Investigations on the generation of photonic crystals using two-photon polymerization (2PP) of inorganic-organic hybrid polymers with ultra-short laser pulses

2007 ◽  
Vol 204 (11) ◽  
pp. 3662-3675 ◽  
Author(s):  
R. Houbertz ◽  
P. Declerck ◽  
S. Passinger ◽  
A. Ovsianikov ◽  
J. Serbin ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Laser Pulses ◽  
Hybrid Polymers ◽  
Organic Hybrid ◽  
Two Photon ◽  
Short Laser Pulses ◽  
Two Photon Polymerization

Two-Photon Polymerization Technique for Bio-Applications

2005 ◽  
Author(s):  
Aleksandr V. Ovsianikov ◽  
Boris N. Chichkov
Keyword(s):  
3D Structure ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Biological Applications ◽  
Cell Adherence ◽  
3D Scaffold ◽  
Organic Hybrid ◽  
Two Photon ◽  
Direct Laser ◽  
Two Photon Polymerization

We will report on the recently developed two-photon polymerization (2PP) technique for biological applications. 2PP of photosensitive inorganic-organic hybrid polymers (ORMOCERs) is applied for the fabrication of 3D scaffolds, micro-and nanostructures. ORMOCERs have negative resist behaviour and can be used as storage-stable, liquid photopolymerizable resins. When Ti:sapphire femtosecond laser pulses are tightly focused into the volume of this resin (which is transparent in the infrared) they initiate 2PP process transferring liquid into the solid state. This allows the fabrication of any computer-generated 3D structure by direct laser “recording” into the volume of this material. ORMOCERs demonstrate excellent cell adherence and cell growth rate comparable to that of Extracellular matrix. With 2PP technique there are no limits in complexity of the 3D scaffold structures which can be fabricated with the resolution of 100 nm.

Inorganic-organic Hybrid Materials for Real 3-D Sub-νm Lithography

2003 ◽  
Vol 780 ◽  
Author(s):  
R. Houbertz ◽  
J. Schulz ◽  
L. Fröhlich ◽  
G. Domann ◽  
M. Popall ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Sol Gel ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Hybrid Polymer ◽  
Organic Hybrid ◽  
Two Photon ◽  
Applied Technology ◽  
Scale Structures ◽  
Sol Gel Synthesis

AbstractReal 3-D sub-νm lithography was performed with two-photon polymerization (2PP) using inorganic-organic hybrid polymer (ORMOCER®) resins. The hybrid polymers were synthesized by hydrolysis/polycondensation reactions (modified sol-gel synthesis) which allows one to tailor their material properties towards the respective applications, i.e., dielectrics, optics or passivation. Due to their photosensitive organic functionalities, ORMOCER®s can be patterned by conventional photo-lithography as well as by femtosecond laser pulses at 780 nm. This results in polymerized (solid) structures where the non-polymerized parts can be removed by conventional developers.ORMOCER® structures as small as 200 nm or even below were generated by 2PP of the resins using femtosecond laser pulses. It is demonstrated that ORMOCER®s have the potential to be used in components or devices built up by nm-scale structures such as, e.g., photonic crystals. Aspects of the materials in conjunction to the applied technology are discussed.

scholarly journals Two-Photon Polymerization of Albumin Hydrogel Nanowires Strengthened with Graphene Oxide

Biomimetics ◽  
2021 ◽  
Vol 6 (4) ◽  
pp. 66
Author(s):  
Nikita Nekrasov ◽  
Natalya Yakunina ◽  
Vladimir Nevolin ◽  
Ivan Bobrinetskiy ◽  
Pavel Vasilevsky ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Nanoelectromechanical Systems ◽  
Force Microscopy ◽  
Two Photon ◽  
Direct Laser ◽  
Two Photon Polymerization

Multifunctional biomaterials can pave a way to novel types of micro- and nanoelectromechanical systems providing benefits in mimicking of biological functions in implantable, wearable structures. The production of biocomposites that hold both superior electrical and mechanical properties is still a challenging task. In this study, we aim to fabricate 3D printed hydrogel from a biocomposite of bovine serum albumin with graphene oxide (BSA@GO) using femtosecond laser processing. We have developed the method for functional BSA@GO composite nanostructuring based on both two-photon polymerization of nanofilaments and direct laser writing. The atomic-force microscopy was used to probe local electrical and mechanical properties of hydrogel BSA@GO nanowires. The improved local mechanical properties demonstrate synergistic effect in interaction of femtosecond laser pulses and novel composite structure.

An Exhaustive Analysis of the Characterization of Photopolymer Material (SZ2080) by Two-Photon Polymerization, Waves Moving in a Periodic Potential, and Two-Photon Absorption

2020 ◽  
Vol 1003 ◽  
pp. 165-172 ◽  
Author(s):  
Ritu Walia ◽  
Kamal Nain Chopra
Keyword(s):  
Photonic Crystals ◽  
Quantum Coherence ◽  
Periodic Potential ◽  
Three Dimensional ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Polymerization Waves ◽  
Two Photon Polymerization

This paper presents an Exhaustive Analysis of the Characterization of Photopolymer Material (SZ2080) by Two-Photon Polymerization, and some of the modern concepts like Characterization of Photonic Crystals in Photopolymer SZ2080 by Two-Photon Polymerization, Waves Moving in a Periodic Potential, and Optical Quantum metamaterials. Two-photon polymerization for fabricating three-dimensional subdiffraction-limited structures has been discussed. Experimental and Computed Curves of line thickness (nm) vs feed rate (μm/s) have been technically analyzed. Waves moving in a Periodic Potential and Photonic Crystals have been technically discussed. In addition, Optical Quantum metamaterials have been discussed in terms of quantum coherence, and quantum dots with emphasis on cavity array metamaterial.

scholarly journals Efficient realization of infrared coherent radiation by the method of parametric light amplification in nonlinear photonic crystals

2021 ◽  
Vol 2131 (5) ◽  
pp. 052092
Author(s):  
O Sabirov ◽  
N Akbarova ◽  
N Atadjanova ◽  
U Sapaev
Keyword(s):  
Photonic Crystals ◽  
Domain Size ◽  
Laser Pulses ◽  
Signal Wave ◽  
Third Order ◽  
Light Amplification ◽  
Nonlinear Photonic Crystals ◽  
Short Laser Pulses ◽  
Optimal Values ◽  
Efficient Realization

Abstract The process of parametric amplification of light from short laser pulses in nonlinear photonic crystals is analyzed numerically. The calculations were carried out taking into account the effects of the dispersion of the medium up to the third order and cubic nonlinearity of the Kerr type. It is shown that a change in the size of domains can significantly affect the formation of a signal wave pulse. On the basis of the results obtained, we analyzed the optimal values of the domain size at which the efficient energetic generation of the signal wave is observed.

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