Optical limiting in cobalt-doped polyvinylpyrrolidone

Ganeev, R. A.; Ryasnyansky, A.I.; Kodirov, M. K.; Kamalov, Sh. R.; Li, V.A.; Tugushev, R. I.; Usmanov, T.

doi:10.1007/s003400100753

Cited by 29 publications

(4 citation statements)

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“…Optical power limiting is an area of growing interest due to applications such as eye and sensor protection against intense light [2,35]. The nonlinear optical process leading to optical power limiting includes two-photon absorption, free carrier absorption, reverse saturable absorption and nonlinear scattering.…”

Section: Optical Power Limiting Studiesmentioning

confidence: 99%

3,3′-Benzene-1,4-diylbis[1-(substituted)phenylprop-2-en-1-one] derivatives: A new class of materials for third-order nonlinear optical applications

Poornesh

Ravi

Umesh

et al. 2010

Optics Communications

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Section: Optical Power Limiting Studiesmentioning

confidence: 99%

3,3′-Benzene-1,4-diylbis[1-(substituted)phenylprop-2-en-1-one] derivatives: A new class of materials for third-order nonlinear optical applications

Poornesh

Ravi

Umesh

et al. 2010

Optics Communications

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“…The relative uncertainty in χ (3) results is within the limits of 30%. It is worth noting that the obtained thirdorder susceptibility χ (3) of the Au/PVP film is comparable to or higher than that of the organometallic complexes reported as good nonlinear optical materials [15][16][17]. The large value of χ (3) in the composite films could be attributed to both the large optical nonlinearities of colloidal Au nanoparticles and the nonlinear optical effect of PVP matrix.…”

Section: Resultsmentioning

confidence: 52%

Picosecond nonlinear optical responses of Au/PVP composite films

Shen

Cheng

Lü

et al. 2005

J. Phys. D: Appl. Phys.

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Nonlinear optical properties of colloidal Au and poly(vinylpyrrolidone) (PVP) composite films were investigated using the Z-scan technique with 25 ps pulses at 532 nm near the surface plasmon resonance frequency of Au nanoparticles. Experimental results show large optical nonlinearities of the composite films with the real and imaginary parts of the third-order nonlinear optical susceptibility χ (3) being 4.7 × 10 −10 esu and 2.5 × 10 −10 esu, respectively. The obtained χ (3) value of Au/PVP composite films is comparable or higher than that of the organometallic complexes reported. Furthermore, a strong optical limiting response was observed and a possible application of the composite films as an optical limiter of picosecond laser pulses was discussed.

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“…This result answers one of the questions posed above: Under strongly non-paraxial conditions, frequency-tripled photons are not generated by a simple FWM process. In the paraxial regime, dependences of the frequency-tripled photon number on the pump power with orders ranging from 3.5 to 5 have been reported [17][18][19][20][21][22][23][24]. Possible explanations for this fifth-order dependence include a SWM process [18,23,24] and FWM with phase matching achieved by by a Kerr effect [17,20,22].…”

Section: B Experimental Resultsmentioning

confidence: 99%

Nonlinear optics with full three-dimensional illumination

Penjweini

Weber

Sondermann

et al. 2019

Optica

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We investigate the nonlinear optical process of third-harmonic generation in the thus far unexplored regime of focusing the pump light from a full solid angle, where the nonlinear process is dominantly driven by a standing dipole-wave. We elucidate the influence of the focal volume and the pump intensity on the number of frequency-tripled photons by varying the solid angle from which the pump light is focused, finding good agreement between the experiments and numerical calculations. As a consequence of focusing the pump light to volumes much smaller than a wavelength cubed the Gouy phase does not limit the yield of frequency-converted photons. This is in stark contrast to the paraxial regime. We believe that our findings are generic to many other nonlinear optical processes when the pump light is focused from a full solid angle. arXiv:1809.10988v2 [physics.optics]

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Optical limiting in cobalt-doped polyvinylpyrrolidone

Cited by 29 publications

References 0 publications

3,3′-Benzene-1,4-diylbis[1-(substituted)phenylprop-2-en-1-one] derivatives: A new class of materials for third-order nonlinear optical applications

3,3′-Benzene-1,4-diylbis[1-(substituted)phenylprop-2-en-1-one] derivatives: A new class of materials for third-order nonlinear optical applications

Picosecond nonlinear optical responses of Au/PVP composite films

Nonlinear optics with full three-dimensional illumination

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