Third-Order Nonlinear Optics in Polar Materials

Bosshard, Ch.

doi:10.1007/978-3-540-49713-4_2

Cited by 10 publications

(9 citation statements)

References 192 publications

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“…Note that, in this review, we use, unless explicitly stated, SI units and the above defined power series expansion, which is the same as in Ref. [3]. Note that several different formulations are used for the above equation in both SI and cgs unit systems, so care must be taken when comparing the results from different sources [3][4][5].…”

Section: Nlo Effects In Organic Materialsmentioning

confidence: 99%

“…[3]. Note that several different formulations are used for the above equation in both SI and cgs unit systems, so care must be taken when comparing the results from different sources [3][4][5]. While all molecules exhibit α ij and γ ijkl , the first hyperpolarizability β ijk is responsible for the asymmetric response to an external field and is only possible in asymmetric molecules.…”

Section: Nlo Effects In Organic Materialsmentioning

confidence: 99%

“…The macroscopic NLO material response is in general (also for inorganic materials) described using an analogous power series for the induced material polarization P as a function of the applied electric field E P i = 0 χ (1) ij E j + 0 χ (2) ijk E j E k + 0 χ (3) ijkl E j E k E l + . .…”

Section: A D π-Bridgementioning

confidence: 99%

“…. , (2) where χ (1) is the linear susceptibility, while χ (2) and χ (3) are the nonlinear susceptibilities of the second and the third order, respectively. The susceptibility tensor coefficients are all dependent on the frequency f (or the angular frequency ω = 2π f ) of the involved electric fields E. As seen in Equation 2, the NLO effects of the second-order, which are of interest in this review, allow interaction of two electric fields E(ω 1 ) and E(ω 2 ) to induce a macroscopic polarization at a combination of their frequencies ω 3 , which is the source of the generated electric field E(ω 3 ).…”

Section: A D π-Bridgementioning

confidence: 99%

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Organic Crystals for THz Photonics

et al. 2019

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Organic crystals with second-order optical nonlinearity feature very high and ultra-fast optical nonlinearities and are therefore attractive for various photonics applications. During the last decade, they have been found particularly attractive for terahertz (THz) photonics. This is mainly due to the very intense and ultra-broadband THz-wave generation possible with these crystals. We review recent progress and challenges in the development of organic crystalline materials for THz-wave generation and detection applications. We discuss their structure, intrinsic properties, and advantages compared to inorganic alternatives. The characteristic properties of the most widely employed organic crystals at present, such as DAST, DSTMS, OH1, HMQ-TMS, and BNA are analyzed and compared. We summarize the most important principles for THz-wave generation and detection, as well as organic THz-system configurations based on either difference-frequency generation or optical rectification. In addition, we give state-of-the-art examples of very intense and ultra-broadband THz systems that rely on organic crystals. Finally, we present some recent breakthrough demonstrations in nonlinear THz photonics enabled by very intense organic crystalline THz sources, as well as examples of THz spectroscopy and THz imaging using organic crystals as THz sources for various scientific and technological applications.

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Section: Nlo Effects In Organic Materialsmentioning

confidence: 99%

Section: Nlo Effects In Organic Materialsmentioning

confidence: 99%

Section: A D π-Bridgementioning

confidence: 99%

Section: A D π-Bridgementioning

confidence: 99%

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Organic Crystals for THz Photonics

et al. 2019

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“…Moreover, azo dyes can be readily prepared with a wide range of donor and acceptor groups in order to change their absorption band according to demands and lead to higher optical activity [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and investigation of nonlinear optical properties of Para Red: Z-scan technique and quantum mechanical calculations

Mostaghni

Abed

2018

Materials Science-Poland

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In this study, we present a systematic study of linear and nonlinear optical properties of Para Red with the aim of Z-scan technique and quantum mechanical calculations. The Z-scan experiments were performed using a 532 nm Nd: YAG (SHG) CW laser beam. Para Red exhibited a strong nonlinear refractive index, nonlinear absorption coefficient and third-order nonlinear susceptibility 3.487 × 10−6 cm2/W, 2.341 × 10−1cm/W and 2.157 × 10−4 esu, respectively. Also, quantum chemical analysis was used for the calculation of the dipole moment μ, dipole polarizability α, anisotropy of polarizability Δα and molecular hyperpolarizabilities (β,γ). The results revealed that Para Red has large first and second hyperpolarizabilities. However, from the obtained results, it was found that Para Red can be a promising material for applications in the development of non-linear optical materials.

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Electrooptical Applications

Dalton

2010

Encyclopedia of Polymer Science and Technology

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An overview of organic electronic electrooptic materials and the applications of those materials in prototype devices is given. This overview is set in the context of competing technologies. Quantum and statistical mechanical theoretical methods have recently provided significantly improved guidance in understanding organic electrooptic material structure/function relationships, leading to the systematic increase in electrooptic activity of such materials to values 15 times larger than the current commercial standard lithium niobate. In addition to discussion of electro‐optic activity, auxiliary properties of bandwidth, optical loss, thermal stability, photochemical stability, mechanical properties, and processability are discussed. Since the year 2000, substantial advances have been achieved in the processing of organic electrooptic materials and the integration with disparate materials, e.g., silicon photonics. For example, cycloaddition reactions have been employed to dramatically improve the thermal and photochemical stability of organic electrooptic materials. Integration of organic electrooptic materials with silicon photonic device structures have lead to new performance records, device concepts, and paves the way for the chipscale intergration of electronics and photonics. The fabrication of conformal and flexible devices have also been demonstrated with organic electrooptic materials and such materials have been amenable to production of complex photonic circuitry by nanoimprint/soft lithography techniques.

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Third-Order Nonlinear Optics in Polar Materials

Cited by 10 publications

References 192 publications

Organic Crystals for THz Photonics

Organic Crystals for THz Photonics

Synthesis and investigation of nonlinear optical properties of Para Red: Z-scan technique and quantum mechanical calculations

Electrooptical Applications

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