Academic literature on the topic 'Laser writer'
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Journal articles on the topic "Laser writer"
Onda, Hajime, Akinobu Asahara, and Shoji Fujii. "Development of Laser Beam Writer." Journal of the Japan Society for Precision Engineering 58, no. 11 (1992): 1837–42. http://dx.doi.org/10.2493/jjspe.58.1837.
Full textFu, Xing, Hui Qi, Yu Wen Zhao, and Dong Xu. "Experimental Study on Formation of the Microstructure on Copper Film Using Ultraviolet Nanosecond Laser." Applied Mechanics and Materials 870 (September 2017): 395–400. http://dx.doi.org/10.4028/www.scientific.net/amm.870.395.
Full textRhee, Hyug Gyo, and Yun Woo Lee. "Linewidth Enhancement in Direct Laser Writer by Using an Interference Phenomenon." Key Engineering Materials 516 (June 2012): 198–202. http://dx.doi.org/10.4028/www.scientific.net/kem.516.198.
Full textXie, Yongjun, Zhenwu Lu, and Fengyou Li. "Lithographic fabrication of large curved hologram by laser writer." Optics Express 12, no. 9 (2004): 1810. http://dx.doi.org/10.1364/opex.12.001810.
Full textXie, Yongjun, Zhenwu Lu, and Fengyou Li. "Method for correcting the joint error of a laser writer." Optics Express 11, no. 9 (May 5, 2003): 975. http://dx.doi.org/10.1364/oe.11.000975.
Full textLiang, Y. Y., F. Tian, J. B. Luo, and G. G. Yang. "Design of High Precise Focusing System in Laser Direct Writer." Journal of Physics: Conference Series 48 (October 1, 2006): 1031–36. http://dx.doi.org/10.1088/1742-6596/48/1/192.
Full textLu, Zhenwu, Hua Liu, Ruiting Wang, Fengyou Li, and Yichun Liu. "Diffractive axicons fabricated by laser direct writer on curved surface." Journal of Optics A: Pure and Applied Optics 9, no. 2 (January 4, 2007): 160–64. http://dx.doi.org/10.1088/1464-4258/9/2/007.
Full textLaila M, Alif, Pragya Tiwari, Himal Bhatt, and A. K. Srivastava. "Fabrication of frequency selective metamaterial structure using low-cost laser writer." Vacuum 170 (December 2019): 108975. http://dx.doi.org/10.1016/j.vacuum.2019.108975.
Full textZhang, Hongxin, Zhenwu Lu, and Fengyou Li. "Fabrication of a curved linear grating by using a laser direct writer system." Optics Communications 266, no. 1 (October 2006): 249–52. http://dx.doi.org/10.1016/j.optcom.2006.04.067.
Full textRamirez, Jhonattan C., Celio A. Finardi, and Roberto R. Panepucci. "SU-8 GPON Diplexer Based On H-Line Lithography by Direct Laser Writer." IEEE Photonics Technology Letters 30, no. 2 (January 15, 2018): 205–8. http://dx.doi.org/10.1109/lpt.2017.2781803.
Full textDissertations / Theses on the topic "Laser writer"
Codan, Barbara. "New approaches for discrete and continuum analysis of the mechanical behaviour of cell." Doctoral thesis, Università degli studi di Trieste, 2009. http://hdl.handle.net/10077/3099.
