Switchable thin-film filters enabled by the phase transition of vanadium dioxide

Chenghao Wan; David Woolf; Colin M. Hessel; Jad Salman; Yuzhe Xiao; Albert Wright; Joel M. Hensley; Mikhail A. Kats

doi:10.1117/12.2594032

4 August 2021 Switchable thin-film filters enabled by the phase transition of vanadium dioxide

Chenghao Wan, David Woolf, Colin M. Hessel, Jad Salman, Yuzhe Xiao, Albert Wright, Joel M. Hensley, Mikhail A. Kats

Proceedings Volume 11796, Active Photonic Platforms XIII; 117961X (2021) https://doi.org/10.1117/12.2594032
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

We demonstrated the fabrication of thin-film stacks comprising mid-infrared-transparent dielectric layers and active optical materials, enabling the creation of tunable mid-infrared filters. In particular, we designed and fabricated an induced-transmission filter (ITF)—a dielectric thin-film filter that uses an ultrathin metal layer to remove unwanted sidebands around a desired passband—where the metal layer is replaced by a prototype phase-transition material, vanadium dioxide (VO2). We designed filters with one or more tunable passbands, and experimentally demonstrated a filter that switches between a broadband transmission window in the mid infrared (8 – 12 µm) and a narrow passband centered around 8.8 µm.

Conference Presentation

Citation Download Citation

Chenghao Wan, David Woolf, Colin M. Hessel, Jad Salman, Yuzhe Xiao, Albert Wright, Joel M. Hensley, and Mikhail A. Kats "Switchable thin-film filters enabled by the phase transition of vanadium dioxide", Proc. SPIE 11796, Active Photonic Platforms XIII, 117961X (4 August 2021); https://doi.org/10.1117/12.2594032

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