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| 1 | High-aspect 3D two-photon polymerization structuring with widened objective working range (WOW-2PP)显示文摘We developed a novel two-photon polymerization(2PP)configuration for fabrication of high-aspect three-dimensional(3D)structures,with an overall height larger than working distance of the microscope objective used for laser beam focusing into a photosensitive material.This method is based on a modified optical 2PP setup,where a microscope objective(1003 high N.A.),immersion oil and cover glass can be moved together into the photosensitive material,resulting in an effective higher and wider objective working range(WOW-2PP).The proposed technique enables the fabrication of high-aspect structures with sub-micrometer process resolution.3D structures with a height of 7 mm are demonstrated,which could hardly be built with the conventional 2PP set-up due to refractive index mismatch and laser beam disturbances. | Kotaro Obata Ayman El-Tamer Lothar Koch Ulf Hinze Boris N Chichkov | 2013 | Light(Science & Applications)2013，2，1： | 7 |
| 2 | Laser-assisted bioprinting at different wavelengths and pulse durations with a metal dynamic release layer:A parametric study显示文摘For more than a decade,living cells and biomaterials(typically hydrogels)are printed via laser-assisted bioprinting.Often,a thin metal layer is applied as laser-absorbing material called dynamic release layer(DRL).This layer is vaporized by focused laser pulses generating vapor pressure that propels forward a coated biomaterial.Different lasers with laser wavelengths from 193 to 1064 nanometer have been used.As a metal DRL gold,silver,or titanium layers have been used.The applied laser pulse durations were usually in the nanosecond range from 1 to 30 ns.In addition,some studies with femtosecond lasers have been published.However,there are no studies on the effect of all these lasers parameters on bioprinting with a metal DRL,and on comparing different wavelengths and pulse durations–except one study comparing 500 femtosecond pulses with 15 ns pulses.In this paper,the effects of laser wavelength(355,532,and 1064 nm)and laser pulse duration(in the range of 8 to 200 ns)are investigated.Furthermore,the effects of laser pulse energy,intensity,and focal spot size are studied.The printed droplet volume,hydrogel jet velocity,and cell viability are analyzed. | Lothar Koch Ole Brandt Andrea Deiwick Boris Chichkov | 2017 | International Journal of Bioprinting2017，3，1： | 3 |
| 3 | Femtosecond, picosecond and nanosecond laser ablation of solids 显示文摘 | CHICHKOV B N MOMMA C NOLTE S | 1996 | Applied Physics A1996，63，： | 1 |
| 4 | Femtosecond, picosecond and nanosecond laser ablation of solids显示文摘 | Chichkov B N Momma C Nolte S | 1996 | Appl Phys A-Mater Sci Proc1996，63，2： | 1 |
| 5 | Two-Photon Polymerization: A new approach to micromachining显示文摘 | Ostendorf A Chichkov B N | 2006 | Photonics Spectra2006，40，10： | 1 |
| 6 | High-order parametric amplifiers显示文摘 | Chichkov B N Wellegehausen B | 1999 | Opt Soc Am1999，16，： | 1 |
| 7 | Short-pulse laser ablation of solid targets 显示文摘 | MOMMA C CHICHKOV B N MOLTE S | 1996 | Opt Commun1996，129，： | 1 |
| 8 | Femtosecond, picsoecond and nanosecond laser ablation of solids显示文摘 | Chichkov B N Momma C Nolte S | 1996 | Applied Physics A1996，63，2： | 1 |
| 9 | Nanostructuring with spatially localized femtoseeond laser pulses显示文摘 | Nolte S Chichkov B N Welling H | 1999 | Opt Lett1999，24，13： | 1 |
| 10 | Femtosecond, picosecond and nanosecond laser ablation of solids显示文摘 | CHICHKOV B MOMMA C NOLTE S | 1996 | Applied Physics A1996，63，2： | 1 |
| 11 | Femtosecond, picosecond and nanosecond laser ablation of solids显示文摘 | CHICHKOV B N MOMMA C NOLTE S | 1996 | Applied Physics A: Materials Science and Processing1996，63，2： | 1 |
| 12 | Femto-second,picosecond and nanosecond laser ablation of solids显示文摘 | Chichkov B N Momma C Nolte S | | 0，，： | 1 |
| 13 | Far-field and near- field material processing with femtosecond laser pulses 显示文摘 | Korte F Nohe S Chichkov B N | 1999 | Applied Physics A : Materials Science & Processing1999，69，1： | 1 |
| 14 | Femto-second, picosecond, nanosecond laser ablation of solids显示文摘 | CHICHKOV N B MOMMA C NOLTE S | 1996 | Appl Phys:A1996，63，2： | 1 |
| 15 | Rapid prototyping of ossicular replacement prostheses显示文摘 | Ovsianikov A Chichkov B Adunka O | 2007 | Applied surface science2007，253，15： | 1 |
| 16 | Femtosecond, picosecond and nanosecond laser ablation of solids显示文摘 | B. N. Chichkov C. Momma S. Nolte F. Alvensleben A. Tünnermann | 1996 | Applied Physics A Materials Science & Processing1996，，2： | 1 |
| 17 | Far-field and near- field material processing with femtosecond laser pulses 显示文摘 | Korte F Nolte S Chichkov B N | 1999 | Appl Phys A1999，69，7： | 1 |
| 18 | Femtosecond, picosecond and nanosecond laser ablation of solids显示文摘 | CHICHKOV B N MOMMA C NOLTE S | 1996 | Applied Physics A: Materials Science and Processing1996，63，2： | 1 |
| 19 | Femtosecond, picosecond and nanosecond laser ablation of solids显示文摘 | B. N. Chichkov C. Momma S. Nolte F. Alvensleben A. Tünnermann | 1996 | Applied Physics A Materials Science & Processing1996，，2： | 1 |
| 20 | Femtoaecond, picosecond and nonosecond laser ablation of solids 显示文摘 | CHICHKOV B N MOMMA C NOLTE S | 1996 | Appl Plays1996，63，： | 1 |
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