基于BaGa4Se7晶体的双输出长波红外光源。

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-03-01 DOI:10.1364/OL.552087

Liyuan Guo, Weifan Li, Feng Qi, Xingyu Zhang, Jiyong Yao, Xu Guo, Pengxiang Liu

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引用次数: 0

摘要

本文提出了一种基于BaGa4Se7晶体的相干长波红外光源，调谐范围为6.7 ~ 15 μm。泵浦反射双通配置可以有效降低阈值，实现双端口输出。对前向输出和后向输出的时间序列数据进行统计分析，揭示了强烈的线性回归关系。这一特性使单次同步光谱分析成为可能，其中正向输出通过样品传输，反向输出作为参考。与传统的异步方法相比，同步方法通过最小化源波动的影响，缩短了扫描时间并减少了误差。这种双输出源显示了在生物医学诊断和大气监测等应用中快速准确的光谱分析的潜力。

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Dual-output long-wave infrared sources based on a BaGa₄Se₇ crystal.

This paper presents a coherent long-wave infrared source based on a BaGa₄Se₇ crystal with a tuning range from 6.7 to 15 μm. The pump-reflected double-pass configuration effectively reduces the threshold and enables dual-port output. A statistical analysis of the time-series data from forward and backward outputs revealed a strong linear regression relationship. This characteristic enables single-shot synchronous spectroscopic analysis, where the forward output transmits through the sample and the backward output serves as the reference. Compared to traditional asynchronous methods, the synchronous approach offers a shorter scan time and reduced error by minimizing the impact of source fluctuations. This dual-output source shows potential for rapid and accurate spectroscopic analysis in applications such as biomedical diagnostics and atmospheric monitoring.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.