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Scanning Optical Probe Thermometry Using an Optically Trapped Erbium Oxide Nanoparticle

Johnson, Samuel C

Abstract Details

2015, Bachelor of Science (BS), Ohio University, Chemistry.
The thermal decay of optically excited gold nanoparticles has been examined using a femtosecond transient analyzer. From this, we observe a two component exponential thermal decay whose fast component is attributed to substrate decay and slow component attributed to solution decay. Additionally, a scanning optical probe technique utilizing an optically trapped erbium oxide nanoparticle has been developed that can thermally image a substrate with high resolution. This technique has been used to thermally image optically irradiated gold nanoparticles spin coated on a glass substrate. This technique has also been used to study nucleation events that occur under heating from irradiated gold nanoparticles. Here, we see the temperature inside the nucleation envelope rises to the melting point of bulk gold (~1330 K). This extreme temperature is attributed to the loss of the gold-to-solution thermal dissipation pathway, due to the surrounding insulating vapor envelope.
Hugh Richardson, Ph.D. (Advisor)
88 p.

Recommended Citations

Citations

  • Johnson, S. C. (2015). Scanning Optical Probe Thermometry Using an Optically Trapped Erbium Oxide Nanoparticle [Undergraduate thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1429811168

    APA Style (7th edition)

  • Johnson, Samuel. Scanning Optical Probe Thermometry Using an Optically Trapped Erbium Oxide Nanoparticle . 2015. Ohio University, Undergraduate thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1429811168.

    MLA Style (8th edition)

  • Johnson, Samuel. "Scanning Optical Probe Thermometry Using an Optically Trapped Erbium Oxide Nanoparticle ." Undergraduate thesis, Ohio University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1429811168

    Chicago Manual of Style (17th edition)