Ultrafast, high modulation depth terahertz modulators based on carbon nanotube thin films

Maria G. Burdanova; Gleb M. Katyba; Reza Kashtiban; Gennady A. Komandin; Edward Butler-Caddle; Michael Staniforth; Aram A. Mkrtchyan; Dmitry V. Krasnikov; Yuriy G. Gladush; Jeremy Sloan; Albert G. Nasibulin; James Lloyd-Hughes

doi:10.1016/j.carbon.2020.11.008

Ultrafast, high modulation depth terahertz modulators based on carbon nanotube thin films

Maria G. Burdanova, Gleb M. Katyba, Reza Kashtiban, Gennady A. Komandin, Edward Butler-Caddle, Michael Staniforth, Aram A. Mkrtchyan, Dmitry V. Krasnikov, Yuriy G. Gladush, Jeremy Sloan, Albert G. Nasibulin, James Lloyd-Hughes

Research output: Contribution to journal › Article › Scientific › peer-review

10 Citations (Scopus)

Abstract

The development of THz technology and communication systems is creating demand for devices that can modulate THz beams rapidly. Here we report the design and characterisation of high-performance, broadband THz modulators based on the photo-induced transparency of carbon nanotube films. Rather than operating in the standard modulation mode, where optical excitation lowers transmission, this new class of modulators exhibits an inverted modulation mode with an enhanced transmission. Under femtosecond pulsed illumination, modulation depths reaching +80% were obtained simultaneously with modulation speeds of 340 GHz. The influence of the film thickness on the insertion loss, modulation speed and modulation depth was explored over a frequency range from 400 GHz to 2.6 THz. The excellent modulation depth and high modulation speed demonstrated the significant potential of carbon nanotube thin films for ultrafast THz modulators.

Original language	English
Pages (from-to)	245-252
Number of pages	8
Journal	Carbon
Volume	173
DOIs	https://doi.org/10.1016/j.carbon.2020.11.008
Publication status	Published - Mar 2021
MoE publication type	A1 Journal article-refereed

Keywords

terahetz modulator
carbon nanotubes
THz-TDS
ultrafast devices

Access to Document

10.1016/j.carbon.2020.11.008

Cite this

Burdanova, Maria G. ; Katyba, Gleb M. ; Kashtiban, Reza ; Komandin, Gennady A. ; Butler-Caddle, Edward ; Staniforth, Michael ; Mkrtchyan, Aram A. ; Krasnikov, Dmitry V. ; Gladush, Yuriy G. ; Sloan, Jeremy ; Nasibulin, Albert G. ; Lloyd-Hughes, James. / Ultrafast, high modulation depth terahertz modulators based on carbon nanotube thin films. In: Carbon. 2021 ; Vol. 173. pp. 245-252.

@article{2ba185b3b1d34ba693b15a5f0db87dfb,

title = "Ultrafast, high modulation depth terahertz modulators based on carbon nanotube thin films",

abstract = "The development of THz technology and communication systems is creating demand for devices that can modulate THz beams rapidly. Here we report the design and characterisation of high-performance, broadband THz modulators based on the photo-induced transparency of carbon nanotube films. Rather than operating in the standard modulation mode, where optical excitation lowers transmission, this new class of modulators exhibits an inverted modulation mode with an enhanced transmission. Under femtosecond pulsed illumination, modulation depths reaching +80% were obtained simultaneously with modulation speeds of 340 GHz. The influence of the film thickness on the insertion loss, modulation speed and modulation depth was explored over a frequency range from 400 GHz to 2.6 THz. The excellent modulation depth and high modulation speed demonstrated the significant potential of carbon nanotube thin films for ultrafast THz modulators.",

keywords = "terahetz modulator, carbon nanotubes, THz-TDS, ultrafast devices",

author = "Burdanova, {Maria G.} and Katyba, {Gleb M.} and Reza Kashtiban and Komandin, {Gennady A.} and Edward Butler-Caddle and Michael Staniforth and Mkrtchyan, {Aram A.} and Krasnikov, {Dmitry V.} and Gladush, {Yuriy G.} and Jeremy Sloan and Nasibulin, {Albert G.} and James Lloyd-Hughes",

year = "2021",

month = mar,

doi = "10.1016/j.carbon.2020.11.008",

language = "English",

volume = "173",

pages = "245--252",

journal = "Carbon",

issn = "0008-6223",

}

Ultrafast, high modulation depth terahertz modulators based on carbon nanotube thin films. / Burdanova, Maria G.; Katyba, Gleb M.; Kashtiban, Reza; Komandin, Gennady A.; Butler-Caddle, Edward; Staniforth, Michael; Mkrtchyan, Aram A.; Krasnikov, Dmitry V.; Gladush, Yuriy G.; Sloan, Jeremy; Nasibulin, Albert G.; Lloyd-Hughes, James.

In: Carbon, Vol. 173, 03.2021, p. 245-252.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Ultrafast, high modulation depth terahertz modulators based on carbon nanotube thin films

AU - Burdanova, Maria G.

AU - Katyba, Gleb M.

AU - Kashtiban, Reza

AU - Komandin, Gennady A.

AU - Butler-Caddle, Edward

AU - Staniforth, Michael

AU - Mkrtchyan, Aram A.

AU - Krasnikov, Dmitry V.

AU - Gladush, Yuriy G.

AU - Sloan, Jeremy

AU - Nasibulin, Albert G.

AU - Lloyd-Hughes, James

PY - 2021/3

Y1 - 2021/3

N2 - The development of THz technology and communication systems is creating demand for devices that can modulate THz beams rapidly. Here we report the design and characterisation of high-performance, broadband THz modulators based on the photo-induced transparency of carbon nanotube films. Rather than operating in the standard modulation mode, where optical excitation lowers transmission, this new class of modulators exhibits an inverted modulation mode with an enhanced transmission. Under femtosecond pulsed illumination, modulation depths reaching +80% were obtained simultaneously with modulation speeds of 340 GHz. The influence of the film thickness on the insertion loss, modulation speed and modulation depth was explored over a frequency range from 400 GHz to 2.6 THz. The excellent modulation depth and high modulation speed demonstrated the significant potential of carbon nanotube thin films for ultrafast THz modulators.

AB - The development of THz technology and communication systems is creating demand for devices that can modulate THz beams rapidly. Here we report the design and characterisation of high-performance, broadband THz modulators based on the photo-induced transparency of carbon nanotube films. Rather than operating in the standard modulation mode, where optical excitation lowers transmission, this new class of modulators exhibits an inverted modulation mode with an enhanced transmission. Under femtosecond pulsed illumination, modulation depths reaching +80% were obtained simultaneously with modulation speeds of 340 GHz. The influence of the film thickness on the insertion loss, modulation speed and modulation depth was explored over a frequency range from 400 GHz to 2.6 THz. The excellent modulation depth and high modulation speed demonstrated the significant potential of carbon nanotube thin films for ultrafast THz modulators.

KW - terahetz modulator

KW - carbon nanotubes

KW - THz-TDS

KW - ultrafast devices

UR - http://www.scopus.com/inward/record.url?scp=85095974978&partnerID=8YFLogxK

U2 - 10.1016/j.carbon.2020.11.008

DO - 10.1016/j.carbon.2020.11.008

M3 - Article

AN - SCOPUS:85095974978

VL - 173

SP - 245

EP - 252

JO - Carbon

JF - Carbon

SN - 0008-6223

ER -

Ultrafast, high modulation depth terahertz modulators based on carbon nanotube thin films

Abstract

Keywords

Access to Document

Other files and links

Embargoed Document

Fingerprint

Cite this