On the analysis of optical signals from Ti35Nb6Ta and Ti6Al4V surfaces

Niko Penttinen; Stanislav Hason; Ludek Joska; Ladislav Cvrcek; Raimo Silvennoinen

doi:10.1117/12.916062

22 November 2011 On the analysis of optical signals from Ti₃₅Nb₆Ta and Ti₆Al₄V surfaces

Niko Penttinen, Stanislav Hason, Ludek Joska, Ladislav Cvrcek, Raimo Silvennoinen

Proceedings Volume 8338, Tenth International Conference on Correlation Optics; 83380Q (2011) https://doi.org/10.1117/12.916062
Event: Correlation Optics 2011, 2011, Chernivsti, Ukraine

Abstract

Chemical components and initial optical responses of Ti35Nb6Ta alloy are reported. Polished titanium and other titanium alloy Ti₆Al₄V served as reference surfaces. The chemical composition was determined with an X-ray photoelectron spectroscope (XPS) for the surfaces as well as for water, phosphate buffered saline (PBS) and for human plasma fibrinogen (HPF in PBS) exposed surfaces. The reflectance of the surfaces was modeled utilizing Bruggeman's model, to evaluate the optical changes that the chemical reaction of each liquid can produce. After the model, a diffractive optical element (DOE) based sensor was used to determine the temporal optical signal from the sample surfaces. The coherent and non-coherent signals gathered with DOE sensor were compared to the reflectance model. Exposing to the liquids showed surface oxidation, which could produce lowered reflectance of the surface. The model and the initial temporal responses showed similarities in non-coherent reflectance.

Citation Download Citation

Niko Penttinen, Stanislav Hason, Ludek Joska, Ladislav Cvrcek, and Raimo Silvennoinen "On the analysis of optical signals from Ti₃₅Nb₆Ta and Ti₆Al₄V surfaces", Proc. SPIE 8338, Tenth International Conference on Correlation Optics, 83380Q (22 November 2011); https://doi.org/10.1117/12.916062

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available