Full textLa tesi qui presentata riguarda la meccanica delle cellule. Negli ultimi anni l’interesse della comunità scientifica è stato rivolto a questo aspetto della biologia cellulare, perché, com’è stato dimostrato, all’interno della cellula stimoli meccanici e segnali biochimici sono strettamente correlati, ma ancora non è chiaro il meccanismo che li lega. Le tecniche disponibili si suddividono in due grandi categorie in base al numero di cellule analizzate, ovvero si differenziano in base allo studio su una popolazione cellulare o su singola cellula. Dopo un’attenta analisi delle metodologie disponibili, si è deciso di sviluppare due nuovi metodi. Il primo riguarda la deformazione di un gel poliacrilammidico su cui sono state depositate delle particelle fluorescenti. Questo metodo trae ispirazione dalla deformazione di substrati e dalla traction force microscopy, ovvero dallo studio dello spostamento delle particelle dovuto alla presenza della cellula è possibile ottenere informazioni sulle forze applicate da quest’ultima. Un nuovo dispositivo è stato realizzato ed ha permesso di tirare il gel e quindi deformare una singola cellula e di studiare la risposta alla deformazione. In parallelo a questi studi caratterizzati dall’impiego di un substrato continuo e macroscopico, si è deciso di sviluppare un nuovo dispositivo microelettromeccanico (MEMS), in cui l’aspetto più innovativo è la presenza sullo stesso dispositivo di attuatori, deputati alla deformazione della cellula, e di sensori, che permettono di leggere le componenti della forza esercitata dalla cellula in risposta alla deformazione esercitata con gli attuatori. Per entrambe queste componenti si è scelta la struttura del comb drive. Tale dispositivo è stato progettato seguendo i vincoli costruttivi della tecnologia SOIMUMPs®, che realizza dispositivi MEMS con tecnologia SOI, una delle più adatte allo studio cellulare. Sono state effettuate delle simulazioni agli elementi finiti, in particolare del sensore, in modo da poter valutare la sensibilità, che risulta essere dell’ordine dei µN. Durante la progettazione di questo dispositivo, è sorto il problema del posizionamento della cellula al centro del MEMS. La soluzione arriva dalla localizzazione di spot di proteine, che creano punti di ancoraggio per la cellula. In letteratura sono presenti alcuni lavori sul patterning di proteine, ma nessuno di questi soddisfa i vincoli imposti da un dispositivo tridimensionale quale il MEMS progettato. Un nuovo utilizzo di uno spettroscopio per microraman è stato sviluppato nell’ambito della litografia maskless. Tale tecnica permette di realizzare substrati patternati con risoluzione submicrometrica senza il vincolo di superfici piatte e la presenza di una maschera. Tale tecnica è stata utilizzata per depositare spot di proteine. Sono state testate positivamente la resistenza della fibronectina al processo litografico e la compatibilità di quest’ultima alle cellule dopo il trattamento della litografia. Il risultato finale è stata la realizzazione di spot proteici con geometrie definite dall’utente e dimensioni paragonabili a quelle dei complessi cellulari per l’adesione (focal adhesion).
The subject of this thesis is the mechanics of cell. Recent studies demonstrate that mechanical stimuli and biochemical signals are strictly interconnected in the cell, but these phenomena are not completely understood. Different techniques are available to study the mechanics of cell. They differ for the number of cells analyzed, from cells population to single cell techniques. After an exhaustive analysis of these available methods, two new techniques have been developed. The first one is a combination of substrate deformation and the traction force microscopy. By pulling a polyacrylamide gel, it is possible to obtain information about cell forces, looking at the displacement of fluorescent beads deposited on top of the gel. A new device has been devised and realized and the gel pulled. This technique permits to obtain information on the deformation of a single cell. While this project is characterized by a continuous and macroscopic substrate, a new microscopic device has also been developed. A micro electromechanical system (MEMS) is investigated. The most innovative aspect of the device is the introduction, on the same device, of actuators, which provide cell deformation, and sensors, which permit to read the cell response to the deformation. Both sensors and actuators present a comb drive structure. This new device follows the design rules of the SOIMUMPs® technique; this company provides MEMS device with SOI technology, suitable for the application here presented. The sensor and the actuator have been simulated by finite elements analysis, to evaluate the displacement and the sensitivity, that is in the range of µN. During the development of the MEMS, the problem of cell positioning in the center of the device arose. A solution can be found in the protein patterning. Proteins spots are the connection points between the cell and the substrate. Previous investigations present protein patterning methods, but none of them are suitable for the three dimensional structure of the MEMS and non-flat surfaces. Maskless lithography has been implemented with a Raman spectroscopy microprobe. This technique enables one to deposit proteins on three dimensional structures, such as the MEMS here developed. Tests on fibronectin resistance to the lithographic process and its compatibility with cells have been performed. The final result is proteins spots with geometries defined by the operator and dimensions similar to focal adhesion complex.
XXI Ciclo
1980
Jin, Di. "Phase-shifting techniques for laser direct write systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24165.pdf.
Full textSato, Taku. "Laser assisted ink consolidation for Direct Write Component Fabrication." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.540068.
Full textKingsley, David Michael. "Fabrication and Engineering of 3D Laser Direct Write Microenvironments." Thesis, Rensselaer Polytechnic Institute, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10935067.
