Replicated arrays of hybrid elements for application in a low-cost micro-spectrometer array

Traut, S.; Rossi, Markus; Herzig, Hans Peter

doi:10.1080/09500340008230521

Cited by 16 publications

(5 citation statements)

References 6 publications

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“…Literature exists for the top-down fabrication, from a variety of materials, of lensing arrays and individual elements at much smaller sizes than are commercially available. PDMS [71], SU-8 [8,72], fluid-filled [35], and polymer lenses [73,74] have been fabricated for use in microfluidic devices. Microlenses can be fabricated for use with integrated in-plane optics, especially for coupling to waveguides.…”

Section: Lensesmentioning

confidence: 99%

The good, the bad, and the tiny: a review of microflow cytometry

et al. 2008

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Recent developments in microflow cytometry have concentrated on advancing technology in four main areas: (1) focusing the particles to be analyzed in the microfluidic channel, (2) miniaturization of the fluid-handling components, (3) miniaturization of the optics, and (4) integration and applications development. Strategies for focusing particles in a narrow path as they pass through the detection region include the use of focusing fluids, nozzles, and dielectrophoresis. Strategies for optics range from the use of microscope objectives to polymer waveguides or optical fibers embedded on-chip. While most investigators use off-chip fluidic control, there are a few examples of integrated valves and pumps. To date, demonstrations of applications are primarily used to establish that the microflow systems provide data of the same quality as laboratory systems, but new capabilities-such as automated sample staining-are beginning to emerge. Each of these four areas is discussed in detail in terms of the progress of development, the continuing limitations, and potential future directions for microflow cytometers.

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Section: Lensesmentioning

confidence: 99%

The good, the bad, and the tiny: a review of microflow cytometry

et al. 2008

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“…21 Alternatively, negative metal replicates, formed by electrodeposition of metal over the resist lenses, may be used to hot-emboss microlenses into plastics such as polycarbonate. 14,22 Nussbaum et al have also reported a casting method to make epoxy-based microlenses, involving the fabrication of a negative mold of the original element in a silicone rubber, followed by casting of UV-curable epoxy onto the rubber mold. The result were lenses which exhibited good transmission in the visible and IR.…”

Section: Microlensesmentioning

confidence: 99%

“…These elements could also be formed in plastic by hot embossing. 22 Fig. 4 shows the concept proposed by these researchers for spectrometric chemical analysis.…”

Section: Diffractive Elementsmentioning

confidence: 99%

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“…Although this method is quite evolved, there are some applications where having a monolithic material structure is advantageous, such as in extreme temperature conditions or particularly aggressive environments, as presented in [9] for planar surfaces. Gratings on microlenses in plastic materials have been demonstrated using replication by hot embossing [10].…”

Section: Introductionmentioning

confidence: 99%

Nanostructured surface fabricated by laser interference lithography to attenuate the reflectivity of microlens arrays

Baroni¹,

Päivänranta²,

Scharf³

et al. 2010

J. Eur. Opt. Soc.-Rapid Publ.

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A subwavelength-scale square lattice optical nanostructure is fabricated using an interference photolithography process on the surface of a quartz microlens array. This nanostructuring of the quartz surface introduces an antireflective effect, reducing reflectivity between 10% and 30% and enhancing the transmissivity 3% in the visible spectrum. This approach permits fast fabrication on a 4-inch wafer covered with microlenses (non-flat surface) and produces monolithic devices which are robust to adverse environments such as temperature variations.

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Replicated arrays of hybrid elements for application in a low-cost micro-spectrometer array

Cited by 16 publications

References 6 publications

The good, the bad, and the tiny: a review of microflow cytometry

The good, the bad, and the tiny: a review of microflow cytometry

Focus

Nanostructured surface fabricated by laser interference lithography to attenuate the reflectivity of microlens arrays

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