Femtosecond valley polarization and topological resonances in transition metal dichalcogenides

Motlagh, S. Azar Oliaei; Wu, James Swi‐Bea; Apalkov, Vadym; Stockman, Mark I.

doi:10.1103/physrevb.98.081406

Cited by 47 publications

(22 citation statements)

References 62 publications

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“…Searching for a possible interpretation of the results, Mark developed his revolutionary concept and basic theory for the semimetallization of solids in strong fields. , This ground-breaking idea is a cornerstone of a field now known as petahertz optoelectronics . In recent years, he has extended his work to strong-field interactions with other types of solids, including 2D materials such as graphene and 2D transition metal dichalcogenides (TMDs) . As an example, he introduced strong-field valleytronics in TMDs and the use of such phenomena for information storage and processing in petahertz optoelectronics .…”

Section: Attosecond Nanophysics and Petahertz Optoelectronicsmentioning

confidence: 99%

“…In recent years, he has extended his work to strong-field interactions with other types of solids, including 2D materials such as graphene and 2D transition metal dichalcogenides (TMDs) . As an example, he introduced strong-field valleytronics in TMDs and the use of such phenomena for information storage and processing in petahertz optoelectronics . His pioneering work is stimulating a wealth of strong-field studies on solids, including probing their response via high-harmonic spectroscopy .…”

Section: Attosecond Nanophysics and Petahertz Optoelectronicsmentioning

confidence: 99%

“…77 As an example, he introduced strong-field valleytronics in TMDs and the use of such phenomena for information storage and processing in petahertz optoelectronics. 77 His pioneering work is stimulating a wealth of strong-field studies on solids, including probing their response via high-harmonic spectroscopy. 78 While petahertz optoelectronics is in its infancy, it holds the promise to revolutionize electronics by increasing information processing frequencies to the ultimate limit, given only by the speed of light.…”

Section: ■ Active Plasmonicsmentioning

confidence: 99%

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Mark Stockman: Evangelist for Plasmonics

Aizpurua¹,

Atwater²,

Baumberg³

et al. 2021

ACS Photonics

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Mark Stockman was a founding member and evangelist for the plasmonics field for most of his creative life. He never sought recognition, but fame came to him in a different way. He will be dearly remembered by colleagues and friends as one of the most influential and creative contributors to the science of light from our generation.■ A SHORT BIOGRAPHY OF PROFESSOR MARK STOCKMAN Mark Stockman was born on the 21st of July 1947 in Kharkov, a major cultural, scientific, educational, and industrial center in the mainly Russian-speaking northern Ukraine, a part of the Soviet Union at that point in time. His father, Ilya Stockman, was a mining engineer by training, who fought in World War II and became a highly decorated enlisted officer. After the war, Ilya Stockman embraced an academic career and eventually became a Professor at the Dnepropetrovsk Higher Mining School. He was from a Cantonist family descended from Jewish conscripts to the Russian Imperial army, who were educated in special "canton schools" for future military service.Mark was an avid reader at school, and it was the undergraduate textbook on applied mathematics by Yakov Zeldovich, the famous theoretical physicist, who played a crucial role in the development of the Soviet Union's nuclear bomb project that turned his attention to physics in a serious way.Following successful participation in the national school physics competition, Mark was accepted into a highly selective institution for gifted children in Kiev known as the Republican Specialized Physics and Mathematics Boarding School. The school was established by the father of Soviet cybernetics Victor Glushkov. Mark left his family in Dnepropetrovsk and moved to Kiev as a boarding student. Upon graduating from the school, he successfully applied to the Physics Department of Kiev State University, aided by his reputation as a top student and links between the school and university academics: for a Jewish boy with no family connections, to enter this prestigious university in the Ukrainian capital was a formidable challenge in the Soviet Union. However, after his second year, feeling uncomfortable at the University in Kiev, Mark decided to leave the blessed city for Novosibirsk State University far away in Siberia where a more cosmopolitan atmosphere prevailed at that time. He studied for a diploma in the Institute of Nuclear Physics where after graduation he became a researcher registered as a Ph.D. student. He defended a dissertation on collective phenomena in nuclei under the supervision of Russian theoretical physicists Spartak Belyaev and Vladimir Zelelevinsky. While a Ph.D. candidate, Mark met and married Branislava Mezger, a junior research scientist in biomedicine, and in 1978 they had a son, Dmitry. After a few years in the Institute of Nuclear Physics, Mark became disillusioned with nuclear physics, where research projects involved large groups and implied very long experimental cycles. He moved to the neighboring Institute of Automation and Electrometry in Novosibirsk to work on the fundam...

