Femtosecond laser microfabrication

Femtosecond Materials Processing I: Transparent and soft materials, at Tsing Hua Univeristy (Beijing, China), Wednesday, December 17, 2014:
The intersection of materials research and ultrafast optical science is producing many valuable fundamental scientific results and applications, and the trend is expected to evolve as new and exciting discoveries are made. Femtosecond laser micromachining presents unique capabilities for three-dimensional, material-independent, sub-wavelength processing. At the same time the surface processing of materials permits the creation of novel materials that cannot (yet) be created under other conditions. In the first part of this talk we will discuss how when the ultashort laser pulses are focused... Read more about Femtosecond Materials Processing I: Transparent and soft materials
Laser-induced microexplosions: creating stellar conditions on an optical bench, at Condensed Matter Seminar, Old Dominion University (Norfolk, VA), Friday, April 9, 1999:
Using femtosecond laser pulses we study the effects of intense laser radiation on transparent materials. By tightly focusing these laser pulses below the surface of transparent materials, we initiate highly nonlinear absorption processes which produce a dense, highly-excited plasma inside the sample. The high density, tightly-confined plasma leads to a micron-sized explosion within the material, with temperatures and pressures approaching stellar conditions. We have recently shown that it is possible to create internal submicron-sized structures by optically initiating microexplosions inside... Read more about Laser-induced microexplosions: creating stellar conditions on an optical bench
Femtosecond micromachining of transparent materials, at OSA 2000 Annual Meeting (Providence, RI), Tuesday, October 24, 2000:
By tightly-focusing femtosecond laser pulses, we achieve the intensity required for permanent structural change in transparent materials with only nanojoules of energy. We discuss the mechanisms and morphology of bulk structural changes produced by femtosecond laser pulses, and describe recent work on the direct writing of photonics devices using only a laser oscillator.
Femtosecond Laser Micromachining: Applications in Technology and Biology, at Physics Colloquium, UMass Lowell (Lowell, MA), Wednesday, October 30, 2002:
When femtosecond laser pulses are focused tightly into a transparent material, the intensity in the focal volume can become high enough to cause nonlinear absorption of laser energy. The absorption, in turn, can lead to permanent structural or chemical changes. Such changes can be used for micromachining bulk transparent materials. Applications include data storage and the writing of waveguides and waveguide splitters in bulk glass, fabrication of micromechanical devices in polymers, and subcellular photodisruption inside single cells. In this talk we will review recent results obtained in... Read more about Femtosecond Laser Micromachining: Applications in Technology and Biology
Femtosecond laser micromachining of glass for photonics applications, at Glass & Optical Materials Division Fall 2004 Meeting (Cape Canaveral, FL), Monday, November 8, 2004:
When femtosecond laser pulses are focused tightly into a transparent material, the intensity in the focal volume can become high enough to cause nonlinear absorption of laser energy. The absorption, in turn, can lead to permanent structural or chemical changes. Such changes can be used for micromachining bulk transparent materials. Applications include data storage and the writing of waveguides and waveguide splitters in bulk glass, fabrication of micromechanical devices in polymers, and subcellular photodisruption inside single cells. In this talk we will review recent results obtained in... Read more about Femtosecond laser micromachining of glass for photonics applications
Femtosecond laser micro and nano engineering for photonics and biology, at 4th International Congress on Laser Advanced Materials Processing (LAMP 2006) (Kyoto, Japan), Tuesday, May 16, 2006:
The interaction between intense laser pulses and transparent materials is an important research area, both for its intrinsic scientific value and for the technological applications that it feeds. Intense femtosecond pulses enable highly localized material modification in virtually any material, and thus femtosecond lasers are excellent tools for fabricating optical microstructures. Because of the nonlinear interaction between the femtosecond laser pulse and the medium, the interaction is confined to the focal volume, allowing precise machining in three dimensions in the bulk of the sample. In... Read more about Femtosecond laser micro and nano engineering for photonics and biology
Femtosecond laser micromachining, at KAIST (Daedeok Innopolis, Daejeon, South Korea), Thursday, January 12, 2012:
When femtosecond laser pulses are focused tightly into a transparent material, the intensity in the focal volume can become high enough to cause nonlinear absorption of laser energy. The absorption, in turn, can lead to permanent structural or chemical changes. Such changes can be used for micromachining bulk transparent materials. Applications include data storage and the writing of waveguides and waveguide splitters in bulk glass, fabrication of micromechanical devices in polymers, and subcellular photodisruption inside single cells.
Laser induced microexplosions and applications in laser micromachining, at Annual Meeting of the Stanford Photonics Research Center, Standord University (Palo Alto, CA), Saturday, September 15, 2001:
When femtosecond laser pulses are focused tightly into a transparent material, the intensity in the focal volume can become high enough to cause nonlinear absorption of laser energy. The absorption, in turn, can lead to permanent structural or chemical changes. Such changes can be used for micromachining bulk transparent materials. Applications include data storage and the writing of waveguides and waveguide splitters in bulk glass, fabrication of micromechanical devices in polymers, and subcellular photodisruption inside single cells. In this talk we will review recent results obtained in... Read more about Laser induced microexplosions and applications in laser micromachining
Femtosecond laser micromachining: Applications in photonics and biology, at XIX Laser Science Conference (Tucson, AZ), Thursday, October 9, 2003:
When femtosecond laser pulses are focused tightly into a transparent material, permanent structural or chemical changes occur. These changes can be used for micromachining bulk transparent materials. A number of applications in the fabrication of micro-optical devices and in biology and medicine will be discussed.
Fundamentals and Applications of Femtosecond Laser Micromachining of Glass, at First Conference on Advances in Optical Materials (Tucson, AZ), Wednesday, October 12, 2005:
When femtosecond laser pulses are focused tightly into a transparent material, the intensity in the focal volume can become high enough to cause nonlinear absorption of laser energy. The absorption, in turn, can lead to permanent structural or chemical changes. Such changes can be used for micromachining bulk transparent materials. Applications include data storage and the writing of waveguides and waveguide splitters in bulk glass, fabrication of micromechanical devices in polymers, and of all-optical sensors.
Femtosecond laser micromachining, at Physics Seminar, Macquarie University (Sydney, Australia), Monday, March 30, 2009:
When femtosecond laser pulses are focused tightly into a transparent material, the intensity in the focal volume can become high enough to cause nonlinear absorption of laser energy. The absorption, in turn, can lead to permanent structural or chemical changes. Such changes can be used for micromachining bulk transparent materials. Applications include data storage and the writing of waveguides and waveguide splitters in bulk glass, fabrication of micromechanical devices in polymers, and subcellular photodisruption inside single cells.

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