Tags: optical properties

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  1. Fusing Light With Heat: Polaritons for Nanoscale Thermal Transport & Sensing

    07 Oct 2021 | | Contributor(s):: Thomas Beechem

    Light exhibits a wave nature.  Phonons do too.  Within the infrared portion of the spectrum, these differing “waves” can interact to form hybrid energy carriers called polaritons.  Polaritons, in turn, provide fundamental advantages for optical functionality and...

  2. Machine Learning Framework for Impurity Level Prediction in Semiconductors

    15 Dec 2020 | | Contributor(s):: Arun Kumar Mannodi Kanakkithodi

    In this work, we perform screening of functional atomic impurities in Cd-chalcogenide semiconductors using high-throughput computations and machine learning.

  3. Spectrophotometry of Metal Nanoparticles

    16 Jun 2020 | | Contributor(s):: Chris Kaus, James J Marti, NNCI Nano

    This activity has students chemically synthesize gold and silver nanoparticles, measure the spectra of light absorption and transmission by these particles, compare these spectra to those of known-sized particles, and then estimate the size distribution of the particles they have made. By using...

  4. Interferencia de Capas Finas (Thin Films)

    24 Apr 2020 | | Contributor(s):: Nano-Link Center for Nanotechnology Education, Deb Newberry, Christopher Kumm, Jim Marti (editor), Rodfal A. Rodríguez (editor), María T. Rivera (editor)

    En este módulo, los estudiantes aprenderán sobre las propiedades ópticas de las capas finas. Realizarán un experimento en el que aplicarán una capa fina sobre un pedazo de papel de cartulina o de construcción. De esta forma podrán observar...

  5. Understanding Waveguides: Light at the Nanoscale

    13 Feb 2020 | | Contributor(s):: Marilyn Garza, NNCI Nano

    There are three lessons for this activity that help students understand how light can travel through a waveguide for communication purposes. Students will first explore the angle of refraction. Next they will create a gelatin waveguide to explore issues associated with light and waveguides....

  6. Quantum Dots: Real-world Particles in a Box

    15 Jan 2020 | | Contributor(s):: Joyce Allen, NNCI Nano

    The purpose of this activity is to show that nanosize particles of a given substance often exhibit different properties and behavior than macro or micro size particles of the same material. The property studied in this activity is the absorption and reflection of light which is based on energy...

  7. Golden Opportunities: Gold Nanoparticles for Biomedical Applications

    14 Jan 2020 | | Contributor(s):: Catherine J. Murphy

    In this talk I will discuss how these nanoparticles are prepared, how their surface chemistry can be tuned, how apparent cytotoxicity can be traced back to reagents in the synthesis rather than the particles per se, how protein orientation can be controlled on their surfaces, how cells respond...

  8. CDs and DVDs as Diffraction Gratings

    13 Jan 2020 | | Contributor(s):: Rama Balachandran, Karen Porter Davis, NNCI Nano

    The objective of this lab is to compare the diffraction behavior of light waves between a CD and DVD. CDs and DVDs contain regularly spaced micrometer sized features which can act like a diffraction grating. Using commercial electronic storage devices like CDs and DVDs as gratings rather than...

  9. Refraction of Light: Forensics Lab

    06 Jan 2020 | | Contributor(s):: Karen Porter-Davis, NNCI Nano

    This lesson uses forensic science investigations to help students understand the refraction of light. Using The Marching Band Analogy, the students firsts “experience” how wavelengths of light can slow and bend.

  10. Light Extraction by Changing Composition of Material

    06 Jan 2020 | | Contributor(s):: Sidhu Rano, NNCI Nano

    This activity has been designed to have students explore light emitting diodes (LED) and the importance of index of refraction in improving LED efficiency. This activity investigates the tune-ability of a polymer’s index of refraction by using a macromodel LED.

  11. 3 min Research Talk: Plasmonic Core-Multishell Nanowires for Optical Applications

    26 Sep 2019 | | Contributor(s):: Raheem Carless

    ED lights and technology are being used more often in today’s society. Compared to traditional illumination they are far more reliable and efficient, in the sense that they last longer, are environmentally friendly, and most importantly, they reduce energy waste.

  12. How Plasmonic Materials Make Light Work at Nanoscale

    16 Aug 2019 | | Contributor(s):: Alexandra Boltasseva

  13. 2D material reflectance spectra

    10 Jul 2019 | | Contributor(s):: Vu Dang Nguyen, Yunsu Park, Darren K Adams (editor), Hayden Taylor

    Simulation of the reflectance spectra of 2D materials and image analysis for thickness identification

  14. MSEN 201 Lecture 19.1: Optical Properties - Optical Absorption in Materials

    18 Feb 2019 | | Contributor(s):: Patrick J Shamberger

  15. MSEN 201 Lecture 19.2: Optical Properties - Optical Emission in Materials

    18 Feb 2019 | | Contributor(s):: Patrick J Shamberger

  16. Emerging Materials for Nanophotonics and Plasmonics: Roads Ahead

    01 Nov 2018 | | Contributor(s):: Alexandra Boltasseva

    In this presentation, I will discuss emerging material platforms including transparent conducting oxides, transition metal nitrides, oxides and carbides as well as two- and quasi-two-dimensional materials for future practical optical components across the fields of on-chip optics and...

  17. Thin Films

    27 Aug 2018 | | Contributor(s):: NISE Net, Deb Newberry (editor), Christopher Lee Kumm (editor), James J Marti (editor), Nano Link

    In this module, students will learn about the optical properties of thin films. Students will perform an experiment where they will apply a thin film to a piece of card stock paper. The students can then observe the optical properties of the thin film. This resource contains multiple documents...

  18. jesus alexis Gonzalez

    https://nanohub.org/members/161639

  19. Making a Liquid Crystal Thermometer

    09 Jan 2017 | | Contributor(s):: Rano Sidhu, NNCI Nano

    Liquid crystals are matter that has properties between those of a liquid and a solid. Liquid crystals may flow like a liquid but have crystals like a solid.colors of the objects are Color is the outcome of various light properties: absorption, refraction, or reflection. In the case of liquid...

  20. Synthesis and Stability of Silver Nanoparticles

    01 Dec 2016 | | Contributor(s):: Brandi Childress, NNCI Nano

     The purpose of this experiment is to conduct synthesis of silver nanoplates and explore their shape stability that affects optical property (referred to as localized surface plasmon resonance (LSPR). Students will learn about the differences in physical properties and behavior at the...