Nonlinear optical response of silicon nanocrystals

Koudoumas, E.; Kokkinaki, Olga; Konstantaki, Maria; Kornilios, N.; Couris, Stelios; Korovin, S. D.; Pustovoĭ, V. I.; Ogluzdin, V. E.

doi:10.1016/j.optmat.2006.11.065

Cited by 14 publications

(11 citation statements)

References 22 publications

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“…This is in agreement with Ref. [27] which shows that Si NPs show nonlinear absorption at the intensity above 20 MW/cm 2 . However, this is in contrast with Ref.…”

Section: Resultssupporting

confidence: 94%

“…Bubble formation is a well known and well studied phenomenon and is also reported in Si NPs in glycerol. 27 Starting of bubble formation in the lower energy range for Si NPs may be due to larger nonlinear absorption in the Si NPs compared to C 60 causing generation of heat in the medium at low energy which gets transferred to the surrounding solvent resulting in bubble formation. Once the bubble formation starts, scattering from bubbles contributes to the optical limiting signal.…”

Section: Resultsmentioning

confidence: 99%

“…In Ref. [27] optical limiting is attributed to nonlinear absorption whereas in Ref. [26] the nonlinear scattering process is shown to be the dominant mechanism.…”

Section: Introductionmentioning

confidence: 99%

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Studies on Optical Limiting Characteristics of Silicon Nanoparticles Synthesized by Laser Ablation

Shukla¹,

Singh²,

Srivastava³

et al. 2012

j. nanosci. nanotech.

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We present synthesis of silicon nanoparticles dispersed in toluene by laser ablation and studies on their optical limiting properties with nanosecond laser pulses at 532 nm. Silicon nanoparticles in toluene show better optical limiting compared to standard optical limiter fullerene C60 in toluene. Optical limiting threshold of silicon nanoparticles is about three times less than that of C60. Detailed studies using Z-scan experiments, angle dependent scattering, intensity dependent transmission and temporal profile measurements indicate that apart from non-linear scattering, nonlinear absorption and nonlinear refraction also contribute to the optical limiting behavior of silicon nanoparticles.

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“…This is in agreement with Ref. [27] which shows that Si NPs show nonlinear absorption at the intensity above 20 MW/cm 2 . However, this is in contrast with Ref.…”

Section: Resultssupporting

confidence: 94%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Studies on Optical Limiting Characteristics of Silicon Nanoparticles Synthesized by Laser Ablation

Shukla¹,

Singh²,

Srivastava³

et al. 2012

j. nanosci. nanotech.

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show abstract

“…Various studies have showed that silicon nanoparticles in various forms and embedded in different matrices exhibit considerable optical nonlinearities. There are several studies in the last years concerning the nonlinear optical response of silicon nanoparticles in suspensions [1][2][3][4], deposited on substrates [5][6][7][8][9][10] or embedded in silica matrix and porous silicon [11][12][13][14] and an enhancement in the third order susceptibility and the change in refractive index have been observed. However, there is need for a more specific study on the thermal nonlinear optical properties of the silicon nanocrystals.…”

Section: Introductionmentioning

confidence: 99%

Solvent dependent optical limiting and thermo-optical response of silicon nanoparticle colloids

Karimzadeh

Mansour

2013

Optik

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“…Although experiments and their corresponding empirical data based theories with an emphasis in the interaction between femtosecond laser and silicon material are abundant [16][17][18][19], publications on the fundamentals addressing the thermomechanical response of silicon subject to femtosecond laser interrogation are rare. A self-consistent model, usually named the two-temperature model, or 2TM, that was based on the relaxation-time approximation of the Boltzmann equation was among the first to be proposed [20,21].…”

Section: Introductionmentioning

confidence: 99%

Elasto-Viscoplastic Response of Silicon to Femtosecond Laser Heating at Elevated Temperature

Suh

2011

Journal of Thermal Stresses

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The elasto-viscoplastodynamics of single-crystalline silicon in response to femtosecond laser pulsing at elevated temperature is studied. Hyperbolic energy transport dynamics is considered in conjunction with the Haasen-Sumino constitutive law to explore the thermo-elasto-visco-plastic response of the silicon material subjected to ultrafast optical heating. A computational scheme with staggered-grids is developed to time-integrate the coupled thermal-mechanical responses of silicon wafer at annealing temperatures up to 1,100 K. Non-thermal melting fluence threshold is examined favorably against published physical data. The elasto-viscoplastic response at high annealing temperature is characterized by thermal stress waves that propagate with increased oscillation amplitude and modified frequency spectrum. It is shown that the induced transverse and longitudinal displacements along with the normal stress components all establish well-defined relations with temperatures, suggesting that they may be utilized for the thermometric profiling of silicon wafers undergoing Rapid Thermal Processing (RTP) with desired thermal resolution.

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Nonlinear optical response of silicon nanocrystals

Cited by 14 publications

References 22 publications

Studies on Optical Limiting Characteristics of Silicon Nanoparticles Synthesized by Laser Ablation

Studies on Optical Limiting Characteristics of Silicon Nanoparticles Synthesized by Laser Ablation

Solvent dependent optical limiting and thermo-optical response of silicon nanoparticle colloids

Elasto-Viscoplastic Response of Silicon to Femtosecond Laser Heating at Elevated Temperature

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