Toward street detection of amphetamines

A portable, advanced IR sensor in a hollow fiber matched to a silicon-micromachined fast gas chromatography column can analyze illegal stimulants and precursors with nanogram-level sensitivity.

 

Field chemical sensing with LEDs

Monitoring of environmental nitrous acid and nitrogen dioxide at a suburban site is achieved using highly sensitive LED-based incoherent broadband cavity-enhanced absorption spectroscopy.

  

 Pushing out disorder improves polymer solar cell efficiency

The performance of polymer solar cells can be greatly improved by using nanoimprint lithography to create a highly ordered, nanostructured photoactive layer.

 

 

A nanopyramid structure for monolithic white-light LEDs

LEDs built from nanopyramid arrays can deliver high luminescence efficiency over a very wide spectral range owing to reduced defects, relaxed strain, and a suppressed piezoelectric field.

 

A camera with capacity of one million gigapixels per second

Multiscale cameras using compressed image data can reach limits on diffraction and quantum information.

 

 

Terahertz multiplex imaging with reconfigurable masks

Terahertz spatial light modulators composed of metamaterial arrays enable novel imaging techniques, offering the potential for improved image resolution, acquisition time, and spectral information.

 

Three-dimensional dancing bear shows the way to practical holographic display

A dynamic holographic display of full-color, full-parallax 3D objects was demonstrated using physical and optical scan tiling techniques, enhanced by a newly proposed color mixing method.

Plasmonic and dielectric enhancement of solar cells

Experimental, computational, and analytic advances in nanophotonic light trapping promise the next generation of high-efficiency, low-cost photovoltaics.

 

Compressive sensing for imaging spatial entanglement 

Compressive sensing provides a practical method for characterizing correlations between pairs of spatially entangled photons at high dimensions.

 

A spherical color model is intuitively simple and perceptually harmonious

The three coordinate components of a properly rotated spherical coordinate system perfectly describe the perceptual attributes of a color.

 

Progress in hybrid-silicon photonic integrated circuit technology

Adding III-V materials to the silicon-on-insulator platform enables increasingly complex devices, making it well-positioned to address energy-efficient, compact, and low-cost photonic applications.

Proton-implantation technique for high-power laser light

An arrayed configuration with proton-implanted current apertures creates the potential for more reliable, higher-powered vertical-cavity surface-emitting lasers.

 

 

 

Photonics West 2013 Program