-walled carbon nanotubes in a polymer film: observation of low-frequency phonons
S Kumar, N Kamaraju, B Karthikeyan, M Tondusson, E Freysz, AK Sood
The Journal of Physical Chemistry C 114 (29), 12446-12450, 2010
182010
Double walled carbon nanotubes as ultrafast optical switches
N Kamaraju, S Kumar, YA Kim, T Hayashi, H Muramatsu, M Endo, ...
Applied Physics Letters 95 (8), 081106, 2009
182009
Ultrafast photoinduced enhancement of nonlinear optical response in 15-atom gold clusters on indium tin oxide conducting film
S Kumar, ES Shibu, T Pradeep, AK Sood
Optics Express 21 (7), 8483-8492, 2013
172013
Ultrafast electron dynamics and cubic optical nonlinearity of freestanding thin film of double walled carbon nanotubes
N Kamaraju, S Kumar, B Karthikeyan, A Moravsky, RO Loutfy, AK Sood
Applied Physics Letters 93 (9), 091903, 2008
162008
Large-amplitude chirped coherent phonons in tellurium mediated by ultrafast photoexcited carrier diffusion
N Kamaraju, S Kumar, M Anija, AK Sood
Physical Review B 82 (19), 195202, 2010
102010
Hybrid single-source online Fourier transform coherent anti-Stokes Raman scattering/optical coherence tomography
T Kamali, B Považay, S Kumar, Y Silberberg, B Hermann, R Werkmeister, ...
Optics Letters 39 (19), 5709-5712, 2014
92014
Tuning ultrafast photoresponse of gold nanorods
S Kumar, M Anija, AK Sood
Plasmonics 8 (3), 1477-1483, 2013
92013
Terahertz Time Domain Spectroscopy to Detect Low‐Frequency Vibrations of Double‐Walled Carbon Nanotubes
S Kumar, N Kamaraju, A Moravsky, RO Loutfy, M Tondusson, E Freysz, ...
European Journal of Inorganic Chemistry 2010 (27), 4363-4366, 2010
92010
Probing ultrafast carrier dynamics and nonlinear absorption and refraction in core-shell silicon nanowires
S Kumar, M Khorasaninejad, MM Adachi, KS Karim, SS Saini, AK Sood
Pramana Journal of Physics (DOI: 10.1007/s12043-012-0337-y) 79 (3), 471-481, 2012
82012
Coherent phonons in pyrochlore titanates A 2 Ti 2 O 7 (A= Dy, Gd, Tb): A phase transition in Dy 2 Ti 2 O 7 at 110 K
N Kamaraju, S Kumar, S Saha, S Singh, R Suryanarayanan, ...
Physical Review B 83 (13), 134104, 2011
82011
Influence of two photon absorption induced free carriers on coherent polariton and phonon generation in ZnTe crystals
N Kamaraju, S Kumar, E Freysz, AK Sood
Journal of Applied Physics 107 (10), 103102, 2010
82010
Direct observation of low frequency confined acoustic phonons in silver nanoparticles Terahertz time domain spectroscopy
S Kumar, N Kamaraju, B Karthikeyan, M Tondusson, E Freysz, AK Sood
Journal of Chemical Physics 133 (1), 014502-014504, 2010
72010
Ultrafast switching time and third order nonlinear coefficients of microwave treated single walled carbon nanotube suspensions
N Kamaraju, S Kumar, B Karthikeyan, B Kakade, VK Pillai, AK Sood
Journal of nanoscience and nanotechnology 9 (9), 5550-5554, 2009
72009
Self-functionalized ultrastable water suspension of luminescent carbon quantum dots
A Singh, PK Mohapatra, D Kalyanasundaram, S Kumar
Materials Chemistry and Physics 225, 23-27, 2019
62019
Signatures of superconducting and pseudogap phases in ultrafast transient reflectivity of Ca(Fe0.927Co0.073)2As2
S Kumar, L Harnagea, S Wurmehl, B Buechner, AK Sood
EPL 105 (4), 47004, 2014
52014
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Articles 1–20