Near-infrared ultrafast third-order nonlinear optical response of 2D NbS2, NbSe2, ZrTe2, and MoS2

被引：5

作者：

Carvalho, Alyson J. A. ^{[1
]}

Campos, Cecilia L. A. V. ^{[1
]}

Valente, Denise ^{[1
]}

Jawaid, Ali M. ^{[2
]}

Busch, Robert ^{[2
]}

Vaia, Richard A. ^{[2
]}

Gomes, Anderson S. L. ^{[1
]}

机构：

[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

[2] AF Res Labs, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

来源：

OPTICS LETTERS | 2023年 / 48卷 / 09期

关键词：

Infrared devices - Layered semiconductors - Molybdenum compounds - Nonlinear optics - Refractive index - Selenium compounds - Sulfur compounds - Tellurium compounds - Zirconium compounds;

D O I：

10.1364/OL.487443

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

By employing the optical Kerr gate technique at 800 nm with 180 fs pulses at 76 MHz, we evaluated the third-order nonlinear optical response of two-dimensional (2D) semiconducting MoS2, semimetallic ZrTe2, and metallic NbS2 and NbSe2. The modulus of the nonlinear refractive index was measured to range from 8.6 × 10−19 m2/W to 5.3 × 10−18 m2/W, with all materials’ response time limited by the pulse duration. The physical mechanism to explain the ultrafast response time’s origin considers the nature of the 2D material, as will be discussed. © 2023 Optica Publishing Group.

引用

页码：2297 / 2300

页数：4

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