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Hadamard Spectrometry for Thermoluminescence Investigations

100%

Oczkowski H.

Acta Physica Polonica A

1992

vol. 82

issue 3

367-375

A Hadamard encoded spectrometer with a special variable interference filter allows attaining high throughput and sensitivity. In our instrument the interference filter is fixed between condenser lenses. The transmitted wavelength changes continuously along the length of the filter. The multislit cyclic Hadamard mask moves step by step behind the filter to multiplex signal. Some details concerning the data recording, handling and decoding are specific for this technique of investigation of thermoluminescence spectrum.

Electronic States and Structure of Dibenzo[j,lm]-phenanthro[5,4,3-abcd]perylene

80%

Marczyk J., Waluk J., Fetzer J.

Electronic absorption and emission, fluorescence anisotropy and linear dichroism techniques were applied to dibenzo[j, lm]phenanthro[5,4,3-abcd]perylene in order to determine its electronic structure and check the possibility of existence of conformational isomers. The results indicate the presence of only one conformer. Its structure is proposed on the basis of the experimental data as well as molecular mechanics and quantum chemical calculations.

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2 Acta Physica Polonica A

1 1995

1 1992

1 Fetzer J.

1 Marczyk J.

1 Oczkowski H.

1 Waluk J.

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Hadamard Spectrometry for Thermoluminescence Investigations

Electronic States and Structure of Dibenzo[j,lm]-phenanthro[5,4,3-abcd]perylene