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Gorbov I. V. High-density data recording via laser thermo-lithography and ion-beam etching [Електронний ресурс] / I. V. Gorbov, A. A. Kryuchyn, K. P. Grytsenko, D. Yu. Manko, Yu. O. Borodin // Semiconductor physics, quantum electronics & optoelectronics. - 2014. - Vol. 17, № 1. - С. 52-55. - Режим доступу: http://nbuv.gov.ua/UJRN/MSMW_2014_17_1_12 Pits 250 - 300 nm wide were obtained on the surface of thin organic nanocomposite film using master-disc laser-burning station with 405 nm laser beam focused by 0,85 NA lens. The film with obtained pits was used as a mask for subsequent reactive ion-beam etching of glass substrate. Finally, 150 - 200 nm pits were performed on the substrate surface. Nanocomposite films were based on organic positive photoresist with a dye inclusions. This dye is characterized by wide absorption band within the spectral region 390 - 410 nm and can be evaporated by laser irradiation with the wavelength 405 nm.
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Gorbov I. V. The very compact and efficient speckle suppression device for laser picoprojector [Електронний ресурс] / I. V. Gorbov, O. V. Prygun, A. V. Pankratova, I. V. Kosyak, T. Yu. Kliuieva // Semiconductor physics, quantum electronics & optoelectronics. - 2019. - Vol. 22, № 4. - С. 437-443. - Режим доступу: http://nbuv.gov.ua/UJRN/MSMW_2019_22_4_13 The original, simple and efficient speckle suppression method has been proposed for laser picoprojector. The method uses simple 1D DOE structure on flexible film roll up in loop for speckle suppression. The structure of 1D DOE is based on binary pseudorandom sequences. It almost does not require energy and volume and can decrease speckle noise bellow human eye sensitivity. The compact and simple construction of picoprojector using this simple method has been presented. The experimental data confirm high efficiency of the proposed method. However, the obtained results of speckle suppression efficiency are not optimal and can be significantly improved by increasing DOE quality and optimization of DOE structure.The original, simple and efficient speckle suppression method has been proposed for laser picoprojector. The method uses simple 1D DOE structure on flexible film roll up in loop for speckle suppression. The structure of 1D DOE is based on binary pseudorandom sequences. It almost does not require energy and volume and can decrease speckle noise bellow human eye sensitivity. The compact and simple construction of picoprojector using this simple method has been presented. The experimental data confirm high efficiency of the proposed method. However, the obtained results of speckle suppression efficiency are not optimal and can be significantly improved by increasing DOE quality and optimization of DOE structure.
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