Results 41 to 50 of about 349,357 (303)
Near ultraviolet photonic integrated lasers based on silicon nitride
APL Photonics, 2022 Low phase noise lasers based on the combination of III–V semiconductors and silicon photonics are well established in the near-infrared spectral regime.
Anat Siddharth +12 more
doaj +1 more source
Thermal noises and noise compensation in high-reflection multilayer coating [PDF]
, 2008 Thermal fluctuations of different origin in the substrate and in the coating of optical mirrors produce phase noise in the reflected wave. This noise determines the ultimate stabilization capability of high-Q cavities used as a reference system.
Agresti +26 more
core +1 more source
Two-mode beat phase noise of actively modelocked lasers
Optics Express, 2005 An analytic expression for the phase noise spectrum is estimated when two arbitrary longitudinal modes are selected for beating from the output of an actively mode-locked laser. A separate experiment confirmed the theory qualitatively. It was found that two-mode beating possesses more phase noise than the beating involving the entire mode spectrum ...
Gee, Sangyoun +3 more
openaire +3 more sources
Sensors, 2023 Laser heterodyne detection (LHD) is a key velocimetry technique that provides better accuracy and sensitivity than direct laser detection. However, random phase noise can be introduced by the surface topography of the moving target undulation or ...
Ce Guan +3 more
doaj +1 more source
Remark on laser linewidth hazard in opto-mechanical cooling
, 2008 I discuss the robustness of the pumped cavity dynamics against phase diffusion of the laser and conclude that opto-mechanical cooling has extreme sensitivity compared to laser cooling of atoms. Certain proposals of ground state opto-mechanical cooling by
Diósi, Lajos
core +1 more source
Dynamical decoupling of laser phase noise in compound atomic clocks [PDF]
Communications Physics, 2020 AbstractThe frequency stability of many optical atomic clocks is limited by the coherence of their local oscillator. Here, we present a measurement protocol that overcomes the laser coherence limit. It relies on engineered dynamical decoupling of laser phase noise and near-synchronous interrogation of two clocks.
Sören Dörscher +6 more
openaire +2 more sources
AAA+ protein unfoldases—the Moirai of the proteome
FEBS Letters, EarlyView.AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley +1 more source
Phase-noise limitations in continuous-variable quantum key distribution with homodyne detection [PDF]
, 2017 In continuous-variables quantum key distribution with coherent states, the advantage of performing the detection by using standard telecoms components is counterbalanced by the lack of a stable phase reference in homodyne detection due to the complexity ...
Corvaja, Roberto
core +1 more source
Molecular Oncology, EarlyView.Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff +11 more
wiley +1 more source
Sub-60-fs Timing Jitter of a SESAM Modelocked VECSEL
IEEE Photonics Journal, 2013 We present noise measurements of a pulse train emitted from an actively stabilized semiconductor-saturable-absorber-mirror (SESAM) modelocked vertical external cavity surface emitting laser (VECSEL).
V. J. Wittwer +6 more
doaj +1 more source