Multiphoton laser direct writing of two-dimensional silver structures

Baldacchini, Tommaso; Pons, Anne-Cécile; Pons, Josefina; LaFratta, Christopher N.; Fourkas, John T.; Sun, Yong; Naughton, Michael

doi:10.1364/opex.13.001275

Cited by 121 publications

(92 citation statements)

References 14 publications

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“…However, it is now known that silver and gold can be deposited in metallic form by simple irradiation with light [88][89][90][91]. Silver metals can also be deposited using light by a multiphoton process [92], which suggests the creation of three-dimensional structure laser scanning optics.…”

Section: Nanostructures For Enhanced Wavelength-selective Detectionmentioning

confidence: 99%

Plasmonics in Biology and Plasmon-Controlled Fluorescence

2006

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Fluorescence technology is fully entrenched in all aspects of biological research. To a significant extent, future advances in biology and medicine depend on the advances in the capabilities of fluorescence measurements. As examples, the sensitivity of many clinical assays is limited by sample autofluorescence, single-molecule detection is limited by the brightness and photostability of the fluorophores, and the spatial resolution of cellular imaging is limited to about one-half of the wavelength of the incident light. We believe a combination of fluorescence, plasmonics, and nanofabrication can fundamentally change and increase the capabilities of fluorescence technology. Surface plasmons are collective oscillations of free electrons in metallic surfaces and particles. Surface plasmons, without fluorescence, are already in use to a limited extent in biological research. These applications include the use of surface plasmon resonance to measure bioaffinity reactions and the use of metal colloids as light-scattering probes. However, the uses of surface plasmons in biology are not limited to their optical absorption or extinction. We now know that fluorophores in the excited state can create plasmons that radiate into the far field and that fluorophores in the ground state can interact with and be excited by surface plasmons. These reciprocal interactions suggest that the novel optical absorption and scattering properties of metallic nanostructures can be used to control the decay rates, location, and direction of fluorophore emission. We refer to these phenomena as plasmon-controlled fluorescence (PCF). We predict that PCF will result in a new generation of probes and devices. These likely possibilities include ultrabright single-particle probes that do not photobleach, probes for selective multiphoton excitation with decreased light intensities, and distance measurements in biomolecular assemblies in the range from 10 to 200 nm. Additionally, PCF is likely to allow design of structures that enhance emission at specific wavelengths and the creation of new devices that control and transport the energy from excited fluorophores in the form of plasmons, and then convert the plasmons back to light. Finally, it appears possible that the use of PCF will allow construction of wide-field optical microscopy with subwavelength spatial resolution down to 25 nm.

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Section: Nanostructures For Enhanced Wavelength-selective Detectionmentioning

confidence: 99%

Plasmonics in Biology and Plasmon-Controlled Fluorescence

2006

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“…Wir haben auch die Abscheidung von Silbernanopartikeln aus einer Silberperchloratlösung mithilfe eines photochemischen Reduktionsmittels beschrieben. [112] Auf ähnliche Weise erzeugten Tanaka, Kawata und Mitarbeiter zwei-und dreidimensionale Silber-und zweidimensionale Goldstrukturen aus wässrigen [118] Wir haben diese Arbeit über die Herstellung von zweidimensionalen Silberstrukturen erweitert, indem wir zeigten, dass man eine stromlose Anreicherung mit Kupfer dazu einsetzen kann, die Silberstrukturen leitfähig zu machen. [119] Die Leitfähigkeit war anschließend nur noch um den Faktor vier geringer als für das makroskopische Metall.…”

Section: Abscheidung Von Metallen Aus Lösungenunclassified

Mehrphotonen‐Mikrofabrikation

et al. 2007

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Chemische und physikalische Prozesse, die auf Mehrphotonenabsorption beruhen, ermöglichen die Herstellung komplexer dreidimensionaler Mikrostrukturen mit einer Auflösung von 100 nm. Seit der experimentellen Realisierung der Mehrphotonenabsorption vor nicht einmal zehn Jahren wurden in diesem Bereich rasch Fortschritte erzielt, und Mehrphotonentechniken werden heute für die Herstellung funktionsfähiger Mikrosysteme eingesetzt. In diesem Aufsatz diskutieren wir die Techniken und Materialien, die für die Mehrphotonen‐Mikrofabrikation verwendet werden, sowie bereits beschriebene und gegenwärtig angestrebte Anwendungen. Wir betrachten auch die Perspektiven dieses Felds für Forschung und Industrie.

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“…The host materials are often transparent dielectrics, which allow them to be used in optical applications. Common host materials include glasses [18,19] and polymers [20,21]. To activate the ions dissolved in an insulator and form a metal-insulator composite, the ions must first be reduced to atoms.…”

Section: Introductionmentioning

confidence: 99%

“…Using solution processing, the production of silver-polymer composites also becomes relatively straightforward. Various polymers such as polyvinyl alcohol (PVA) [17,23], polyvinyl pyrrolidone (PVP) [6,20], polyethylene oxide (PEO) [11], and gelatin [21] have been used in the past as hosts for silver ions. Polymers can generally dissolve large quantities of silver, but they lack stability when compared to glass.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a silica-PVA hybrid for high density and stable silver dissolution

Dorin

Zhu

Parkinson

et al. 2016

Materials Chemistry and Physics

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A silica and polyvinyl alcohol (PVA) hybrid material mixed with a high density of silver ions is synthesised and characterized in this work. The hybrid material can be cast into thick films, which we determined to be homogeneous using Raman spectroscopy. We observed that the silver ions remain stable in the material over time and at temperatures of 100 o C, which represents a marked improvement over previous solid solutions of silver. Differential scanning calorimetry and thermogravimetric analysis indicate the rapid activation of silver at 173 o C, resulting in a dense formation of silver nanoparticles within the hybrid. The activation of silver was also demonstrated in 3-dimensional geometries using femtosecond duration laser pulses. These results illustrate the silica-PVA hybrid is an attractive material for developing silver-insulator composites.

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Multiphoton laser direct writing of two-dimensional silver structures

Cited by 121 publications

References 14 publications

Plasmonics in Biology and Plasmon-Controlled Fluorescence

Plasmonics in Biology and Plasmon-Controlled Fluorescence

Mehrphotonen‐Mikrofabrikation

Characterization of a silica-PVA hybrid for high density and stable silver dissolution

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