Topics in this Issue
Picosecond- and nanosecond-duration laser pulses are used for two-photon-resonant laser-induced fluorescence detection of atomic hydrogen in methane and hydrogen flames At high laser fluence, measurements are corrupted by interference from photolytic generation of atomic hydrogen from other flame constituents and/or stimulated emission (SE). For many flames, excitation with picosecond pulses produces significantly larger interference-free signal because of reduced photodissociation, but the optimum laser pulse width generally depends on the flame composition and geometry. For further details, see the paper by Kulatilaka et al., pp. 4672-4683.(Graphics design by Daniel L. Strong, Sandia National Laboratories.)
- Mar 12 2015 : Optica Research - Engineers Create Chameleon-like Artificial 'Skin’ That Shifts Color on Demand
- Mar 05 2015 : Optical Materials Express Research - New Flexible Films for Touch Screen Applications Achieve Longer Lasting Display
- Jan 26 2015 : Optica Research - Entanglement on a Chip: Breakthrough Promises Secure Communications and Faster Computers
- Jan 23 2015 : OSA Welcomes New Editor of Applied Optics
- Real-time, high-accuracy 3D imaging and shape measurement
- Two-dimensional continuous wavelet transform for phase...
- Parameter discretization in two-dimensional continuous...
- Optical properties of metallic films for vertical-cavity...
- Optical properties of the metals Al, Co, Cu, Au, Fe, Pb,...
- Phase retrieval algorithms: a comparison
- Light and color in the open air: Introduction to the...
- Photographic observation of a natural fifth-order rainbow
- Optical constants of Cu, Ag, and Au revisited
- Laser Beams and Resonators