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Electronic modulation of THz radiation at NovoFEL : Technical aspects and possible applications. / Shevchenko, Oleg A.; Melnikov, Anatoly R.; Tararyshkin, Sergey V. и др.

в: Materials, Том 12, № 19, 3063, 20.09.2019.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

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@article{879e8fc27e4c42f897164988b6c2eed3,

title = "Electronic modulation of THz radiation at NovoFEL: Technical aspects and possible applications",

abstract = "The Novosibirsk Free Electron Laser (NovoFEL) facility is able to produce high-power tunable terahertz (THz) laser radiation in quasi-continuous mode. The ability to control/shape this THz radiation is required in a number of user experiments. In this work we propose a modulation approach suitable for free electron lasers based on recuperation design. It allows for generating THz macropulses of a desirable length, down to several microseconds (limited by a quality factor of FEL optical resonator). Using this approach, macropulses in the time window from several microseconds to several hundred microseconds have been shown for three possible frequency ranges: mid-infrared (~1100 cm-1), far-infrared (~200 cm-1) and THz (~40 cm-1). In each case, the observed rise and decay of the macropulse have been measured and interpreted. The advantage of using short macropulses at the maximum peak power available has been demonstrated with the time-resolved Electron Paramagnetic Resonance (EPR) spectroscopy.",

keywords = "Electronic modulation, EPR spectroscopy, Free-electron laser, Macropulse, NovoFEL, THz radiation, LASER, OPTICAL-RESONATOR, macropulse, SPIN-STATE, free-electron laser, TRANSITIONS, TERAHERTZ, electronic modulation",

author = "Shevchenko, {Oleg A.} and Melnikov, {Anatoly R.} and Tararyshkin, {Sergey V.} and Getmanov, {Yaroslav V.} and Serednyakov, {Stanislav S.} and Bykov, {Evgeny V.} and Kubarev, {Vitaly V.} and Fedin, {Matvey V.} and Veber, {Sergey L.}",

year = "2019",

month = sep,

day = "20",

doi = "10.3390/ma12193063",

language = "English",

volume = "12",

journal = "Materials",

issn = "1996-1944",

publisher = "MDPI AG",

number = "19",

}

RIS

TY - JOUR

T1 - Electronic modulation of THz radiation at NovoFEL

T2 - Technical aspects and possible applications

AU - Shevchenko, Oleg A.

AU - Melnikov, Anatoly R.

AU - Tararyshkin, Sergey V.

AU - Getmanov, Yaroslav V.

AU - Serednyakov, Stanislav S.

AU - Bykov, Evgeny V.

AU - Kubarev, Vitaly V.

AU - Fedin, Matvey V.

AU - Veber, Sergey L.

PY - 2019/9/20

Y1 - 2019/9/20

N2 - The Novosibirsk Free Electron Laser (NovoFEL) facility is able to produce high-power tunable terahertz (THz) laser radiation in quasi-continuous mode. The ability to control/shape this THz radiation is required in a number of user experiments. In this work we propose a modulation approach suitable for free electron lasers based on recuperation design. It allows for generating THz macropulses of a desirable length, down to several microseconds (limited by a quality factor of FEL optical resonator). Using this approach, macropulses in the time window from several microseconds to several hundred microseconds have been shown for three possible frequency ranges: mid-infrared (~1100 cm-1), far-infrared (~200 cm-1) and THz (~40 cm-1). In each case, the observed rise and decay of the macropulse have been measured and interpreted. The advantage of using short macropulses at the maximum peak power available has been demonstrated with the time-resolved Electron Paramagnetic Resonance (EPR) spectroscopy.

AB - The Novosibirsk Free Electron Laser (NovoFEL) facility is able to produce high-power tunable terahertz (THz) laser radiation in quasi-continuous mode. The ability to control/shape this THz radiation is required in a number of user experiments. In this work we propose a modulation approach suitable for free electron lasers based on recuperation design. It allows for generating THz macropulses of a desirable length, down to several microseconds (limited by a quality factor of FEL optical resonator). Using this approach, macropulses in the time window from several microseconds to several hundred microseconds have been shown for three possible frequency ranges: mid-infrared (~1100 cm-1), far-infrared (~200 cm-1) and THz (~40 cm-1). In each case, the observed rise and decay of the macropulse have been measured and interpreted. The advantage of using short macropulses at the maximum peak power available has been demonstrated with the time-resolved Electron Paramagnetic Resonance (EPR) spectroscopy.

KW - Electronic modulation

KW - EPR spectroscopy

KW - Free-electron laser

KW - Macropulse

KW - NovoFEL

KW - THz radiation

KW - LASER

KW - OPTICAL-RESONATOR

KW - macropulse

KW - SPIN-STATE

KW - free-electron laser

KW - TRANSITIONS

KW - TERAHERTZ

KW - electronic modulation

UR - http://www.scopus.com/inward/record.url?scp=85073726989&partnerID=8YFLogxK

U2 - 10.3390/ma12193063

DO - 10.3390/ma12193063

M3 - Article

C2 - 31547101

AN - SCOPUS:85073726989

VL - 12

JO - Materials

JF - Materials

SN - 1996-1944

IS - 19

M1 - 3063

ER -

ID: 21936921

Electronic modulation of THz radiation at NovoFEL: Technical aspects and possible applications

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