Transmission electron microscopy studies of femtosecond laser induced modifications in quartz

Gorelik, Tatiana E.; Will, Matthias; Nolte, Stefan; Tuennermann, Andreas; Glatzel, Uwe

doi:10.1007/s00339-002-1813-x

Cited by 128 publications

(55 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Unchanged state of the reflectance spectrum indicates that notwithstanding a widely spreading hypnosis of melting the mechanism of YAG crystal modification under low repetition rate exposition differs from those taking place in glasses and crystalline quartz (Gorelik, 2003). The following simple estimation of crystal heating under exposition by one femtosecond pulse supports this statement.…”

Section: Wwwintechopencommentioning

confidence: 72%

“…As a rule refractive index change is negative in the exposed region. For example, a widely accepted point of view relays on the assumption that a crystal undergoes amorphisation in the exposed region, and this causes stresses and positive refractive index change in the surrounding area (Gorelik, 2003;Apostolopoulos, 2004). Thus a waveguide is usually created in the area adjacent to tracks written by femtosecond beam.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Femtosecond Fabrication of Waveguides in Ion-Doped Laser Crystals

Охримчук¹

2010

Coherence and Ultrashort Pulse Laser Emission

View full text Add to dashboard Cite

Section: Wwwintechopencommentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Femtosecond Fabrication of Waveguides in Ion-Doped Laser Crystals

Охримчук¹

2010

Coherence and Ultrashort Pulse Laser Emission

View full text Add to dashboard Cite

“…Optical waveguides can nevertheless be created on the sides of the modified region, where stresses induce a refractive index increase [45,46].…”

Section: Review Articlementioning

confidence: 99%

Femtosecond laser microstructuring: an enabling tool for optofluidic lab‐on‐chips

Osellame

Hoekstra

Cerullo

et al. 2011

Laser & Photonics Reviews

287

226

View full text Add to dashboard Cite

This paper provides an overview of the rather new field concerning the applications of femtosecond laser microstructuring of glass to optofluidics. Femtosecond lasers have recently emerged as a powerful microfabrication tool due to their unique characteristics. On the one hand, they enable to induce a permanent refractive index increase, in a micrometer-sized volume of the material, allowing single-step, three-dimensional fabrication of optical waveguides. On the other hand, femtosecond-laser irradiation of fused silica followed by chemical etching enables the manufacturing of directly buried microfluidic channels. This opens the intriguing possibility of using a single laser system for the fabrication and three-dimensional integration of optofluidic devices. This paper will review the state of the art of femtosecond laser fabrication of optical waveguides and microfluidic channels, as well as their integration for high sensitivity detection of biomolecules and for cell manipulation.

show abstract

“…1(b), line (I), and consequently waveguiding. 4 Femtosecond laser writing was also performed using astigmatic beam focusing optics in order to create symmetrical circularly damaged areas; 3 nevertheless, the best light confinement was observed near the tips of asymmetrically damaged areas (Fig. 2).…”

Section: Femtosecond-irradiation-induced Refractive-index Changes Andmentioning

confidence: 99%

Femtosecond-irradiation-induced refractive-index changes and channel waveguiding in bulk Ti3+:Sapphire

Apostolopoulos

Laversenne

Colomb

et al. 2004

Applied Physics Letters

106

View full text Add to dashboard Cite

We have employed femtosecond laser writing in order to induce refractive-index changes and waveguides in Ti3+-doped sapphire. Doping the sapphire crystal with an appropriate ion significantly reduces the threshold for creating structural changes, thus enabling the writing of waveguide structures. Passive and active buried channel waveguiding is demonstrated and images of the guided modes, propagation-loss values, fluorescence spectra, and output efficiencies are presented. The guiding area is located around the laser-damaged region, indicating that the guiding effect is stress induced. Refractive-index changes are measured by digital holography. Proper active doping should enable femtosecond processing and waveguide writing in various crystalline materials.

show abstract

Transmission electron microscopy studies of femtosecond laser induced modifications in quartz

Cited by 128 publications

References 0 publications

Femtosecond Fabrication of Waveguides in Ion-Doped Laser Crystals

Femtosecond Fabrication of Waveguides in Ion-Doped Laser Crystals

Femtosecond laser microstructuring: an enabling tool for optofluidic lab‐on‐chips

Femtosecond-irradiation-induced refractive-index changes and channel waveguiding in bulk Ti3+:Sapphire

Contact Info

Product

Resources

About