Events

T3.6 Transient Lattice Response Upon Photoexcitation in CuInSe2 Nanocrystals Samantha Harvey (Northwestern University) CuInSe2 nanocrystals (CISe NCs) offer promise for optoelectronics such as thin film photovoltaics and printed circuits owing to near-infrared bandgap, low toxicity, and scalable synthesis. Additive manufacturing methods such as photonic curing to produce sintering of NCs offers routes to improved performance, …

T3.5 Reconfigurable Lattice-Resonance Metalenses on Coupled Nanoparticles Jingtian Hu (Northwestern University) Compact lensing components are crucial for miniaturized imaging systems that can be integrated into portable electronic and optical devices. Metalenses—rationally designed surfaces with nanoscale building blocks—have accomplished subwavelength imaging and can correct for spherical/chromatic aberrations. However, existing metalenses have fixed structures once fabricated and …

T3.4 Spectroscopic Single-molecule Localization Microscopy (sSMLM) Hao F. Zhang (Northwestern University) Traditional single molecule localization microscopy analyses the spatial distributions of photons emitted by individual molecules to reconstruct super-resolution optical images. To further push the envelope of this imaging technology, we developed spectroscopic single molecule localization microscopy (sSMLM) that is capable of capturing the inherent …

T3.3 Towards Laser Cooling in Rare Earth Doped Silicate Glass Fibers Peter D. Dragic (University of Illinois at Urbana-Champaign) Laser cooling in solids can be achieved by pumping a rare earth (RE) element at an energy less than its average spontaneous emission energy. Phonons then can be extracted from the host material; under proper conditions …

T3.2 Clear Optically Matched Panoramic Access Channel Technique (COMPACT) for Large Volume Deep Brain Imaging Meng Cui (Purdue University) With the advance of function molecular indicators and actuators, neurophotonics has become a powerful paradigm for discovering the principle of brain function. However, a major limitation of employing light to study mammalian brain is the limited …

T3.1 Ultrafast Compressed Imaging Microscopy: Redefining the Speed Limit of Microscopy Imaging Liang Gao (University of Illinois at Urbana-Champaign) In this talk, I will present our recent development of an ultrafast compressed imaging microscope which can image transient biological dynamics at an unprecedented speed up to 100 billion fps. Its application in high-speed fluorescence lifetime …

T2.5 Effects of Nanoparticle Dimensionality on the Optoelectronic Properties of CdSe Nanoplatelets Alexandra Brumberg (Northwestern University), Richard Schaller (Northwestern University) Recent advances in nanoparticle synthesis have presented scientists with the opportunity to control not only nanoparticle size and composition, but also morphology and dimensionality. Among these advances, colloidal, two-dimensional nanocrystals known as nanoplatelets have emerged, …

T2.4 High Carrier Mobility in HgTe Quantum Dot Solids Improves Mid-IR Photodetectors Menglu Chen (University of Chicago) Improving charge mobility in quantum dot (QD) films is important for device performance, where high mobility helps to improve efficiency of photodetectors, solar cells, and LEDs. However, these applications also require preserving well-defined quantum dot electronic states and …

T2.3 Bright and Stable SERS Nanoparticle Tags with Locked Hydrophobic Inner Domains Ruiyang Xue (University of Illinois at Urbana-Champaign), Li Lin (University of Illinois at Urbana-Champaign), Lucas Lane (Nanjing University), Subhendu Pandit (University of Illinois at Urbana-Champaign), Shuming Nie (University of Illinois at Urbana-Champaign) Surface enhance Raman scattering (SERS) is an ultra-sensitive spectroscopic technique induced …

T2.2 Direct Optical Lithography of Functional Inorganic Nanomaterials Yuanyuan Wang (University of Chicago), Jia-Ahn Pan (University of Chicago), Dmitri V. Talapin (University of Chicago) Photolithograph is an important manufacturing process that relies on using organic or polymer photoresists.  Here, we demonstrate a general technique named DOLFIN to prepare photosensitive inks and direct pattern inorganic nanocrystals …