Holography and Optical Storage

Imlau, Mirco; Fally, Martin; Burr, Geoffrey W.; Sincerbox, Glenn T.

doi:10.1007/978-3-642-19409-2_24

Cited by 2 publications

(2 citation statements)

References 321 publications

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“…In a more general view, the novel media can already be classified with regard to common holographic recording materials. We here follow the scheme presented in Reference [ 65 ]. Media built from transition metal compounds of the nitroprusside class allow for the recording of dynamic, thick, phase holograms either in transmission or reflection geometry.…”

Section: Discussionmentioning

confidence: 99%

Transition Metal Compounds Towards Holography

et al. 2012

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We have successfully proposed the application of transition metal compounds in holographic recording media. Such compounds feature an ultra-fast light-induced linkage isomerization of the transition-metal–ligand bond with switching times in the sub-picosecond regime and lifetimes from microseconds up to hours at room temperature. This article highlights the photofunctionality of two of the most promising transition metal compounds and the photophysical mechanisms that are underlying the hologram recording. We present the latest progress with respect to the key measures of holographic media assembled from transition metal compounds, the molecular embedding in a dielectric matrix and their impressive potential for modern holographic applications.

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Section: Discussionmentioning

confidence: 99%

Transition Metal Compounds Towards Holography

et al. 2012

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“…Heavy sandboxes, decoupled from the environment by air hoses, were an interesting alternative to granite slabs for many years. These constructions have become widespread, especially in the field of holography [11] and allow the simple positioning of optical components and objects in the sand volume [12] . Because they are easy to assemble/disassemble as well as inexpensive, sandboxes can be seen as the origin of do-it-yourself (DIY) constructions for optical breadboards and tables.…”

Section: Hardware In Contextmentioning

confidence: 99%

A modular optical honeycomb breadboard realized with 3D-printable building bricks and industrial aluminum extrusions

et al. 2021

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Optical breadboards are generally constructed in a sandwich-like plate structure: Comparatively thin upper and lower metal plates are bonded to a central honeycomb structure, so that a particularly high mechanical stability and a minimum of bending is achieved at the same time as low weight [1]. Structural dampers are mounted in the honeycomb structure to secure vibration damping. The top surface has a plurality of tapped holes for mounting equipment, that are sealed to avoid contamination of the breadboard core [2][3][4]. The entire construction is framed with bordering side elements. Some of them are used to increase the board stability against shear forces [5] or for damping treatment [6].The optical breadboard can be combined with legs containing pneumatic vibration isolators. These act as mechanical lowpass filters reducing the transmission of vibrations from the floor to the tabletop. From a fundamental viewpoint, the system properties can be described with the vibration theory for damped harmonic oscillation of a pendulum (horizontal vibrations) and of a spring (vertical vibrations) [7][8][9]. Historically, granite slabs on industrial springs that obey a low resonance frequency in the sub-5-Hz regime have been used as optical support. Thus, the stability of optical setups against a spectrum of acoustic and mechanical frequencies is secured, typically ranging from 10 to 1.000 Hz. While granite tables provide the flatness and rigidity required, their great weight and the difficulty of attaching components to the surfaces make them cumbersome to use. Still, these constructions are preferred for specific setups with extreme requirements to stiffness [10].Heavy sandboxes, decoupled from the environment by air hoses, were an interesting alternative to granite slabs for many years. These constructions have become widespread, especially in the field of holography [11] and allow the simple positioning of optical components and objects in the sand volume [12]. Because they are easy to assemble/disassemble as well as inexpensive, sandboxes can be seen as the origin of do-it-yourself (DIY) constructions for optical breadboards and tables. Further DIY-approaches combine thin, low-weight granite slabs in sandboxes. But there are also several 'cheap & easy'examples that combine a thin plate of aluminum or wood with foam materials or rubber (see e.g. reference [13]). Here, the combination of several stiff materials with different speeds of sound produces a breadboard for which a wide range of vibrations are critically damped, also referred to as composite breadboards, commercially available nowadays [14]. In recent years, 3D-printing technology entered the field of DIY-production of optical baseplates [15][16][17]. Also, the combination of 3D-printed optical elements mounted on a solid rail system [18] was proposed, according to the original invention of optical benches of A. Weinhold [19]. Other examples focus on open cage structures [20,21] according to the LINOS microbench concept [22] that, however, dispenses with the...

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Holography and Optical Storage

Cited by 2 publications

References 321 publications

Transition Metal Compounds Towards Holography

Transition Metal Compounds Towards Holography

A modular optical honeycomb breadboard realized with 3D-printable building bricks and industrial aluminum extrusions

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