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Imaging substrate-mediated interactions

Article Abstract:

Scanning tunneling microscope observations indicate that perturbations caused by surface defects affect the structure and dynamics for benzene on Cu(111). The mechanism of the interactions and their role in the nanometer-scale mechanics of film growth and catalysis are discussed.

Usage, Surfaces (Materials), Scanning tunneling microscopy, Surfaces (Technology)

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Sunfish shows the way through the fog

Article Abstract:

Researchers studying the retina of the green sunfish (Lepomis cyanellus) believe they have determined how the fish can see clearly in water containing debris that scatters light. The fish's strategy, dubbed 'polarization difference imaging' may be used to improve cameras.

Physiological aspects, Sunfishes, Sunfishes (Centrarchidae), Optics, Physiological, Physiological optics

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Helical beams give particles a whirl

Article Abstract:

Researchers in the UK and Australia have developed a new type of sculpted laser beam called an optical spanner that may have applications in nanotechnology. The spanner can manipulate the speed and direction of particles, using less intense beams than optical tweezers.

Innovations, Laser beams, Particles, Optical properties, Particulate matter, Optical instruments

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