Research Themes +
Energy Technologies Area (ETA) researchers are continually building on the strong scientific foundation we have developed over the past 50 years. We address the world’s most pressing climate challenges by bringing to market energy-efficient innovations across the buildings, transportation, and industrial sectors. ETA is at the forefront of developing better batteries for electric vehicles; improving the country's aging electrical grid and innovating distributed energy and storage solutions; developing grid-interactive, efficient buildings; and providing the most comprehensive market and data analysis worldwide for renewable technologies like wind and solar.
Strategic Initiatives +
The Energy Technologies Area (ETA) Strategic Plan is the guiding force for our research and development for the next ten years. It clearly charts a path toward clean-energy solutions and focuses on five detailed Strategic Initiatives. The Plan provides an in-depth look at how ETA is accelerating research to provide affordable, clean energy to all while accomplishing deep, economy-wide decarbonization, looking to avoid a rise in global average temperature while simultaneously developing solutions to increase humanity's resilience to extreme weather volatility.
Publications
News +
For media inquiries,
please contact ETA
Interim Communications Manager
Kiran Julin

kjulin@lbl.gov
About Us +
The Energy Technologies Area (ETA) is unique in translating fundamental scientific discoveries into scalable technology adoption. Our approach combines an understanding of the marketplace and the role of state and federal regulation and policies. ETA's research drives real-world, practical results that affect and improve the everyday lives of Americans and those across the globe. Saving energy and battling the Climate Crisis are key to the foundation of our research, which is driven by technoeconomic analysis and in-lab experimentation and discovery.

Photoacoustic spectroscopy and the effect of amplified spontaneous emission

Publication Type

Journal Article

Date Published

10/1992

Authors

Klunder, Gregory L, Robert J Silva, Richard E Russo

DOI

10.1021/ac00044a022

Abstract

Amplified spontaneous emission (ASE), which results from dye fluorescence, causes pulsed dye lasers to produce an output that is spectrally impure. The effect of such an output can create inaccurate analytical information, particularly in absorption and photothermal spectroscopies. The spectral output of laser dye LD-466 has been characterized. ASE was shown to have a broad-band spectral output, 445-495 nm, and was most Intense when lasing was inefficient, on the edges of the dye gain curve. A 10^-3 M Pr³⁺ solution produced similar photoacoustic waveforms from lasing and ASE. Linear calbration curves were generated with the laser tuned to 468 and 495 nm. At 495 nm Pr³⁺ has no absorbance and the photoacoustic signals were produced from ASE.

Photoacoustic spectroscopy and the effect of amplified spontaneous emission

Publication Type

Date Published

Authors

DOI

Abstract

Journal

Volume

Year of Publication

Issue

Notes

Organization