Dr. Thibault Laurent Profile

Dr. Thibault Laurent

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 12 April 2021 Presentation + Paper

Optical functions integrated onto a mid-wave infrared dectector

N. Péré-Laperne, F. Micoud, A. Brunner, S. Tsekhanovich, A. Bénière, J. Berthoz, T. Cariou, Y. Reibel, L. Macé, E.H. Oubensaid, T. Laurent

Proceedings Volume 11741, 117411D (2021) https://doi.org/10.1117/12.2587852

KEYWORDS: Mid-IR, Integration, Integrated optics, Staring arrays, Infrared radiation, Infrared imaging, Sensors, Linear filtering, Spatial resolution, Roads

Read Abstract +

In the past century, optical functions were integrated onto the visible detectors. Nowadays, most of the visible detectors used for imagery are characterized by a large format, a small pixel pitch and RGB (Red-Green-Blue) filters. In the infrared bands of interest, the mid-wave infrared range (MWIR) can be divided in two sub-bands. The wavelengths associated to the MWIR blue band are ranging from 3.0 up to 4.2 μm and the red band from 4.2 up to 5.1μm. LYNRED and Safran Reosc are developing a new technological brick to integrate two optical functions onto a MWIR focal plane array. The objective of these optical functions is to increase the accuracy of detection minimizing the false alarms. These optical functions are realized onto the FPA like a chess board. On the one hand, half of the pixels are using an antireflective coating. On the other hand, the other pixels are filtered with a high pass filter. As a consequence, the first type of pixels has the ability to detect photons in the entire MW spectral range whereas the others are able to detect in the red band only. A first demonstrator has been realized using this new concept associated to a HgCdTe MW infrared detector. The performances are very promising with very low NETD (below 20mK) in both bands and a spectral crosstalk per pixel of 7.7%. A high operability has been demonstrated in both bands (> 99.5%). The reliability of this technological solution has been evaluated with success. Based on the heritage of Daphnis, a 10μm pitch product, LYNRED envisions a new one using this dual-color technological brick like an add-on onto the FPA. Thanks to the outstanding Modulation Transfer Function performance of the Daphnis, and a specific design of the micro-pattern structure of the filters, the spectral performances should significantly be improved.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years