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TOPICAL COLLECTIONS

Understanding Optical Effects in Biology: From Vision to Color

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Anna Shneidman

Anna Shneidman

John A. Paulson School of Engineering and Applied Sciences

Anna Shneidman is currently a Research Associate in the Biomineralization and Biomimetics Lab at Harvard University. She received her BS in Chemistry and Physics in 2009 and her PhD in Chemical Physics in 2016, at Harvard. Her PhD research was conducted in the Laboratory of Nanoscale Optics, during which time she investigated several topics including magnetic field imaging with luminescent point defects in diamond, tuning the optical properties of self-assembled 3D photonic crystals known as inverse opals, and designing and creating polymer photonic structures via the roll-to-roll process in collaboration with Nano Terra, Inc. As a Postdoctoral Fellow and Research Associate, Anna is investigating multifunctional bio-inspired materials with a focus on optical effects. She has continued to work with inverse opals for a wide variety of applications; and has collaborated with colleagues within the lab to produce and study light-responsive hydrogels and liquid crystal elastomers. Together with members of Harvard’s Organismic and Evolutionary Department, Anna has also helped unravel key optical features responsible for peacock spiders’ stunning visual displays. Anna is active in science outreach and community building. She co-led Harvard School of Engineering and Applied Science’s chapter of the Photonics Club, part of the Optica (formerly the Optical Society); organizes and participates in a variety of outreach events for children, students, teachers, and families; and is a member of the Harvard Materials Research Science and Engineering Center (MRSEC). Anna was Managing Director of Harvard’s Kavli Institute for Bionano Science and Technology, fostering multi-disciplinary and inter-departmental collaborations with a focus on fundamental insights into biology’s design principles as well as bio-inspired innovations. She also played an active role in the development of the startup company Metalmark Innovations, Inc., which is commercializing bio-inspired hierarchically structured catalytic materials for air purification.

Collection Overview

Nature exhibits a plethora of fascinating optical structures and effects. These range from lenses that focus light, enabling vision, to photonic crystals and other intricate architectures that scatter light, producing brilliant structural colors, among other effects. Studying such natural systems deepens our understanding of the world around us. It guides the development of bio-inspired technologies within optics and beyond, allowing us to address global challenges through the design of materials and their interaction with the electromagnetic spectrum. 

This Methods Compendium brings together researchers from various disciplines that shine a light (or electrons) onto optical structures found in nature to make the techniques more broadly accessible. The methods include electron and optical microscopes, a variety of spectroscopic techniques for the characterization of either the materials composition (e.g., infrared and Raman spectroscopies) or optical behavior (e.g., visible light reflection/transmission/absorption spectroscopy), and a variety of in vivo and in vitro investigations elucidate such structures' morphogenesis.

Together, these methods can help elucidate the formation, geometry, composition, and optical effects of natural optical structures and can be valuable to researchers from different disciplines within and beyond optics, materials science, evolutionary biology, behavioral sciences, and more.

 

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An Intra-Tissue Radiometry Microprobe for Measuring Radiance <em>In Situ</em> in Living Tissue
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An Intra-Tissue Radiometry Microprobe for Measuring Radiance In Situ in Living Tissue

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2023

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