&lt;title&gt;Development of embossed holograms&lt;/title&gt;

Haines, K. A.

doi:10.1117/12.236085

Cited by 11 publications

(9 citation statements)

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“…The use of polymeric materials and a different technological approach [7,8,[14][15][16][17] is one response to outcome thermal losses while enabling a simpler and less expensive fabrication process compared to conventional lithography-based silicon technologies.…”

Section: Introductionmentioning

confidence: 99%

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Heating Layer of Diamond-Like Carbon Films Used for Crystallization of Silicon Films

Sameshima

Andoh

2005

Jpn. J. Appl. Phys.

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The concept, fabrication process, and characterization of a three-axis thermal accelerometer are presented in this paper. A combination of microelectromechanical systems (MEMS) technology with microinjection molding enables the realization of functional, highly complex 3D geometries at the microscale, used here for the fabrication of a fully integrated three-axis accelerometer. While conventional thermal accelerometers are silicon based, using MEMS technologies only, the integration of polymeric materials and technologies into the fabrication process can greatly improve the realization of three-axis devices while diminishing the typical thermal losses. Three-axis thermal accelerometers were successfully fabricated by combining the proposed technologies proving the viability of the concept. Fabricated accelerometers show xy-axis sensitivity around 8 mV g −1 , a z-axis sensitivity of 2.2 mV g −1 for a power of 45 mW and a 4 Hz bandwidth (bandwidth is based on simulations). Thermal tests performed showed that the heater can sustain up to 280 °C without overheating the remaining structures and damaging the device.

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Section: Introductionmentioning

confidence: 99%

“…This unique process requires precise control of the temperature, pressures, and velocities due to the small channels, which can cause shear rate and possible material degradation. The molding cavity must be precise and overdimensioned to allow for polymer shrinkage [23].…”

Section: Introductionmentioning

confidence: 99%

Heating Layer of Diamond-Like Carbon Films Used for Crystallization of Silicon Films

Sameshima

Andoh

2005

Jpn. J. Appl. Phys.

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“…The wavelike holograms may be mass-produced with the use of the known technology operations: recording of the master hologram on photoresist, photoresist developing, metallization, obtaining of the master stamp in the galvanoplastic process, and embossing on polymer layer [5,6]. The next step should be deposition of the reflecting film onto the embossed relief.…”

Section: Discussion: Possible Applicationsmentioning

confidence: 99%

“…In volume holograms, the distortion of transmitted light is notably lower. However, volume holograms could not be manufactured by low-cost embossing technology [5,6]. As a result, the production of these holograms is expensive.…”

Section: Introductionmentioning

confidence: 99%

Optical elements containing semitransparent wavelike films

Smolovich

Chernov

2017

Appl. Opt.

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Novel optical elements containing semitransparent wavelike films embedded into the bulk of transparent material, which form a reflection image without transmitted light distortion, are studied. The dynamic theory of light diffraction by a locally periodic multilayer semitransparent wavelike film is developed. A simple analytical formula for near Bragg diffraction order intensity is obtained for the case when only one diffraction order lies within the hologram angular selectivity. The phase modulation of light transmitted through the optical element containing wavelike films is estimated for single-layer and multilayer wavelike films with an arbitrary shape of surface. The restrictions on the structure parameters for which transmitted light distortions would be negligible are obtained. A new type of high quality color hologram is proposed and shown to be feasible by calculation of hologram diffraction efficiency and spectral selectivity for three colors. Other possible applications, such as monochrome and color head-up and head-mounted displays, and imaging on spectacle lenses, are discussed.

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“…Micromolding was originally used as a process for manufacturing products such as CDs, [145] DVDs, [145] holograms, [146] and lenses. [147] This decades-old method has been modified and adapted for bench-top use primarily in the Whitesides’ group (http://gmwgroup.harvard.edu/) since the mid-90's.…”

Section: Connection To Current Microtechnologymentioning

confidence: 99%

Microfabricated Systems and Assays for Studying the Cytoskeletal Organization, Micromechanics, and Motility Patterns of Cancerous Cells

Huda

Pilans

Makurath

et al. 2014

Adv Materials Inter

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Cell motions are driven by coordinated actions of the intracellular cytoskeleton – actin, microtubules (MTs) and substrate/focal adhesions (FAs). This coordination is altered in metastatic cancer cells resulting in deregulated and increased cellular motility. Microfabrication tools, including photolithography, micromolding, microcontact printing, wet stamping and microfluidic devices have emerged as a powerful set of experimental tools with which to probe and define the differences in cytoskeleton organization/dynamics and cell motility patterns in non-metastatic and metastatic cancer cells. In this review, we discuss four categories of microfabricated systems: (i) micropatterned substrates for studying of cell motility sub-processes (for example, MT targeting of FAs or cell polarization); (ii) systems for studying cell mechanical properties, (iii) systems for probing overall cell motility patterns within challenging geometric confines relevant to metastasis (for example, linear and ratchet geometries), and (iv) microfluidic devices that incorporate co-cultures of multiple cells types and chemical gradients to mimic in vivo intravasation/extravasation steps of metastasis. Together, these systems allow for creating controlled microenvironments that not only mimic complex soft tissues, but are also compatible with live cell high-resolution imaging and quantitative analysis of single cell behavior.

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<title>Development of embossed holograms</title>

Cited by 11 publications

References 0 publications

Heating Layer of Diamond-Like Carbon Films Used for Crystallization of Silicon Films

Heating Layer of Diamond-Like Carbon Films Used for Crystallization of Silicon Films

Optical elements containing semitransparent wavelike films

Microfabricated Systems and Assays for Studying the Cytoskeletal Organization, Micromechanics, and Motility Patterns of Cancerous Cells

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