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2,111 results

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Page 1
Excitonic Bloch-Siegert shift in CsPbI(3) perovskite quantum dots.
Li Y, Han Y, Liang W, Zhang B, Li Y, Liu Y, Yang Y, Wu K, Zhu J. Li Y, et al. Nat Commun. 2022 Sep 22;13(1):5559. doi: 10.1038/s41467-022-33314-9. Nat Commun. 2022. PMID: 36138041 Free PMC article.
Coherent interaction between matter and light field induces both optical Stark effect and Bloch-Siegert shift. Observing the latter has been historically challenging, because it is weak and is often accompanied by a much stronger Stark shift. Herein, by controlling the lig …
Coherent interaction between matter and light field induces both optical Stark effect and Bloch-Siegert shift. Observing the latter h …
Average-atom model with Siegert states.
Starrett CE, Shaffer NR. Starrett CE, et al. Phys Rev E. 2023 Feb;107(2-2):025204. doi: 10.1103/PhysRevE.107.025204. Phys Rev E. 2023. PMID: 36932529
This is a challenging numerical and algorithmic problem in large part due to the continuum of free states which is relatively expensive and difficult to resolve accurately. Siegert states are an appealing alternative. They form a complete eigenbasis with a purely discrete …
This is a challenging numerical and algorithmic problem in large part due to the continuum of free states which is relatively expensive and …
Selective excitation localized by the Bloch-Siegert shift and a B1+ gradient.
Martin JB, Srinivas SA, Vaughn CE, Sun H, Griswold MA, Grissom WA. Martin JB, et al. Magn Reson Med. 2022 Sep;88(3):1081-1097. doi: 10.1002/mrm.29271. Epub 2022 Apr 25. Magn Reson Med. 2022. PMID: 35468232 Free PMC article.
PURPOSE: To perform B1+ -selective excitation using the Bloch-Siegert shift for spatial localization. THEORY AND METHODS: A B1+ -selective excitation is produced by an radiofrequency (RF) pulse consisting of two summed component pulses: an off-resonant pulse that induces a …
PURPOSE: To perform B1+ -selective excitation using the Bloch-Siegert shift for spatial localization. THEORY AND METHODS: A B1+ -sele …
Bloch-Siegert B1+-mapping for human cardiac (31) P-MRS at 7 Tesla.
Clarke WT, Robson MD, Rodgers CT. Clarke WT, et al. Magn Reson Med. 2016 Oct;76(4):1047-58. doi: 10.1002/mrm.26005. Epub 2015 Oct 28. Magn Reson Med. 2016. PMID: 26509652 Free PMC article.
Accurate measurements of B1+ (and hence flip angle) are necessary for quantitative analysis of (31) P-MR spectra. We demonstrate a Bloch-Siegert B1+-mapping method for this purpose. THEORY AND METHODS: We compare acquisition strategies for Bloch-Siegert B1+-mapping …
Accurate measurements of B1+ (and hence flip angle) are necessary for quantitative analysis of (31) P-MR spectra. We demonstrate a Bloch- …
Ultrafast 3D Bloch-Siegert B 1+ -mapping using variational modeling.
Lesch A, Schlöegl M, Holler M, Bredies K, Stollberger R. Lesch A, et al. Magn Reson Med. 2019 Feb;81(2):881-892. doi: 10.1002/mrm.27434. Epub 2018 Oct 12. Magn Reson Med. 2019. PMID: 30444294 Free PMC article.
PURPOSE: Highly accelerated B 1+ -mapping based on the Bloch-Siegert shift to allow 3D acquisitions even within a brief period of a single breath-hold. ...CONCLUSIONS: The proposed variational approach enables highly accelerated 3D acquisitions of Bloch-Siegert data …
PURPOSE: Highly accelerated B 1+ -mapping based on the Bloch-Siegert shift to allow 3D acquisitions even within a brief period of a s …
BCG orchitis.
Cutrone J, Siegert JJ. Cutrone J, et al. Urol Case Rep. 2019 May 29;26:100925. doi: 10.1016/j.eucr.2019.100925. eCollection 2019 Sep. Urol Case Rep. 2019. PMID: 31198685 Free PMC article.
Linear Bloch-Siegert phase-encoded low-field MRI: RF coils, pulse sequence, and image reconstruction.
Srinivas SA, Martin JB, Vaughn CE, Grissom WA. Srinivas SA, et al. NMR Biomed. 2024 Dec;37(12):e5245. doi: 10.1002/nbm.5245. Epub 2024 Aug 26. NMR Biomed. 2024. PMID: 39187938
As a step towards addressing these while providing new degrees of freedom for spatial encoding and system design in Magnetic Resonance Imaging (MRI), a radio frequency (RF) gradient encoding system and pulse sequence for phase encoding using the Bloch-Siegert (BS) shift we …
As a step towards addressing these while providing new degrees of freedom for spatial encoding and system design in Magnetic Resonance Imagi …
Preface.
Siegert MJ, Priscu JC, Alekhina IA, Wadham JL, Lyons WB. Siegert MJ, et al. Philos Trans A Math Phys Eng Sci. 2016 Jan 28;374(2059):20150145. doi: 10.1098/rsta.2015.0145. Philos Trans A Math Phys Eng Sci. 2016. PMID: 26667919 Free PMC article. No abstract available.
Large, valley-exclusive Bloch-Siegert shift in monolayer WS(2).
Sie EJ, Lui CH, Lee YH, Fu L, Kong J, Gedik N. Sie EJ, et al. Science. 2017 Mar 10;355(6329):1066-1069. doi: 10.1126/science.aal2241. Science. 2017. PMID: 28280203
The dominant effect is the optical Stark shift, but there is an additional contribution from the so-called Bloch-Siegert shift that has eluded direct and exclusive observation in solids. We observed an exceptionally large Bloch-Siegert shift in monolayer tungsten di …
The dominant effect is the optical Stark shift, but there is an additional contribution from the so-called Bloch-Siegert shift that h …
2,111 results