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Updated: Jun 13, 2026

Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition

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Refining method for the design of multilayer stacks.

F Demichelis¹, G Ferrari, E Minetti-Mezzetti

¹Centro Ricerche Fiat, Torino, Italy.

|April 15, 2010

Summary

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This study presents a method to optimize multilayer film transmittance by adjusting film thickness. The refining process enhances spectral transmittance using minimal matching layers.

Area of Science:

Optics
Materials Science
Thin Film Technology

Background:

Multilayer optical coatings are crucial for various applications.
Optimizing transmittance and efficiency is essential for device performance.
Current methods may require complex layer designs.

Purpose of the Study:

To develop an analytical procedure for calculating maximum transmittance and efficiency in multilayer films.
To introduce a refining process for optimizing film thickness.
To demonstrate the effectiveness of this method in improving spectral transmittance.

Main Methods:

Analytical calculation of transmittance and efficiency.
Iterative adjustment of film thicknesses in multilayer stacks.
Simulation of spectral transmittance for refined configurations.

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Last Updated: Jun 13, 2026

Production of Single Tracks of Ti-6Al-4V by Directed Energy Deposition to Determine the Layer Thickness for Multilayer Deposition

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Main Results:

A procedure for calculating maximum transmittance and efficiency was established.
The refining process successfully improved spectral transmittance.
Optimization was achieved with a minimal number of matching layers.

Conclusions:

The presented analytical procedure effectively optimizes multilayer film performance.
Adjusting film thickness is a viable strategy for enhancing spectral transmittance.
This method offers an efficient approach to designing high-performance optical coatings.