Instrumentation, Techniques, and Measurement

High-resolution topograms of fingerprints using multiwavelength digital holography

[+] Author Affiliations
Ujitha Abeywickrema

University of Dayton, Department of Electro-Optics and Photonics, Dayton, College Park, Ohio, United States

Partha Banerjee

University of Dayton, Department of Electro-Optics and Photonics, Dayton, College Park, Ohio, United States

University of Dayton, Department of Electrical and Computer Engineering, Dayton, College Park, Ohio, United States

Akash Kota

University of Dayton, Department of Electrical and Computer Engineering, Dayton, College Park, Ohio, United States

Stephen E. Swiontek, Akhlesh Lakhtakia

The Pennsylvania State University, Department of Engineering Science and Mechanics, University Park, Pennsylvania, United States

Opt. Eng. 56(3), 034117 (Mar 28, 2017). doi:10.1117/1.OE.56.3.034117
History: Received December 28, 2016; Accepted March 13, 2017
Text Size: A A A

Abstract.  Fingerprint analysis is a popular identification technique due to the uniqueness of fingerprints and the convenience of recording them. The quality of a latent fingerprint on a surface can depend on various conditions, such as the time of the day, temperature, and the composition of sweat. We first developed latent fingerprints on transparent and blackened glass slides by depositing 1000-nm-thick columnar thin films (CTFs) of chalcogenide glass of nominal composition Ge28Sb12Se60. Then, we used transmission-/reflection-mode multiwavelength digital holography to construct the topograms of CTF-developed fingerprints on transparent/blackened glass slides. The two wavelengths chosen were 514.5 and 457.9 nm, yielding a synthetic wavelength of 4.1624  μm, which is sufficient to resolve pores of depths 1 to 2  μm. Thus, our method can be used to measure the level-3 details that are usually difficult to observe with most other techniques applied to latent fingerprints.

Figures in this Article
© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Ujitha Abeywickrema ; Partha Banerjee ; Akash Kota ; Stephen E. Swiontek and Akhlesh Lakhtakia
"High-resolution topograms of fingerprints using multiwavelength digital holography", Opt. Eng. 56(3), 034117 (Mar 28, 2017). ; http://dx.doi.org/10.1117/1.OE.56.3.034117


Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.