Silicon single-crystal cryogenic optical resonator

Magneto-Optical properties of GaP single crystal

The temperature dependence of magneto-optical and magneto-photoconductivity measurements were carried out in the range of (200-330) K. A home made optical cryostat was used for the measurements. The measured room temperature value of the energy gap was found to be 2.211 eV. The temperature coefficient of energy gap was found to be -5.48×10-4 eV/K obtained by the optical absorption method and -4...

Silicon optomechanical crystal resonator at millikelvin temperatures

Seán M. Meenehan,1 Justin D. Cohen,1 Simon Gröblacher,1,2 Jeff T. Hill,1 Amir H. Safavi-Naeini,1 Markus Aspelmeyer,2 and Oskar Painter1,* 1Institute for Quantum Information and Matter and Thomas J. Watson, Sr., Laboratory of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA 2Vienna Center for Quantum Science and Technology (VCQ), Faculty of Physics, University...

Mesoporous silicon photonic crystal microparticles: towards single-cell optical biosensors.

In this paper we demonstrate the possibility of modifying porous silicon (PSi) particles with surface chemistry and recognition molecules (antibodies) such that these devices could potentially be used for single-cell identification or sensing. This is achieved by modifying PSi Rugate filters via hydrosilylation with surface chemistry that serves firstly, to protect the silicon surfaces from oxi...

Photonic Crystal Ring Resonator Based Optical Filters

Comparison of silicon photonic crystal resonator designs for optical trapping of nanomaterials.

The use of silicon photonic devices for optical manipulation has recently enabled the direct handling of objects like nucleic acids and nanoparticles that are much smaller than could previously be trapped using traditional laser tweezers. The ability to manipulate even smaller matter however requires the development of photonic structures with even stronger trapping potentials. In this work we ...