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Section: Attosecond Nanophysics and Petahertz Optoelectronicsmentioning

confidence: 99%

Section: Attosecond Nanophysics and Petahertz Optoelectronicsmentioning

confidence: 99%

Section: ■ Active Plasmonicsmentioning

confidence: 99%

See 1 more Smart Citation

Mark Stockman: Evangelist for Plasmonics

Aizpurua¹,

Atwater²,

Baumberg³

et al. 2021

ACS Photonics

View full text Add to dashboard Cite

show abstract

“…The availability of ultrashort laser pulses with the duration of a few femtoseconds provides effective tools to manipulate and study the electron dynamics in solids at ultrafast time scale with high temporal resolution [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Among solids, two dimensional (2D) crystalline materials exhibit unique properties due to the confinement of electron dynamics to a plane [21].…”

Section: Introductionmentioning

confidence: 99%

Ultrafast optical currents in gapped graphene

Motlagh

Nematollahi

Mitra

et al. 2019

J. Phys.: Condens. Matter

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We theoretically study the interaction of ultrashort optical pulses with gapped graphene. Such a strong pulse results in a finite conduction band population and a corresponding electric current, both during and after the pulse. Since gapped graphene has broken inversion symmetry, it has an axial symmetry about the y -axis but not about the x-axis. We show that, in this case, if the linear pulse is polarized along the x-axis, the rectified electric current is generated in the y direction. At the same time, the conduction band population distribution in the reciprocal space is symmetric about the x-axis. Thus, the rectified current in gapped graphene has an inter-band origin, while the intra-band contribution to the rectified current is zero.

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“…On the one hand, femtosecond control of the phase difference between the two valleys, i.e., valley coherence, has been achieved using the optical Stark effect 12 . On the other hand, femtosecond valley polarization, i.e., inducing population at K or K , has been achieved using single-cycle pulses 8,10 , strong THz streaking fields 13 , and strong tailored light fields 14 . In these methods, however, ultrafast switching of valley polarization, i.e., moving population from one valley to the other, is only possible while the material is dressed by the laser field.…”

mentioning

confidence: 99%

All-optical valley switch and clock of electronic dephasing

Jiménez-Galán¹,

Silva²,

Ivanov³

2022

Preprint

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2D materials with broken inversion symmetry posses an extra degree of freedom, the valley pseudospin, that labels in which of the two energy-degenerate crystal momenta, K or K', the conducting carriers are located. It has been shown that shining circularly-polarized light allows to achieve close to 100% of valley polarization, opening the way to valley-based transistors. Yet, switching of the valley polarization is still a key challenge for the practical implementation of such devices due to the short coherence lifetimes. Recent progress in ultrashort laser technology now allows to produce trains of attosecond pulses with controlled phase and polarization between the pulses. Taking advantage of such technology, we introduce a coherent control protocol to turn on, off and switch the valley polarization at faster

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Femtosecond valley polarization and topological resonances in transition metal dichalcogenides

Cited by 47 publications

References 62 publications

Mark Stockman: Evangelist for Plasmonics

Mark Stockman: Evangelist for Plasmonics

Ultrafast optical currents in gapped graphene

All-optical valley switch and clock of electronic dephasing

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