Terahertz polarization pulse shaping with arbitrary field control

Sato, Masa‐aki; Higuchi, Tohru; Kanda, Natsuki; Konishi, Kuniaki; Yoshioka, Kosuke; Suzuki, Takayuki; Misawa, Kazuhiko; Kuwata‐Gonokami, Makoto

doi:10.1038/nphoton.2013.213

Cited by 139 publications

(94 citation statements)

References 50 publications

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“…In this work, the THz ellipticity was controlled by adjusting both the relative time delay in the nonlinear crystal of two exiting pulses delivered by two lasers, and the polarization between two lasers. A great improvement was demonstrated by the team of M. Kuwata-Gonokami in Japan [29], who employed a single femtosecond laser and derived the relation ψ Ω = -2ψ established in the first part of this paper. In [25], the [111] zinc blende crystal was GaP, and the detection of the THz signal was based on sum frequency generation.…”

Section: State Of the Art In Thz Or With Zinc-blende [111] Crystalsmentioning

confidence: 93%

Second order nonlinear optical processes in [111] cubic crystals for terahertz optoelectronics

Gaborit¹,

Sanjuan²,

Coutaz³

2018

physics

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In this paper, we give an overview of emission and detection of terahertz electromagnetic pulses using, respectively, optical rectification and electro-optic effect in [111] zinc blende crystals. This crystal orientation allows us to generate and read any polarization state of the THz beam only by controlling the polarization state of the laser beam that excites or probes the emitting and receiving crystals. This technique is very useful for polarimetric terahertz spectroscopic studies.

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Section: State Of the Art In Thz Or With Zinc-blende [111] Crystalsmentioning

confidence: 93%

Second order nonlinear optical processes in [111] cubic crystals for terahertz optoelectronics

Gaborit¹,

Sanjuan²,

Coutaz³

2018

physics

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“…Of course, the control given by this additional degree of freedom is exploited not just to provide three-dimensional experience during watching films in movie theaters, but also in the different areas of femtosecond sciences. Using pulses with more complex polarization states than linear can yield polarization-formed terahertz fields [64], or can help to reach optimal control on the irradiated molecules or other materials, which is often mentioned as a way of coherent control [65][66][67][68][69]. On a similar basis, polarization control showed to be advantageous in pump-probe measurements of two-dimensional spectroscopy techniques [70,71].…”

Section: Applications Of Ultrashort and Few-cycle Wave Formsmentioning

confidence: 99%

“…While in the majority of laser applications the polarization state is not considered -because the generated pulsed light is usually linearly polarized and can be treated theoretically as a scalar -, more and more studies are published where pulsed waves with complex polarization states are used [41,[64][65][66][67][68][69][70][71][72].…”

Section: Polarizationmentioning

confidence: 99%

“…Other solutions, such as acousto-optical pulse shapers or plasmonic-crystal structures, have been proposed as well for polarization-state control [121,122]. Polarization shaping in other wavelength regimes is also possible, for example, for pulses generated in the mid-infrared [70], terahertz [64,123] or ultraviolet [124]. So, it is an important issue to discuss how the polarization state of short pulses can be described, and how they might change during the propagation or focusing of the pulsed beam.…”

Section: Polarizationmentioning

confidence: 99%

“…It can be shown that with the above assumption of terminating the series at first order, the temporal variation of the propagated electric field in point P (pointed by r) at local time 64) with the complex envelope approximated bỹ…”

Section: Pulsed Beam Propagationmentioning

confidence: 99%

See 2 more Smart Citations

Phase and polarization changes of pulsed Gaussian beams during focusing and propagation

Major¹

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Polarized THz Emission from In‐Plane Dipoles in Monolayer Tungsten Disulfide by Linear and Circular Optical Rectification

Zhang

Huang

Zhu

et al. 2019

Advanced Optical Materials

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Recent advances in the development of polarized terahertz (THz) emission from nanomaterials have not only opened up a new “TeraNano” interdiscipline but also provided a new tool for nonlinear optical process research. Herein, THz radiation mechanism of monolayer tungsten disulfide (WS2) is first investigated by both linear and circular polarization laser excitations at room temperature. The results reveal that polarized THz emission is dominated by the optical rectification based on in‐plane nonlinear dipoles, which is totally different from that of bulk WS2. The mechanism is verified by the azimuthal angle and pump polarization angle dependence of THz emission in both experiment and theory. Furthermore, controllably elliptically polarized THz emission is observed with the maximum ellipticity of ≈0.52 based on nonresonant nonlinear process under the circularly polarized excitation. A clear understanding of THz radiation mechanism of 2D materials will facilitate further design, optimization, and polarization control of integrable 2D THz optoelectronics.

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Terahertz polarization pulse shaping with arbitrary field control

Cited by 139 publications

References 50 publications

Second order nonlinear optical processes in [111] cubic crystals for terahertz optoelectronics

Second order nonlinear optical processes in [111] cubic crystals for terahertz optoelectronics

Phase and polarization changes of pulsed Gaussian beams during focusing and propagation

Polarized THz Emission from In‐Plane Dipoles in Monolayer Tungsten Disulfide by Linear and Circular Optical Rectification

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