Browsing CSEM Archive by Title
Now showing items 665-684 of 1024
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On a question about quantumness in superradiance
(2017-11) -
On the integration of printed electronics in fluid cartridges and lateral flow devices for point-of-care
(2023-03)The use of non-invasive body fluid testing, such as the analysis of blood and urine, can greatly improve clinical decision making in a plethora of situations. It can support clinical triage in low resource settings that ... -
On-chip integrated zero-RAM frequency modulator for noise reduction and linewidth narrowing in discrete-mode lasers
(2017-06)Wavelength tuneable lasers for 40G and 100G coherent optical communications systems need to meet stringent requirements on narrow linewidth emission across the entire tuning range, with typical values of 300-500 kHz required ... -
Optical beam size effects in spin polarized pumping
(2014-06)We have experimentally and theoretically investigate the effect of optical pump beam size on narrowband spin polarized optical pumping of alkali atom vapor. We developed a six-level model describing narrowband spin polarized ... -
Optical bistability in InGaN-based multisection laser diodes
(2011-05-09)Optical bistability is observed in cw-operating InGaN-based laser diodes including a saturable absorber (SA) section. The dependence of the light-current hysteresis on the SA section length and reverse bias (VSA)(VSA)<math ... -
Optical enhancement of a printed organic tandem solar cell using diffractive nanostructures
(2018)Solution processable organic tandem solar cells offer a promising approach to achieve cost-effective, lightweight and flexible photovoltaics. In order to further enhance the efficiency of optimized organic tandem cells, ... -
Optical monitoring of breathing disorders and sleep phases at the wrist
(2019-10)Sleep quality is a valuable indicator of human health since various pathologies can disturb the normal sleep pattern. Today, the gold-standard measurement for sleep analysis is polysomnography. It provides a full picture ... -
Optical security features and filters using plasmonic nanostructures
(2017)Plasmonics involves the interaction of light with metallic structures at the nanoscale, which enables in particular the generation of strong reflection and absorption effects in the visible and near infrared range. The ... -
Optical wrist-worn device for sleep monitoring
(2018)This paper presents and clinically validates a new method to accurately classify sleep phases within a wrist-worn device (e.g., smartwatch, ?tnessband). The method combines inertial and optical sensors to compute the ... -
Optically pumped long external cavity InGaN/GaN surface-emitting laser with injection seeding from a planar microcavity
(2012-10-01)Optically pumped InGaN/GaN quantum well vertical-external-cavity surface-emitting laser emitting at 420?nm has been realized. Lasing at external cavity lengths of up to 50?mm is demonstrated, making integration of practical ...