Ultrafast optical switching properties of single-wall carbon nanotube polymer composites at 1.55 μm

Chen, Y.-C.; Raravikar, Nachiket; Schadler, Linda S.; Ajayan, Pulickel M.; Zhao, Yiping; Lu, T.‐M.; Wang, G.-C.; Zhang, X.-C.

doi:10.1063/1.1498007

Cited by 416 publications

(164 citation statements)

References 19 publications

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“…They found that MWNT/PmPV composite showed a strong nonlinear signal, which is very applicable in the area of high performance nonlinear optical devices. Chen et al [117] reported that SWNT/polymer composites, especially SWNT/PI composite, not only had an optical decay time of less than 1 ps, but also a high third-order nonlinear polarizability, which makes the composite a promising material for high-quality subpicosecond all-optical switches. A few papers have studied the electromagnetic and microwave absorption properties of polymer composites reinforced with CNTs.…”

Section: Other Functional Properties and Application Of Cnt/polymer Cmentioning

confidence: 99%

The present status and key problems of carbon nanotube based polymer composites

Du¹,

Bai²,

Cheng³

2007

Express Polym. Lett.

419

250

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Abstract. The state-of-art and key problems of carbon nanotube (CNT) based polymer composites (CNT/polymer composites) including CNT/polymer structural composites and CNT/polymer functional composites are reviewed. Based on the results reported up to now, CNTs can be an effective reinforcement for polymer matrices, and the tensile strength and elastic modulus of CNT/polymer composites can reach as high as 3600 MPa and 80 GPa, respectively. CNT/polymer composites are also promising functional composite materials with improved electrical and thermal conductivity, etc. Due to their multi-functional properties, CNT/polymer composites are expected to be used as low weight structural materials, optical devices, thermal interface materials, electric components, electromagnetic absorption materials, etc. However, the full potential of CNT/polymer composites still remains to be realized. A few key problems, such as how to prepare structurecontrollable CNTs with high purity and consistently dependable high performance, how to break up entangled or bundled CNTs and then uniformly disperse and align them within a polymer matrix, how to improve the load transfer from matrix to CNT reinforcement, etc, still exist and need to be solved in order to realize the wide applications of these advanced composites.

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Section: Other Functional Properties and Application Of Cnt/polymer Cmentioning

confidence: 99%

The present status and key problems of carbon nanotube based polymer composites

Du¹,

Bai²,

Cheng³

2007

Express Polym. Lett.

419

250

View full text Add to dashboard Cite

show abstract

“…2 The use of nanotube suspensions results in poorly resolved data, because a large background signal inevitably exists and an inhomogeneously deposited film and dispersed composite make the absorption and reflection measurements in the same sample difficult. These drawbacks could lead to a misunderstanding of the intrinsic optical properties of SWNTs.…”

mentioning

confidence: 99%

“…Very recently, intensive studies on the nonlinear optical properties of SWNTs have been carried out theoretically 1 and experimentally. [2][3][4] It is believed that SWNTs can be used in the fabrication of optical limiting and switching devices due to their nonlinear optical properties upon absorption [4][5][6] and its fast decay time of less than 1 picoseconds. 2,[7][8][9] These nonlinear properties are related to the third-order nonlinear susceptibility χ (3) , which is considered to be a complex quantity: 10 ( ) ( ) ( 3…”

mentioning

confidence: 99%

Nonlinear optical absorption and reflection of single wall carbon nanotube thin films by Z-scan technique

Shimamoto

Sakurai

Itoh

et al. 2008

Applied Physics Letters

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Both the nonlinear optical transmission and reflection characteristics of HiPco-based single wall carbon nanotube (SWNT) thin films are studied by using the Z-scan method with femtosecond laser pulses at a wavelength of 1.46 μm. The nonlinear absorption coefficient and nonlinear refractive index are obtained as (5.4 ± 2.0) × 10 −7 cm/W and (1.1 ± 0.5) × 10 −11 cm 2 /W, respectively, which are considerably greater than those of other optical materials. This large optical nonlinearity is ascribed to (a) homogeneously deposited thin nanotube film on optically transparent barium fluoride, (b) just-resonant excitation condition, and (c) intrinsic saturable absorption feature of SWNTs.

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“…Recent reports announcing ultrafast saturable absorption in single-walled carbon nanotubes (SWCNTs) motivated development of a ultrafast passive mode-locker based on SWCNTs [5,6]. After the first demonstration of SWCNT-SA mode-locking in a fiber laser that can tolerate large insertion losses [7], SWCNT-SAs also have been successfully applied to passively mode-locked bulk solid-state lasers, such as Yb compared to former passive devices including SESAMs.…”

Section: Introductionmentioning

confidence: 99%

Solid-State Laser Mode-Locking Near 1.25 μm Employing a Carbon Nanotube Saturable Absorber Mirror

Cho

Choi

Kim

et al. 2011

Journal of the Optical Society of Korea

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We demonstrate passive mode-locking of a Cr:forsterite laser with a single-walled carbon nanotube saturable absorber mirror (SWCNT-SAM). Without compensation of intra-cavity dispersion, the self-mode-locked laser generates 11.7 ps pulses at a repetition rate of 86 MHz. The dispersion-compensated laser yields ultrashort pulses as short as 80 fs near 1.25 µm at 78 MHz with average output powers up to 295 mW, representing the highest power ever reported for mode-locked solid-state lasers based on saturable absorption of SWCNTs in this spectral region.

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Ultrafast optical switching properties of single-wall carbon nanotube polymer composites at 1.55 μm

Cited by 416 publications

References 19 publications

The present status and key problems of carbon nanotube based polymer composites

The present status and key problems of carbon nanotube based polymer composites

Nonlinear optical absorption and reflection of single wall carbon nanotube thin films by Z-scan technique

Solid-State Laser Mode-Locking Near 1.25 μm Employing a Carbon Nanotube Saturable Absorber Mirror

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