Enhanced saturable absorption in the laser-treated free-standing carbon nanotube films

V. V. Vanyukov; K. G. Mikheev; A. G. Nasibulin; Y. Svirko; G. M. Mikheev

doi:10.1364/OL.399852

Enhanced saturable absorption in the laser-treated free-standing carbon nanotube films

V. V. Vanyukov^*, K. G. Mikheev, A. G. Nasibulin, Y. Svirko, G. M. Mikheev

^*Corresponding author for this work

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Abstract

We demonstrate an increase of optical transmittance and saturable absorption of laser-treated free-standing single-walled carbon nanotube (SWNT) films. The combined acid and low-power non-destructive laser treatment ensures an enhancement of linear transmittance across the visible range and double-digit increase of the saturable absorption of femtosecond laser radiation at 795 nm. The saturable absorption coefficient and the ratio of saturable to non-saturable losses increase by 26% and 35%, correspondingly, while the saturation intensity decreases by 20% because of the treatment. Our analysis indicates that with the performed treatment one can significantly improve the nonlinear optical properties of free-standing SWNT-based ultrafast saturable absorbers.

Original language	English
Pages (from-to)	5377-5380
Number of pages	4
Journal	Optics Letters
Volume	45
Issue number	19
DOIs	https://doi.org/10.1364/OL.399852
Publication status	Published - 1 Oct 2020
MoE publication type	A1 Journal article-refereed

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10.1364/OL.399852

ol-45-19-5377-1Final published version, 1.06 MBLicence: Other

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title = "Enhanced saturable absorption in the laser-treated free-standing carbon nanotube films",

abstract = "We demonstrate an increase of optical transmittance and saturable absorption of laser-treated free-standing single-walled carbon nanotube (SWNT) films. The combined acid and low-power non-destructive laser treatment ensures an enhancement of linear transmittance across the visible range and double-digit increase of the saturable absorption of femtosecond laser radiation at 795 nm. The saturable absorption coefficient and the ratio of saturable to non-saturable losses increase by 26% and 35%, correspondingly, while the saturation intensity decreases by 20% because of the treatment. Our analysis indicates that with the performed treatment one can significantly improve the nonlinear optical properties of free-standing SWNT-based ultrafast saturable absorbers.",

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AU - Vanyukov, V. V.

AU - Mikheev, K. G.

AU - Nasibulin, A. G.

AU - Svirko, Y.

AU - Mikheev, G. M.

PY - 2020/10/1

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N2 - We demonstrate an increase of optical transmittance and saturable absorption of laser-treated free-standing single-walled carbon nanotube (SWNT) films. The combined acid and low-power non-destructive laser treatment ensures an enhancement of linear transmittance across the visible range and double-digit increase of the saturable absorption of femtosecond laser radiation at 795 nm. The saturable absorption coefficient and the ratio of saturable to non-saturable losses increase by 26% and 35%, correspondingly, while the saturation intensity decreases by 20% because of the treatment. Our analysis indicates that with the performed treatment one can significantly improve the nonlinear optical properties of free-standing SWNT-based ultrafast saturable absorbers.

AB - We demonstrate an increase of optical transmittance and saturable absorption of laser-treated free-standing single-walled carbon nanotube (SWNT) films. The combined acid and low-power non-destructive laser treatment ensures an enhancement of linear transmittance across the visible range and double-digit increase of the saturable absorption of femtosecond laser radiation at 795 nm. The saturable absorption coefficient and the ratio of saturable to non-saturable losses increase by 26% and 35%, correspondingly, while the saturation intensity decreases by 20% because of the treatment. Our analysis indicates that with the performed treatment one can significantly improve the nonlinear optical properties of free-standing SWNT-based ultrafast saturable absorbers.

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Enhanced saturable absorption in the laser-treated free-standing carbon nanotube films

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