Incident light polarization dependence of terahertz emission spectrum of crystalline 4-N,N-dimethylamino-4′-N′-methyl-stilbazolium tosylate

Kuroyanagi, Kazuyoshi; Yanagi, Kazuhiro; Sugita, Atsushi; Hashimoto, Hideki; Takahashi, H.; Aoshima, Shin−ichiro; Tsuchiya, Yutaka

doi:10.1063/1.2335776

Cited by 12 publications

(3 citation statements)

References 12 publications

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“…THz-wave generation by optical rectification in organic crystals has been first demonstrated using DAST in 1992 [133], followed by investigations in many different groups, initially only in DAST (see, e.g., Refs. [93,112,120,130,143,147,[153][154][155][156][157][158][159]), and later extended to other organic crystals, such as DSTMS (see, e.g., Refs. [72,76,79,81,93,94,160,161]), OH1 (see, e.g., Refs.…”

Section: Thz Sources Based On Optical Rectificationmentioning

confidence: 99%

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: Thz Sources Based On Optical Rectificationmentioning

confidence: 99%

Organic Crystals for THz Photonics

et al. 2019

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“…It is known that the BNA crystal has a strong absorption at 2.2 THz. 24) Since we used the BNA crystal for both THz emission and detection, this absorption causes an inevitable dip at 2.2 THz in the frequency spectrum. In addition, a significant finding here is that we can clearly detect a highfrequency signal when using the BNA crystal as a detector.…”

Section: Thz Detectionmentioning

confidence: 99%

All Organic Terahertz Electromagnetic Wave Emission and Detection Using Highly Purified N-Benzyl-2-methyl-4-nitroaniline Crystals

Kuroyanagi

Ito

Hashimoto

et al. 2006

jjap

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We studied terahertz (THz) electromagnetic wave emission and detection using highly purified N-benzyl-2-methyl-4-nitroaniline (BNA) crystals. In THz emission experiments, we compared the efficiencies of THz emission via optical rectification for BNA, ZnTe, and GaP crystals, and confirmed that the BNA crystal is the most efficient THz emitter among these three crystals within the frequency range limits for observation. In the THz detection experiment, we also compared the modulation efficiencies of the BNA and ZnTe crystals, and found that the ZnTe crystal has a higher efficiency than the BNA crystal. However, the BNA crystal has a higher efficiency than the ZnTe crystal in high-frequency regions. Since the BNA crystal is suitable for detecting a high-frequency region even when using thick crystals, it is expected that the BNA crystal as a THz detector will be easy to prepare and handle.

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“…Ultrashort electromagnetic pulses in the range of 0.1−10 THz, so-called “T-rays” have become important for nondestructive sensing and imaging of various chemical- and biomaterials, spectroscopy, and other interdisciplinary applications. − Among various THz-wave generation methods, − optical rectification of femtosecond optical pulses using nonlinear optical crystals, for example, inorganic ZnTe crystals, is commonly used for generation of broad-bandwidth THz waves with a high signal-to-noise ratio . Compared to their inorganic counterparts, organic electro-optic crystals exhibit a large second-order optical nonlinearity and low dielectric constants and can be grown relatively easy. , Up to now THz-wave generation schemes in organic crystals ,,− are most often performed in ionic stilbazolium salts, N,N -dimethylamino- N ′-methylstilbazolium p -toluenesulfonate (DAST) ,, and 4- N , N -dimethylamino-4′- N ′-methyl-stilbazolium 2,4,6-trimethylbenzenesulfonate (DSTMS) . Ionic stilbazolium salts DAST and DSTMS are interesting because of their high generation efficiency, but have some limitations due to their strong THz absorption band at around 1 THz and solubility in water.…”

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confidence: 99%

Large-Size Pyrrolidine-Based Polyene Single Crystals Suitable for Terahertz Wave Generation

Seo¹,

Choi²,

Jazbinšek

et al. 2009

Crystal Growth & Design

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We report on the growth of large pyrrolidine-based polyene single crystals from methyl ethyl ketone (MEK) solutions for nonlinear optical applications. The polyene crystals grown exhibit a suitable morphology and surface roughness and good optical quality. We successfully demonstrated THz wave generation with as-grown polyene crystals. Although the crystal cut was not optimized and phase-matching conditions were not fulfilled, we achieved a similar or higher THz generation efficiency compared to the well-known inorganic ZnTe emitter crystals.

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Incident light polarization dependence of terahertz emission spectrum of crystalline 4-N,N-dimethylamino-4′-N′-methyl-stilbazolium tosylate

Cited by 12 publications

References 12 publications

Organic Crystals for THz Photonics

Organic Crystals for THz Photonics

All Organic Terahertz Electromagnetic Wave Emission and Detection Using Highly Purified N-Benzyl-2-methyl-4-nitroaniline Crystals

Large-Size Pyrrolidine-Based Polyene Single Crystals Suitable for Terahertz Wave Generation

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