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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202302974
|2 doi
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|a pubmed24n1194.xml
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|a (DE-627)NLM358364310
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|a (NLM)37334883
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Xu, Rui
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Phonon Polaritonics in Broad Terahertz Frequency Range with Quantum Paraelectric SrTiO3
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 11.08.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Photonics in the frequency range of 5-15 terahertz (THz) potentially open a new realm of quantum materials manipulation and biosensing. This range, sometimes called "the new terahertz gap", is traditionally difficult to access due to prevalent phonon absorption bands in solids. Low-loss phonon-polariton materials may realize sub-wavelength, on-chip photonic devices, but typically operate in mid-infrared frequencies with narrow bandwidths and are difficult to manufacture on a large scale. Here, for the first time, quantum paraelectric SrTiO3 enables broadband surface phonon-polaritonic devices in 7-13 THz. As a proof of concept, polarization-independent field concentrators are designed and fabricated to locally enhance intense, multicycle THz pulses by a factor of 6 and increase the spectral intensity by over 90 times. The time-resolved electric field inside the concentrators is experimentally measured by THz-field-induced second harmonic generation. Illuminated by a table-top light source, the average field reaches 0.5 GV m-1 over a large volume resolvable by far-field optics. These results potentially enable scalable THz photonics with high breakdown fields made of various commercially available phonon-polariton crystals for studying driven phases in quantum materials and nonlinear molecular spectroscopy
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|a Journal Article
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|a driven quantum materials
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|a nonlinear spectroscopy
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|a phonon polaritons
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|a strontium titanate
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4 |
|a terahertz photonics
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|a Lin, Tong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Jiaming
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Xiaotong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Blackert, Elizabeth R
|e verfasserin
|4 aut
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1 |
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|a Moon, Alyssa R
|e verfasserin
|4 aut
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| 700 |
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|a JeBailey, Khalil M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhu, Hanyu
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 32 vom: 19. Aug., Seite e2302974
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:32
|g day:19
|g month:08
|g pages:e2302974
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|u http://dx.doi.org/10.1002/adma.202302974
|3 Volltext
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