Transparency of the strong shock-compressed diamond for 532 nm laser light

Journal Article · Fri Apr 15 04:00:00 EDT 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4945630· OSTI ID:22599156

Zhang, Zhiyu ^[1]; Zhao, Yang; Yang, Jiamin ^[1]

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1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900 (China)

An optical reflectivity and transmissivity model for the shock-compressed diamond is established and used to calculate the optical reflectivity and transmissivity of the diamond under different shock compressions. The simulated results indicate that the reflection occurs at the shock front and does not depend on the thickness of the compressed diamond, but the transmissivity decreases with the thickness. The simulated reflectivity is consistent with the experimental results in the literature, which validates the model. It is shown that the diamond keeps transparent when the shock pressure is lower than 2.00 Mbar, and becomes opaque but does not reflect the probe laser as the shock pressure increases from 2.00 Mbar to 4.60 Mbar and reflects the probe laser markedly when the shock pressure is higher than 4.60 Mbar.

• OSTI ID: 22599156
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 4 Vol. 23; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPRESSION
DIAMONDS
LASER RADIATION
LASERS
OPACITY
PROBES
REFLECTION
REFLECTIVITY
SIMULATION
THICKNESS