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Herein, the authors investigate the temperature‐dependent properties of delayed luminescence in an as‐grown nitrogen‐containing chemical vapor deposition synthetic diamond gemstone when excited above its bandgap. At room temperature, this gemstone exhibits delayed luminescence from nitrogen‐vacancy centers at 575 nm. However, at 77 K, the first recorded instance of a long‐lived delayed blue luminescence...
In this paper, the authors explore the spectral properties of a sharp emission line centered at 499.6 nm (reported previously as 499 nm) observed in the UV‐luminescence spectrum of synthetic CVD diamond gemstones. These gemstones also exhibit spectrally prompt broad blue luminescence centered at 435 nm which is similar in character to the 425 nm blue luminescence characteristic of type IIa natural...
This paper presents new algorithm for improving the visual definition quality of real integral images computationally throughimage reconstructing. The proposed algorithm takes advantage of true 3D “Integral imaging”. A real world scene is recorded based on the fly's eye technique, which is simulated by an array of microlenses‥ The proposed method works on orthographic viewpoint images, where shift-and-integration...
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