Structural modification in bulk synthetic diamond by ultrashort mid-IR laser pulses

IF 5.1 3区 材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS Diamond and Related Materials Pub Date : 2025-03-01 Epub Date: 2025-02-14 DOI:10.1016/j.diamond.2025.112114
Petr Pakholchuk , Nikita Smirnov , Nikolay Busleev , Alexey Gorevoy , Pavel Danilov , Victor Vins , Sergey Kudryashov
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Abstract

Red synthetic diamond synthesized at high pressure and high temperature (HPHT), e-beam exposed and post-annealed, was exposed in its bulk to 150-fs laser pulses at the 4673-nm wavelength, corresponding to the intrinsic two-phonon absorption of diamond, after their focusing by a reflective objective with a numerical aperture of 0.5. The obtained arrays of laser-irradiated micrometer-scale regions were characterized by optical transmission, FTIR and 3D-confocal photoluminescence (PL) microspectroscopies at room temperature, exhibiting minor local reduction of NV-centers and related H1a-centers, while the simultaneous minor increase of H3(H4)-center content.

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超短中红外激光脉冲对块状合成金刚石的结构改性
利用数值孔径为0.5的反射物镜聚焦,在高压高温条件下合成的红色人造金刚石经电子束暴露和退火后,整体暴露在4673 nm波长150fs的激光脉冲(对应于金刚石的本征双声子吸收)下。通过光学透射、FTIR和三维共聚焦光致发光(PL)在室温下对所获得的激光辐照微米尺度区域阵列进行了表征,发现nv中心和相关h1a中心的局部减少,同时H3(H4)中心的含量也略有增加。
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来源期刊
Diamond and Related Materials
Diamond and Related Materials 工程技术-材料科学:综合
CiteScore
6.00
自引率
14.60%
发文量
702
审稿时长
2.1 months
期刊介绍: DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.
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