New Approaching in Neutron Absorption on ThxSr2O1.8 Micro Structure with Quantum Dot at Magnetic Quadrupole Enhancement  

Oleh:

Hardiyanto, Moh.

Jenis: Article from Proceeding
Dalam koleksi: Prosiding Seminar Nasional Riset & Teknologi Terapan (Ritektra) "Peran Riset & Teknologi Terapan dalam Pengembangan Industri", Jakarta 7-8 Juli 2011 : Fakultas Teknik Mesin, page 1-10.
Topik: Neutron Interband; THxSR2O1.8 ; Quantum Dot; Magnetic Quadrupole
Fulltext: TM-001.pdf (184.9KB)

Isi artikel

We present a research investigation of ThxSr2O1.8 micro structure with quantum dot interacting with a strongly localized optical field as encountered in high-resolution near-field optical microscopy. The strong gradients of these localized fields suggest that higher-order multipolar interactions will affect the standard magnetic dipole transition rates and selection rules. For neutron tunneling quantum dot in the strong confinement limit we calculated the interband magnetic quadrupole absorption rate and the associated selection rules. Founded that the magnetic quadrupole absorption rate is comparable with the absorption rate calculated in the magnetic dipole approximation. This implies that near-field optical techniques can extend the range of spectroscopic measurements for 412 MHz at quantum magnetic field until 515 MHz deployment quantum field at around 375-450 tesla beyond the standard dipole approximation. However, we also show that spatial resolution cannot be improved by the selective excitation of electric quadrupole transitions.

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