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Showing 1 to 12 of 28 entries
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Diffuserless holographic projection working on twin spatial light modulators.

Optics letters

Siemion A, Sypek M, Suszek J, Makowski M, Siemion A, Kolodziejczyk A, Jaroszewicz Z.
PMID: 23258006
Opt Lett. 2012 Dec 15;37(24):5064-6. doi: 10.1364/OL.37.005064.

An improved efficient projection of holographic images is presented. It uses two phase spatial light modulators (SLMs) with two iteratively optimized Fresnel holograms displayed simultaneously--each for one modulator. The phase distribution on the second modulator is taking into account...

Methods for Determining the Thermal Transfer in Phase-Changing Materials (PCMs).

Polymers

Bendic V, Dobrotă D, Simion I, Bălan E, Pascu NE, Tilina DI.
PMID: 32085434
Polymers (Basel). 2020 Feb 18;12(2). doi: 10.3390/polym12020467.

A very important issue that needs to be solved as simply and correctly as possible is how to establish the thermal performance of phase-changing materials (PCM). The undertaken researches have analyzed the values of the thermal performances of the...

Molecular alterations in Hürthle cell nodules and preoperative cancer risk.

Endocrine-related cancer

Doerfler WR, Nikitski AV, Morariu EM, Ohori NP, Chiosea SI, Landau MS, Nikiforova MN, Nikiforov YE, Yip L, Manroa P.
PMID: 33792557
Endocr Relat Cancer. 2021 Apr 27;28(5):301-309. doi: 10.1530/ERC-20-0435.

Hürthle cell carcinoma (HCC) is a distinct type of thyroid cancer genetically characterized by DNA copy number alterations (CNA), typically of genome haploidization type (GH-type). However, whether CNA also occurs in benign Hürthle cell adenomas (HCA) or Hürthle cell...

Computational proximity lithography with extreme ultraviolet radiation.

Optics express

Deuter V, Grochowicz M, Brose S, Biller J, Danylyuk S, Taubner T, Siemion A, Grützmacher D, Juschkin L.
PMID: 32906962
Opt Express. 2020 Aug 31;28(18):27000-27012. doi: 10.1364/OE.398805.

The potential of extreme ultraviolet (EUV) computational proximity lithography for fabrication of arbitrary nanoscale patterns is investigated. We propose to use a holographic mask (attenuating phase shifting mask) consisting of structures of two phase levels. This approach allows printing...

Terahertz diffractive structures for compact in-reflection inspection setup.

Optics express

Siemion A, Komorowski P, Surma M, Ducin I, Sobotka P, Walczakowski M, Czerwińska E.
PMID: 32118994
Opt Express. 2020 Jan 06;28(1):715-723. doi: 10.1364/OE.382272.

Two diffractive optical elements are used to create a compact raster THz scanning setup in reflective configuration. The first one focuses the radiation into the small focal spot on the sample, while the second one collects reflected radiation and...

Highly efficient broadband double-sided Fresnel lens for THz range.

Optics letters

Sypek M, Makowski M, Hérault E, Siemion A, Siemion A, Suszek J, Garet F, Coutaz JL.
PMID: 22739859
Opt Lett. 2012 Jun 15;37(12):2214-6. doi: 10.1364/OL.37.002214.

Modern passive THz setups require effective optical elements with a large numerical aperture. Here we propose a new type of the optical element for THz applications, which is a broadband double-sided Fresnel-like lens with an optimized thickness. The optimization...

High order kinoforms as a broadband achromatic diffractive optics for terahertz beams.

Optics express

Suszek J, Siemion AM, Błocki N, Makowski M, Czerwiński A, Bomba J, Kowalczyk A, Ducin I, Kakarenko K, Pałka N, Zagrajek P, Kowalski M, Czerwińska E, Jastrzebski C, Świtkowski K, Coutaz JL, Kolodziejczyk A, Sypek M.
PMID: 24663604
Opt Express. 2014 Feb 10;22(3):3137-44. doi: 10.1364/OE.22.003137.

We discuss thin optical structures that allow chromatic aberrations to be avoided in the THz domain. The paper contains the theoretical considerations, computer modeling and experimental evaluation of the high order kinoform diffractive elements in the THz range. According...

Efficient image projection by Fourier electroholography.

Optics letters

Makowski M, Ducin I, Kakarenko K, Kolodziejczyk A, Siemion A, Siemion A, Suszek J, Sypek M, Wojnowski D.
PMID: 21847145
Opt Lett. 2011 Aug 15;36(16):3018-20. doi: 10.1364/OL.36.003018.

An improved efficient projection of color images is presented. It uses a phase spatial light modulator with three iteratively optimized Fourier holograms displayed simultaneously--each for one primary color. This spatial division instead of time division provides stable images. A...

The regularities of the changes of amino acid physico-chemical properties within the genetic code.

Amino acids

Siemion IZ.
PMID: 24186211
Amino Acids. 1995 Mar;8(1):1-13. doi: 10.1007/BF00806539.

All the codons of the genetic code can be arranged into the closed one-step mutation ring, containing three periods of the same sequence of mutations (2,3,3,3,1,3,3,3,1,3,3,3,1,3,3,3,2,3,3,3). The codons of Gly play a role of the connecting element between the...

Clinicopathologic Characteristics of Thyroid Nodules Positive for the .

Thyroid : official journal of the American Thyroid Association

Morariu EM, McCoy KL, Chiosea SI, Nikitski AV, Manroa P, Nikiforova MN, Nikiforov YE.
PMID: 33487086
Thyroid. 2021 Aug;31(8):1212-1218. doi: 10.1089/thy.2020.0589. Epub 2021 Mar 04.

No abstract available.

Primary and Secondary/ Metastatic Salivary Duct Carcinoma Presenting within the Sinonasal Tract.

Head and neck pathology

Agaimy A, Mueller SK, Bishop JA, Chiosea SI.
PMID: 33428064
Head Neck Pathol. 2021 Sep;15(3):769-779. doi: 10.1007/s12105-020-01271-8. Epub 2021 Jan 11.

Traditionally, sinonasal adenocarcinomas have been subdivided into intestinal (ITAC) and non-intestinal (non-ITAC) categories. The latter encompasses salivary-type adenocarcinomas originating from the seromucinous glands of the sinonasal mucosa and non-salivary adenocarcinomas. The non-salivary adenocarcinoma category is further subdivided into low-and...

The Magic of Optics-An Overview of Recent Advanced Terahertz Diffractive Optical Elements.

Sensors (Basel, Switzerland)

Siemion A.
PMID: 33375221
Sensors (Basel). 2020 Dec 26;21(1). doi: 10.3390/s21010100.

Diffractive optical elements are well known for being not only flat but also lightweight, and are characterised by low attenuation. In different spectral ranges, they provide better efficiency than commonly used refractive lenses. An overview of the recently invented...

Showing 1 to 12 of 28 entries