Self-starting Cr²⁺:ZnSe femtosecond laser with 200 nm continuous tuning and 96.5 nm bandwidth at 2.2 µm.

IF 3.2 2区物理与天体物理 Q2 OPTICS

Optics express Pub Date : 2025-01-27 DOI:10.1364/OE.546589

Elizaveta A Kozlova, Aram A Mkrtchyan, Dmitry A Nazarov, Dmitry V Krasnikov, Albert G Nasibulin, Yury G Gladush, Mikhail K Tarabrin

引用次数: 0

Abstract

High-resolution optical diagnostics in the short wavelength infrared (SWIR II) region have gained significant attention in medical research, showing great potential for tissue spectroscopy and visualization due to the region's low water absorption and scattering coefficients. However, high-beam-quality sources covering an entire spectral range are limited. This paper presents the development of a femtosecond Cr²⁺:ZnSe laser with a 2.2 µm center wavelength, a pulse duration of 60 fs, a spectral width of 96.5 nm, and an energy of 4.5 nJ. The resulting source is expected to enable spectroscopy and the optical coherence tomography system for diagnosing collagen-rich tissues.

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自启动Cr2+:ZnSe飞秒激光器，连续调谐200 nm，带宽为96.5 nm，波长为2.2µm。

短波红外（SWIR II）区域的高分辨率光学诊断在医学研究中受到了极大的关注，由于该区域的低吸水和散射系数，在组织光谱和可视化方面显示出巨大的潜力。然而，覆盖整个光谱范围的高光束质量光源是有限的。本文研制了一种中心波长为2.2µm、脉冲持续时间为60 fs、光谱宽度为96.5 nm、能量为4.5 nJ的飞秒Cr2+:ZnSe激光器。由此产生的源有望使光谱学和光学相干断层扫描系统诊断胶原蛋白丰富的组织。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optics express 物理-光学

CiteScore

6.60

自引率

15.80%

发文量

5182

审稿时长

2.1 months

期刊介绍： Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.

Self-starting Cr2+:ZnSe femtosecond laser with 200 nm continuous tuning and 96.5 nm bandwidth at 2.2 µm.

Abstract

Self-starting Cr²⁺:ZnSe femtosecond laser with 200 nm continuous tuning and 96.5 nm bandwidth at 2.2 µm.