高真空镀膜法在潜在手印显现中的应用研究进展

Latest Progress in Fingerprints Detection with Metal Thin Films for Forensic Science

高真空镀膜技术已广泛应用于工业领域,同时也逐渐被法庭科学领域作为手印证据提取的重要技术手段而应用。本文针对高真空镀膜法对潜在手印的显现原理、金属原料选择、客体适用以及与其他显现技术比较等方面综述了高真空镀膜法在手印显现领域的研究进展,并对未来的研究方向加以展望,便于后续开展研究。

The latest development offingerprints detection by deposition of metal thin films in forensic science was tentatively reviewed.The discussions,with specific examples reported in literature,focused on：i）the operation principles of fingerprints detection by metal film deposition;ii）the impact of the metal coating conditions,including but not limited to the selection of suitable metals,properties of fingerprints and substrates,possible contaminations,film growth sequence and cycles,film synthesis techniques,and characterization methods of the microstructures of the metal coatingsurfaces,on the detection,resolution and reliability of fingerprints images;iii）the existing technical problems and possible solutions;iv）the technical advantages of the newly-developed technique over the conventional ones for fingerprints detection.In addition,the development trends of fingerprints detection in forensic science by growth of metal thin films were also briefly discussed in a thought provoking way.