Comparison of a new self developing photopolymer with AA/PVA based photopolymer utilizing the NPDD model

Abstract

Abstract:The development of suitable recording media for applications such as holographic optical elements and holographic data storage are of significant research and commercial interest. In this paper, a photopolymer material developed by Bayer MaterialScience is examined using various optical techniques and then characterised using the Non-local Photopolymerization Driven Diffusion model. This material demonstrates the capabilities of a new class of photopolymer offering high index modulation, full colour recording, high light sensitivity and environmental stability. One key result of this study is the material's high spatial frequency resolution, indicating a very low non-local effect, thus qualifying it as a very good storage medium. ©2011 Optical Society of America References and links1. L. Dhar, A. Hale, H. E. Katz, M. L. Schilling, M. G. Schnoes, and F. C. Schilling, "Recording media that exhibit high dynamic range for digital holographic data storage," Opt. Lett. 24(7), 487-489 (1999).

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

“…Среди фотополимеризующихся материалов наиболь-ший коммерческий интерес в настоящее время представ-ляют разработанные фирмой Байер (Германия) свето- чувствительные пленки на основе акрилатной компози-ции BMS, обеспечивающие регистрацию цветных голо-грамм [47,48]. По сравнению с известными ПВС/акрил-амидными композициями она обладает более высо-кой светочувствительностью, в 3 раза большим фото-индуцированным изменением показателя преломления, высокой разрешающей способностью и возможностью регистрации высококачественных отражательных голо-грамм.…”

Photopolymers for Use as Holographic Media

“…It is these reactions which are the basis of the theoretical models which are used as photopolymer material optimisation tools and are the fundamental building blocks of the Non-local Photo-polymerisation Driven Diffusion (NPDD) model [11,[26][27][28][29][30][31][32][33][34].…”

“…More recently, works have been carried out on the development of a commercial grade acrylate photopolymer with the same two step polymerisation [24], offering very fast response of the refractive index modulation with respect to the recording dosage, particularly at lower power densities, very high storage resolution, and very large refractive index modulation [25,26].…”

“…In this chapter we examine some recently published results on the Non-local Photopolymerization Driven Diffusion (NPDD) model, [26][27][28][29][30][31][32]. This model provides a comprehensive theoretical representation of the processes, which occur during free radical photo-polymerization.…”

“…This model provides a comprehensive theoretical representation of the processes, which occur during free radical photo-polymerization. The physically realistic model enables predictions to be made about a number of very different photopolymer materials [26][27][28][29][30][31][32]. We present several extensions to the previous model in particular allowing for spatially and temporally varying primary radical generation, oxygen inhibition, dark reactions and chain transfer effects.…”