Matches in SemOpenAlex for { <https://semopenalex.org/work/W2499763432> ?p ?o ?g. }
Showing items 1 to 80 of
80
with 100 items per page.
- W2499763432 endingPage "134" @default.
- W2499763432 startingPage "107" @default.
- W2499763432 abstract "Earlier we discussed examples of adaptive phase correction for laser beams and images formed in turbulent atmospheres. Thermal blooming, along with turbulent distortions, is a serious factor that limits concentration of the energy of laser beams on an object. In some situations, in particular, when using an IR laser, thermal blooming is almost the sole obstacle to achieving a high level of intensity on a target.Various methods are used to make the transfer of energy of an optical beam more efficient. Relatively simple methods are the optimization of power, intensity distribution, focal length [1], and time conditions of radiation. The methods of a priori (programmed) phase correction (APC), phase conjugation, and wavefront reversal are more complex.The first two sections in this chapter are devoted to the capabilities of optimization and a priori phase correction on vertical paths with allowance made for the altitude profile of the wind vector and the finite spatial resolution of the corrector in an adaptive system applied to beams with different initial intensity distributions in the cross section. The problem is considered in the approximation of a phase screen, and this allows us to estimate the correction efficiency for extremely wide beams on vertical paths.Note that the effect of the initial intensity distribution in the beam cross section on the concentration of energy in the receiving aperture has been considered in a number of papers. For example, the problem of thermal blooming of a scanning beam was considered in Ref. [2] and it was shown that the homogeneous (like a super-Gaussian) intensity distribution gives better results than the Gaussian beam. Various beams having on-axis null and propagating along a homogeneous path without scanning were considered in Ref. [3]. It was shown that in this situation the non-Gaussian intensity distribution gives no significant gain. Nevertheless, for vertical paths such beams can give a marked gain [4].The peculiarities of thermal blooming for hyper-Gaussian beams were considered in Ref. [5]. In other papers, square (hyper-Gaussian) and Gaussian beams were compared for a homogeneous (horizontal) path [6]. However, so far there has been no systematic study of thermal blooming for beams of different types propagating along a vertical path." @default.
- W2499763432 created "2016-08-23" @default.
- W2499763432 creator A5071381336 @default.
- W2499763432 creator A5075925638 @default.
- W2499763432 date "2009-10-22" @default.
- W2499763432 modified "2023-09-24" @default.
- W2499763432 title "Minimization and Phase Correction of Thermal Blooming of High-Power Beams" @default.
- W2499763432 doi "https://doi.org/10.1117/3.452443.ch4" @default.
- W2499763432 hasPublicationYear "2009" @default.
- W2499763432 type Work @default.
- W2499763432 sameAs 2499763432 @default.
- W2499763432 citedByCount "0" @default.
- W2499763432 crossrefType "book-chapter" @default.
- W2499763432 hasAuthorship W2499763432A5071381336 @default.
- W2499763432 hasAuthorship W2499763432A5075925638 @default.
- W2499763432 hasConcept C115171683 @default.
- W2499763432 hasConcept C120665830 @default.
- W2499763432 hasConcept C121332964 @default.
- W2499763432 hasConcept C132771110 @default.
- W2499763432 hasConcept C153294291 @default.
- W2499763432 hasConcept C163258240 @default.
- W2499763432 hasConcept C165699331 @default.
- W2499763432 hasConcept C168834538 @default.
- W2499763432 hasConcept C187151468 @default.
- W2499763432 hasConcept C204530211 @default.
- W2499763432 hasConcept C24890656 @default.
- W2499763432 hasConcept C2984025587 @default.
- W2499763432 hasConcept C44280652 @default.
- W2499763432 hasConcept C520434653 @default.
- W2499763432 hasConcept C62520636 @default.
- W2499763432 hasConcept C78336883 @default.
- W2499763432 hasConcept C90416638 @default.
- W2499763432 hasConcept C93038891 @default.
- W2499763432 hasConceptScore W2499763432C115171683 @default.
- W2499763432 hasConceptScore W2499763432C120665830 @default.
- W2499763432 hasConceptScore W2499763432C121332964 @default.
- W2499763432 hasConceptScore W2499763432C132771110 @default.
- W2499763432 hasConceptScore W2499763432C153294291 @default.
- W2499763432 hasConceptScore W2499763432C163258240 @default.
- W2499763432 hasConceptScore W2499763432C165699331 @default.
- W2499763432 hasConceptScore W2499763432C168834538 @default.
- W2499763432 hasConceptScore W2499763432C187151468 @default.
- W2499763432 hasConceptScore W2499763432C204530211 @default.
- W2499763432 hasConceptScore W2499763432C24890656 @default.
- W2499763432 hasConceptScore W2499763432C2984025587 @default.
- W2499763432 hasConceptScore W2499763432C44280652 @default.
- W2499763432 hasConceptScore W2499763432C520434653 @default.
- W2499763432 hasConceptScore W2499763432C62520636 @default.
- W2499763432 hasConceptScore W2499763432C78336883 @default.
- W2499763432 hasConceptScore W2499763432C90416638 @default.
- W2499763432 hasConceptScore W2499763432C93038891 @default.
- W2499763432 hasLocation W24997634321 @default.
- W2499763432 hasOpenAccess W2499763432 @default.
- W2499763432 hasPrimaryLocation W24997634321 @default.
- W2499763432 hasRelatedWork W1606877585 @default.
- W2499763432 hasRelatedWork W1783649218 @default.
- W2499763432 hasRelatedWork W1985699321 @default.
- W2499763432 hasRelatedWork W1998446730 @default.
- W2499763432 hasRelatedWork W2000317502 @default.
- W2499763432 hasRelatedWork W2006908429 @default.
- W2499763432 hasRelatedWork W2015331824 @default.
- W2499763432 hasRelatedWork W2015646267 @default.
- W2499763432 hasRelatedWork W2028681015 @default.
- W2499763432 hasRelatedWork W2029930079 @default.
- W2499763432 hasRelatedWork W2149876228 @default.
- W2499763432 hasRelatedWork W2378953721 @default.
- W2499763432 hasRelatedWork W2382569534 @default.
- W2499763432 hasRelatedWork W2766149548 @default.
- W2499763432 hasRelatedWork W2772556891 @default.
- W2499763432 hasRelatedWork W3008158629 @default.
- W2499763432 hasRelatedWork W3037706799 @default.
- W2499763432 hasRelatedWork W3096441748 @default.
- W2499763432 hasRelatedWork W577929597 @default.
- W2499763432 hasRelatedWork W169649496 @default.
- W2499763432 isParatext "false" @default.
- W2499763432 isRetracted "false" @default.
- W2499763432 magId "2499763432" @default.
- W2499763432 workType "book-chapter" @default.