Abstract
Nonlinear optical imaging is a powerful method for observing bulk and interfacial phenomena in time and space. Here, we present a step-by-step description of how to carry out second harmonic generation imaging with a kHz amplifier laser system and demonstrate its applicability for SHG microscopy studies of highly size-resolved colloidal CdSe quantum dots having radii of 1-2 nm deposited on glass slides. It is found that not all quantum dots are SHG active, which suggests that environmental effects and particle distributions are important for SHG activity of quantum dots.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 57-66 |
| Number of pages | 10 |
| Journal | Optical Materials Express |
| Volume | 1 |
| Issue number | 1 |
| DOIs | |
| State | Published - May 1 2011 |
Funding
Patrick L. Hayes acknowledges a scholarship from Achievement Rewards for College Scientists (ARCS), and Schlumberger Oilfield Chemical Products, LLC. Mark D. Peterson acknowledges support from the Northwestern Initiative for Sustainability and Energy at Northwestern (ISEN). We gratefully acknowledge an EAGER grant from the Experimental Physical Chemistry program in the Division of Chemistry under grant #CHE-0937460 to FMG and a Department of Energy Early Career Research Award (DE-SC0003998) to EAW. FMG acknowledges support from an Irving M. Klotz professorship. The TEM work was performed in the EPIC facility of NUANCE Center and the XPS work was performed in the KECK-II facility of NUANCE Center at Northwestern University. NUANCE Center is supported by NSF-NSEC, NSF-MRSEC, Keck Foundation, the State of Illinois, and Northwestern University.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials