Highly sensitive and spatially resolved polyvinyl alcohol/acrylamide photopolymer for real-time holographic applications

Abstract

By employing low molecular-weight polyvinyl alcohol (PVA) as binder, the spatial resolution of a red-sensitive PVA/acrylamide based photopolymer are improved from 1000 lines/mm to 3000 lines/mm. By increasing the ambient temperature during the holographic recording, the photosensitivity of photopolymer is also increased about 5 times. The optimized photopolymer system has high capacity such as high photosensitivity (8 mJ/cm(2)), high spatial resolution (over 3000 lines/mm) and high diffraction efficiency (over 94%). To our knowledge, its holographic recording performance is the best of ever reported PVA/acrylamide based photopolymer systems. It has good application prospects in real-time holographic interferometry, holographic storage and holographic display.

Investigation of the sensitivity to humidity of an acrylamide-based photopolymer containing N-phenylglycine as a photoinitiator

“…Photopolymer materials can be used in holographic data storage [1][2][3][4][5][6][7], diffractive and refractive optical elements [8,9], solar concentrators [10,11], holographic interferometry [12][13][14][15][16] and holographic sensors [17][18][19]. Acrylamide-based photopolymers are widely covered in the literature.…”

Metrology Experiments to Understand Wave Phase and Diffractive Concepts

“…As the recording medium for these experiences, we have chosen to use photopolymers [1] due to their low price, easy fabrication, good optical properties and versatility [2][3][4]. In this particular case, the selected photopolymer is Biophotopol [5], a green non-toxic photopolymer with similar characteristics to those of the most common materials such as the Polyvinyl Alcohol/Acrylamide (PVA/AA) based photopolymers [6][7][8] but without the toxic components that conforms this kind of compositions [9,10] to avoid any kind of risk working with the students.…”

Sensitive polyvinyl alcohol/acrylamide based photopolymer for single pulse holographic recording

“…[1][2][3][4][5]. At present, its applications mainly aim at holographic data storage, holographic interferometry, holographic display, and so on.…”