"桦木"中CaCuSi PDMATHAAB O $_{10}$（埃及蓝）的鉴别。罗伯特·福尔克（1907年）使用光致发光绘制的“春天”
Identification of CaCuSi$_4$O$_{10}$ (Egyptian blue) in the "Birch. Spring" painting by Robert Falk (1907) using photoluminescence
摘要：
我们在"桦树"的油漆层中发现了埃及蓝色素。“春天”由罗伯特福尔克（1907年）绘画;我们也发现这种颜料在画布背面绘制的素描颜料。这可能是在20世纪的艺术作品中首次发现埃及蓝。我们分析了现代商业埃及蓝颜料（Kremer），发现它适合作为光致发光光谱分析的标准。CaCuSi $_4$ O $_{10}$的特征光致发光峰在910 nm附近达到最大值。发光被非相干绿光或蓝光有效地激发。研究表明，非相干光激发的光致发光光谱显微分析可以有效地用于艺术品漆层中发光颜料的鉴定。
英文摘要：
We have detected Egyptian blue pigment in the paint layer of the "Birch. Spring" painting by Robert Falk (1907); we have also found this pigment in the paints of the sketch drawn on the canvas back side. This is probably the first discovery of Egyptian blue in a 20th century work of art. We have analyzed a modern commercial Egyptian blue pigment (Kremer) and found it to be suitable as a standard for photoluminescence spectral analysis. The characteristic photoluminescence band of CaCuSi$_4$O$_{10}$ reaches maximum at the wavelength of about 910 nm. The luminescence is efficiently excited by incoherent green or blue light. The study demonstrates that the photoluminescence spectral micro analysis using excitation by incoherent light can be efficiently used for the identification of luminescent pigments in paint layers of artworks.
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