Concept
Émission stimulée
Publications associées (235)
Nanowire assembly, e.g. for optical probes, comprises optically trapping high aspect ratio semiconductor nanowire with infrared single-beam optical trap and attaching nanowire to organic or inorganic structure
NOVELTY - A nanowire assembly method comprises optically trapping a semiconductor nanowire with an infrared single-beam optical trap and attaching the nanowire to an organic or inorganic structure by laser fusing. The nanowire is further trapped in a fluid ...
2007Optical characterisation of single quantum dots emitting at 1300nm
This thesis deals with the optical characterization of single quantum dot devices emitting at 1300nm. Thanks to the development and optimization of the growth technique we were able to achieve at the same time emission at 1300nm and ultra low QD densities. ...
EPFL20072.5 lambda microcavity InGaN light-emitting diodes fabricated by a selective dry-etch thinning process
The authors report on InGaN microcavity light-emitting diodes with an effective thickness of similar to 450 nm at the emission wavelength of similar to 415 nm. The starting material for the flip-chip laser lift-off device is a structure with an active regi ...
Amer Inst Physics2007Direct monitoring of the excited state population in biased SiGe valence band quantum wells by femtosecond resolved photocurrent experiments
The authors report a direct measurement of the optical phonon intersubband hole relaxation time in a SiGe heterostructure and a quantitative determination of hole relaxation under electrically active conditions. The results were obtained by femtosecond res ...
2006A comparative study of VOCs in Singapore and European office buildings
This study compares the characteristics of volatile organic compounds (VOCs) and the associated factors affecting them within European (EU) and Singapore buildings. Generally, concentrations of target VOCs determined in the two types of buildings were with ...
2006Ultrafast photonic crystal nanocavity laser
Spontaneous emission is not inherent to an emitter, but rather depends on its electromagnetic environment. In a microcavity, the spontaneous emission rate can be greatly enhanced compared with that in free space. This so-called Purcell effect can dramatica ...
2006