Photopolymerizable organically modified holographic glass with enhanced thickness for spectral filters

Abstract

A novel formulation and synthesis method to overcome the thickness limitations in samples of photopolymerizable glasses with high refractive index species is presented. The reported method allows the recording of volume holographic diffraction gratings in samples of $500 lm thickness with a high optical quality and low scattering. Holographic grating recording is performed in a single coherent light exposure step, resulting in volume gratings of high optical quality. A holographic notch filter implemented in a 500 lm thick photopolymerizable glass with a spectral bandwidth below 0.3 nm and an excellent filter extinction ratio of <À27 dB is also demonstrated.

Synthesis of Fast Curing, Water‐Resistant and Photopolymerizable Glass for Recording of Holographic Structures by One‐ and Two‐Photon Lithography

“…Since the first photopolymerizable glass development, these materials have demonstrated excellent capability for volume holography due to their valuable combination of properties of both holographic recording materials with good optical quality, high dynamic range and inorganic materials with high dimensional stability. [12,[16][17][18][19][20] Photopolymerizable glasses have great potential for applications in holographic memory, [11,18,21] high power instrumentation, [22] spectrometry, [23] holographic optical elements, [17,24] and holographic solar concentrators. [25] However, to date, the commercial potential of state-of-the-art photopolymerizable glasses remains limited due to the long curing times required to produce the solid phase of the material which is necessary for successful holographic recording.…”

Charge transfer mediated triplet excited state formation in donor–acceptor–donor BODIPY: Application for recording of holographic structures in photopolymerizable glass

“…24 Photopolymerization is one of the most convenient processes for creating holographic microstructures in the volume of photosensitive materials as it can be spatially and temporally controlled. [25][26][27] Microstructures created using this method represent holographic optical elements with high efficiency (up to 100%) and tunable selectivity (angular bandwidth varying in the range from a fraction of a degree to tens of degrees and spectral bandwidth varying from a few to hundreds of nanometres). 28,29 A widely used type of photoinitiating system for holographic recording relies on the combination of a photosensitizer and a co-initiator component, which forms free radicals under light irradiation.…”

Современное Состояние Разработки Светочувствительных Сред Для Голографии (Обзор)

“…Для получения толстых регистрирующих сред (500 µm) разработан метод их получения с использо-ванием акриловых композиций и наночастиц ZrO 2 [69]. Разработаны голографические композитные фотополи-меризующиеся среды с наночастицами ZnS [70].…”