Prof. Menno Schilthuizen Profile

Prof. Menno Schilthuizen

at Naturalis Biodiversity Ctr

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 | 10 September 2019 Presentation

Testing universal chirality in photonic nanostructures of beetles through a large-scale polarimetric survey (Conference Presentation)

Arie van der Meijden, Drisyaman Kashyap, Olivier Burggraaff, Menno Schilthuizen, Frans Snik

Proceedings Volume 11132, 111320D (2019) https://doi.org/10.1117/12.2529541

KEYWORDS: Polarization, Photonic nanostructures, Polarimetry, Photography, Linear filtering, Image segmentation, Optical fibers, RGB color model, Optical filters, Databases

Read Abstract +

Beetles of the families Scarabaeidae and Hybosoridae display left-handed circular polarization due to the Bouligand arrangement of chitin fibers in their cuticle. We intend to verify and understand, or disprove, the apparent and hitherto unexplained universality of left-handed polarization in beetles that exhibit circular polarization. We here report the first results of our ongoing massive survey of one of the largest beetle collections in the world, covering ±10.000 beetle genera. To facilitate the scanning of museum drawers full of beetles, drawers were placed in a purpose-built setup and automatically photographed in RGB colors through polarization filters mounted on a motorized wheel. A total of 6 photographs were taken, through left- and right-handed circular polarization filters, and four linear polarization filters mounted at 0, 90, 45, and -45 degrees. From these, the full Stokes parameters were calculated across the drawer. Images were segmented to obtain polarization parameters representing individual insects. Taxonomic information was obtained for each drawer, by automatically reading the database accession number. Specimens showing circular polarization in taxa for which this has hitherto not been studied are selected to be studied in more detail later, using a custom designed spectropolarimetric integral-field unit. Polarization can then be analyzed as a function of wavelength, resulting in both detailed hyperspectral imaging data and fully resolved Stokes parameters per spectral bin. Our two-stage high-throughput optical screening approach allows for bioprospecting for biophysical properties of valuable and potentially irreplaceable museum specimens, such as type specimens, or specimens of rare or even extinct species.

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