Full textThree-dimensional (3D) bioprinting is a rapidly growing field that is particularly well suited for “bottom up” tissue engineering, largely due to its ability to control the 3D shape of the engineered construct, as well as its constituents (e.g., cells and/or material) and their spatial distribution. A variety of nozzle-based techniques have emerged for tissue engineering, and while these excel at building large 3D architectures, they suffer from moderate print resolution and limited printable materials, making them less attractive for smaller, high-resolution constructs. This is due in part to shearing effects and clogging of the nozzle. Thus, alternative printing methods are needed to create smaller constructs requiring high-spatial pattern resolution and size control.
Our laboratory has previously developed a laser-based biofabrication platform, gelatin-based laser direct-write (LDW) as a technique for bioprinting highly viable cells with spatial resolution unmatched by other printing techniques in 2D. In this thesis, a novel single-step technique was developed to extend this platform to fabricate and spatially pattern 3D alginate microbeads. With this new method, we demonstrate excellent size-control of fabricated microbeads by manipulating the beam diameter used for deposition. We further show that deposited beads have excellent pattern registry, and cells within LDW microbeads maintain high cellular viability. Additionally, we demonstrate that this technique is compatible with our laboratory’s 2D laser direct-writing of cells, illustrating the ability to fabricate spatially-precise, hybrid, 2D/3D cultures of cells and cell-loaded microbeads. Within cellular applications, the mechanical properties of the extracellular matrix have become an important feature for regulating behavior. To further develop our control over the cellular microenvironment, we demonstrate our ability to mechanically tune the stiffness of LDW-printed microbeads, by varying the crosslinking divalent cation and cation concentration used in the LDW microbead fabrication process. Microbead mechanical properties were determined using large printed arrays of microbeads (12 × 12 array) to amplify the resistance generated during traditional compression testing. Using this method, we demonstrated microbead mechanical properties could be tuned by adjusting fabrication and crosslinking parameters, to achieve a wide range of elastic moduli, from physiologic to pathologic values. While this was a valuable step to demonstrate our ability to control aspects of the engineered cellular microenvironment, our alginate structures were still largely limited for cellular interaction due to the lack of adhesion ligands. The inability for cells to interact with the alginate prevents migration within the matrix.
To overcome the limitations of the inert alginate of our microbeads, we used an established materials processing approach to produce core-shelled microcapsules. This technique consists of coating the printed microbead with a positively charged polymer (e.g., chitosan or poly-L-lysine), to produce a polyelectrolyte membrane around the bead, then chelating the calcium crosslinking the interior. This resulted in a polymeric shell with an aqueous core entrapping the cellular payload. We found that core-shelled microcapsules from LDW microbeads maintained their pattern fidelity through processing, and encapsulated cells retained high viability. Cancer cells and stem cells encapsulated within these structures were observed to self-assemble to form size-controlled 3D aggregates; tumor spheroids and embryoid bodies, respectively.
In addition to creating conventional core-shelled microcapsules, we demonstrate that LDW’s spatial precision can be leveraged to produce advanced core-shelled structures of customizable planar geometries, by utilizing single microbeads as voxels, and patterning these in overlapping arrays. Using this technique, we were able to create custom geometries, such as microstrands, bifurcations, rectangular mats, and rings, wherein aggregating cells self-assembled to make continuous three-dimensional aggregates that conform to the shape of the structure. Overall, this doctoral thesis research developed a powerful, laser-based method for engineering custom 3D microenvironments, with applications in tumor modeling and regenerative medicine. These advances hold great promise for fabricating the next generation in vitro diagnostics.
Ng, Sandy. "Ultrafast laser written bulk waveguides and gratings." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/MQ53441.pdf.
Full textHuang, Leilei. "Fabrication and characterisation of ultrafast direct laser written waveguides." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:7e40e1ee-fcc3-4797-953d-8be5c7af1334.
Full textKatis, Ioannis. "Laser direct write techniques for the fabrication of paper-based diagnostic devices." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/388397/.
Full textXu, Bojun. "Inkjet printing of silver for direct write applications." Thesis, University of Manchester, 2010. https://www.research.manchester.ac.uk/portal/en/theses/inkjet-printing-of-silver-for-direct-write-applications(8aaa64de-fd4f-4ffa-97df-0fca6977bfdc).html.
Full textChoi, Jiyeon. "Femtosecond laser Written Volumetric Diffractive Optical Elements and Their Applications." Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6230.
