Fabrication of micro-optical components using femtosecond oscillator pulses

Vanessa R. M. Rodrigues; Hema Ramachandran; Santhosh Chidangil; Deepak Mathur

doi:10.1117/12.2270898

13 June 2017 Fabrication of micro-optical components using femtosecond oscillator pulses

Vanessa R. M. Rodrigues, Hema Ramachandran, Santhosh Chidangil, Deepak Mathur

Proceedings Volume 10449, Fifth International Conference on Optical and Photonics Engineering; 104492V (2017) https://doi.org/10.1117/12.2270898
Event: Fifth International Conference on Optical and Photonics Engineering, 2017, Singapore, Singapore

Abstract

With a penchant for integrated photonics and miniaturization, the fabrication of micron sized optical elements using precision laser pulse management is drawing attention due to the possibility of minimizing tolerances for collateral material damage. The work presented here deals with the design, fabrication and characterization of a range of diffractive optics - gratings, grids and Fresnel zone plates – on transparent and metallic samples. Their low volume, light weight, transmission bandwidth, high damage threshold and flexible design make them suited for replacing conventional refractive optical elements. Our one-step, mask-less, 3-D laser direct writing process is a green fabrication technique which is in stark contrast to currently popular Photo-lithography based micro-structuring. Our method provides scope for modifications on the surface as well as within the bulk of the material. The mechanism involved in the fabrication of these optics on transparent and thin metallic substrates differ from each other. Our studies show that both amplitude and phase versions of micro-structures were achieved successfully with performances bearing ~98% accuracy vis-a-vis theoretical expectations.

Citation Download Citation

Vanessa R. M. Rodrigues, Hema Ramachandran, Santhosh Chidangil, and Deepak Mathur "Fabrication of micro-optical components using femtosecond oscillator pulses", Proc. SPIE 10449, Fifth International Conference on Optical and Photonics Engineering, 104492V (13 June 2017); https://doi.org/10.1117/12.2270898

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical design

Femtosecond phenomena

Optical components

Oscillators

Zone plates

Laser ablation

Laser optics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years