相关实验视频
Updated: Jul 6, 2026
10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
11.7K
素调 BiOX (X = Cl, Br, I) 层状晶体具有优越的宽带非线性和吸收,用于脉冲激光调制
Xiaofei Ma1, Jian Zhang1, Tao Wang1
1State Key Lab of Crystal Materials, Shandong University, Jinan 250100, China.
ACS applied materials & interfaces
|June 25, 2025
概括
研究人员使用BiOX晶体开发了新的非线性光学 (NLO) 设备,通过增加素原子半径来提高其性能. 这些新的NLO材料提供了改进的制造和更广泛的光学应用.
科学领域:
- 材料科学 材料科学 材料科学
- 光学是什么?光学是什么?光学是什么?
- 固态物理 固态物理
背景情况:
- 非线性光学 (NLO) 材料对信息,能源和生物学至关重要,但理想的材料平衡带隙和非线性系数的开发具有挑战性.
- 生物氧化物 (XCl,Br,I) 晶体由于其多层结构,无毒性,可调节带间隙和光电子特性而具有前景.
- 目前关于BIOX NLO特性的研究重点是纳米薄膜,这些薄膜很难制造成设备.
研究的目的:
- 准备一系列BiOX晶体非线性光学 (NLO) 设备,具有易于剥落和广泛的光谱范围.
- 为了研究这些具有不同频段间隙的BIOX设备的NLO特性.
- 为了评估它们作为近红外激光波段中的和吸收器的性能.
主要方法:
- 制造BiOX晶体非线性光学 (NLO) 设备,容易脱皮.
- 光学传输窗口的特征,光谱范围,非线性特性和激光损伤值.
- 对近红外 (1和2微米) 激光波段中NLO特性和和吸收器性能进行研究,用于带间隙变化的BIOX设备.
主要成果:
- 准备好的BIOX NLO设备表现出容易脱皮,广泛的光学传输窗口和广泛的光谱范围 (可见到红外).
- 发现BiOX NLO设备的非线性性能随着素原子半径 (Cl 到 I) 的增加而增强.
- 在近红外激光波段中,BIOX设备证明了其作为和吸收器的适用性.
结论:
- 这项工作成功开发了具有改进制造和性能的BIOX晶体非线性光学 (NLO) 设备.
- 这些发现表明,非线性性能与素原子半径相关,提供了一个新的设计策略.
- 这项研究扩大了BIOX晶体的非线性应用,并为NLO晶体材料研究提供了新的视角.
相关概念视频
02:18X-ray Crystallography
The size of the unit cell and the arrangement of atoms in a crystal may be determined from measurements of the diffraction of X-rays by the crystal, termed X-ray crystallography.
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
Diffraction
Diffraction is the change in the direction of travel experienced by an electromagnetic wave when it encounters a physical barrier whose dimensions are comparable to those of the wavelength of the light. X-rays are electromagnetic radiation with wavelengths about as long as the distance between neighboring...
01:10X-ray Diffraction of Biological Samples
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...
01:18Imaging Biological Samples with Optical Microscopy
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
01:29Determination of Crystal Structures
In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...