Results 121 to 130 of about 398,926 (227)

Time-variant partial directed coherence for analysing connectivity: a methodological study [PDF]

open access: bronze, 2013
Lutz Leistritz   +6 more
openalex   +1 more source

Partial Coherence Laser Interferometry in Highly Myopic versus Emmetropic Eyes

open access: yesJournal of Ophthalmic & Vision Research, 2014
Purpose: To investigate the reliability of partial coherence laser interferometry for optical biometry in highly myopic eyes. Methods: Axial length measurements by the IOLMaster (Carl Zeiss Meditec, Germany) with signal-to-noise ratio (SNR) ≥2 were ...
Gernot F Roessler   +6 more
doaj  

Partial coherence and multi-channel vortices enhance high-security free-space optical communication

open access: yesCommunications Physics
Vortex beams (VBs) shift keying is a digital communication technique that encodes data by rapidly switching or shifting the orbital angular momentum (OAM) state of a light beam, improving the performance of free-space optical communication.
Yanghong Li   +4 more
doaj   +1 more source

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