Full textPh.D.
Doctorate
Optics and Photonics
Optics
Suyal, Himanshu. "Direct laser-written polymer structures for guided-wave optical interconnects." Thesis, Heriot-Watt University, 2006. http://hdl.handle.net/10399/2154.
Full textBooks on the topic "Laser writer"
Maybe I'll write more later ... maybe. London, England: Austin Macauley Publishers, 2015.
Find full textBennett, G. H. The later life of Lord Curzon of Kedleston--aristocrat, writer, politician, statesman: An experiment in political biography. Lewiston, N.Y: Edwin Mellen Press, 2000.
Find full textMoyise, Steve. The later New Testament writers and scripture: The Old Testament in acts, Hebrews, the Catholic Epistles and Revelation. London: SPCK, 2012.
Find full textMoyise, Steve. The later New Testament writers and scripture: The Old Testament in acts, Hebrews, the Catholic Epistles and Revelation. London: SPCK, 2012.
Find full textCavuoto, James. Laser Write It! Addison-Wesley (C), 1986.
Find full textMoyise, Steve. Later New Testament Writers and Scripture. SPCK Publishing, 2012.
Find full textThoughts to Think about Later : : Write It Now, Unpack Later. Independently Published, 2021.
Find full textHunter, G. K. Shakespeare: the Later Comedies: The Later Comedies (Writers and Their Work). Northcote House Educational Publishers, 1996.
Find full textEller, Jonathan R. Hannes Bok and the Lorelei. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252036293.003.0004.
Full textHardy, Barbara Nathan. James, Henry: The Later Writing (Writers and Their Work). Northcote House Educational Publishers, 1995.
Find full textBook chapters on the topic "Laser writer"
Raiber, A., F. Dausinger, and H. Hügel. "Mikrostrukturierung von Keramiken im Direct-Write-Verfahren mit Festkörperlasern." In Laser in Forschung und Technik / Laser in Research and Engineering, 999–1002. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80263-8_196.
Full textCremin, Teresa, and David Reedy. "Creatively Engaging Writers in the Later Primary Years." In Teaching English Creatively, 90–108. 3rd ed. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003055372-7.
Full textSzameit, Alexander, Felix Dreisow, and Stefan Nolte. "Discrete Optics in Femtosecond Laser Written Waveguide Arrays." In Topics in Applied Physics, 351–88. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23366-1_13.
Full textHeinrich, Matthias, Stefan Nolte, and Alexander Szameit. "Nonlinear Light Propagation in Laser-Written Waveguide Arrays." In Planar Waveguides and other Confined Geometries, 185–205. New York, NY: Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1179-0_8.
Full textArnone, C., and C. Zizzo. "Physical Properties of Laser Written Chromium Oxide Thin Films." In Emerging Technologies for In Situ Processing, 241–47. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-1409-4_25.
Full textStewart, Victoria. "Elizabeth Ferrars (Pseudonym of Morna Doris McTaggart, later Brown, Published as E. X. Ferrars in USA, 1907–1995), 1932: Turn Single (writing as Morna McTaggart)." In 100 British Crime Writers, 161–63. London: Palgrave Macmillan UK, 2020. http://dx.doi.org/10.1057/978-1-137-31902-9_35.
Full textTian, Z., N. R. Quick, and Aravinda Kar. "Laser Direct Write Doping and Metallization Fabrication of Silicon Carbide PIN Diodes." In Silicon Carbide and Related Materials 2005, 823–26. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-425-1.823.
Full textBenayas, A., D. Jaque, A. Ródenas, E. Cantelar, L. Roso, and G. A. Torchia. "Mirrorless Continuous Wave Laser Emission from Nd:YAG Ceramic Femtosecond-Written Waveguides." In Ceramic Transactions Series, 649–54. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2010. http://dx.doi.org/10.1002/9780470640845.ch94.
Full textJudge, Jennifer. "Female as Flesh in the Later Middle Ages and the “Bodily Knowing” of Angela of Foligno." In The Catholic Church and Unruly Women Writers, 9–23. New York: Palgrave Macmillan US, 2007. http://dx.doi.org/10.1057/9780230609303_2.
Full textChardin, Brice, Olivier Pasteur, and Jean-Marc Petit. "An FTL-Agnostic Layer to Improve Random Write on Flash Memory." In Database Systems for Adanced Applications, 214–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-20244-5_21.
Full textConference papers on the topic "Laser writer"
Wilson, Michael A. "Metamorphosis of laser writer." In 10th Annual Symposium on Microlithography, edited by James N. Wiley. SPIE, 1991. http://dx.doi.org/10.1117/12.29749.
Full textKessler, David, Don DeJager, and Mark Noethen. "High Resolution Laser Writer." In OE/LASE '89, edited by Leo Beiser, Stephen L. Corsover, John M. Fleischer, Vsevolod S. Mihajlov, and Ken-Ichi Shimazu. SPIE, 1989. http://dx.doi.org/10.1117/12.952782.
Full textRobichaud, Joseph, John P. Hogan, and Robert Gonsalves. "Pc-Based Image Analysis Of Laser Writer Copy." In OE/LASE '89, edited by Kennard S. Cloud. SPIE, 1989. http://dx.doi.org/10.1117/12.952561.
Full textKobayashi, Hideo, Keishi Asakawa, and Yasunori Yokoya. "Photomask blanks enhancement for the laser reticle writer." In Photomask Japan 1995, edited by Hideo Yoshihara. SPIE, 1995. http://dx.doi.org/10.1117/12.212790.
Full textGrenon, Brian J., D. C. Defibaugh, Donna M. Sprout, Henry Chris Hamaker, and Peter D. Buck. "Technical performance of the ALTA-3000 laser writer." In 14th Annual BACUS Symposium on Photomask Technology and Management, edited by William L. Brodsky and Gilbert V. Shelden. SPIE, 1994. http://dx.doi.org/10.1117/12.195845.
Full textGoltsos, William C., and Sharlene A. Liu. "Polar-coordinate laser writer for binary optics fabrication." In OE/LASE '90, 14-19 Jan., Los Angeles, CA, edited by Ivan Cindrich and Sing H. Lee. SPIE, 1990. http://dx.doi.org/10.1117/12.17934.
Full textGrenon, Brian J., D. C. Defibaugh, Donna M. Sprout, and C. J. Taft. "Manufacturing performance of the ALTA 3000 mask laser writer." In 15th Annual BACUS Symposium on Photomask Technology and Management '95, edited by Gilbert V. Shelden and James N. Wiley. SPIE, 1995. http://dx.doi.org/10.1117/12.228180.
Full textXie, Yongjun, Zhenwu Lu, Fengyou Li, and Zhicheng Weng. "Polar-coordinate laser writer: analysis of exposure dose distribution." In Photonics Asia 2002, edited by Zhicheng Weng, Jose M. Sasian, and Yongtian Wang. SPIE, 2002. http://dx.doi.org/10.1117/12.464067.
Full textBaber, S. Charles. "Computer-generated holography using a high-resolution laser writer." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.wv1.
Full textXiong, Shaomin, Robert Smith, Chanh Nguyen, Youfeng Zhang, and Yeoungchin Yoon. "Air Bearing Pushback in Heat Assisted Magnetic Recording." In ASME 2019 28th Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/isps2019-7503.
Full textReports on the topic "Laser writer"
Guo, Junpeng, Karen Lynn McDaniel, Jeremy Andrew Palmer, Pin Yang, Michelle Lynn Griffith, Gregory Allen Vawter, Marc F. Harris, David Robert Tallant, Ting Shan Luk, and George Robert Burns. Microfabrication with femtosecond laser processing : (A) laser ablation of ferrous alloys, (B) direct-write embedded optical waveguides and integrated optics in bulk glasses. Office of Scientific and Technical Information (OSTI), November 2004. http://dx.doi.org/10.2172/920737.
Full textCheng, Peng, James V. Krogmeier, Mark R. Bell, Joshua Li, and Guangwei Yang. Detection and Classification of Concrete Patches by Integrating GPR and Surface Imaging. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317320.
Full textCheng, Peng, James V. Krogmeier, Mark R. Bell, Joshua Li, and Guangwei Yang. Detection and Classification of Concrete Patches by Integrating GPR and Surface Imaging. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317320.
Full textGledhill, Igle, Richard Goldstone, Sanya Samtani, Keyan Tomaselli, and Klaus Beiter. Copyright Amendment Bill Workshop Proceedings Report. Academy of Science of South Africa (ASSAf), 2022. http://dx.doi.org/10.17159/assaf.2022/0078.
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