scholarly journals Quantitative assessment of nonlinearly absorbed energy in fused silica via time-resolved digital holography

2019 ◽  
Vol 27 (5) ◽  
pp. 7699 ◽  
Author(s):  
Balys Momgaudis ◽  
Viaceslav Kudriasov ◽  
Mikas Vengris ◽  
Andrius Melninkaitis
Keyword(s):  
Quantitative Assessment ◽  
Digital Holography ◽  
Fused Silica ◽  
Absorbed Energy ◽  
Time Resolved

Time-Resolved Investigation of Multiple-Pulse Laser-Induced Bulk Damage in Fused Silica

2019 ◽  
Vol 46 (8) ◽  
pp. 0803001
Author(s):  
曹珍 Zhen Cao ◽  
贺洪波 Hongbo He ◽  
胡国行 Guohang Hu ◽  
赵元安 Yuanan Zhao ◽  
邵建达 Jianda Shao
Keyword(s):  
Pulse Laser ◽  
Fused Silica ◽  
Time Resolved ◽  
Multiple Pulse

scholarly journals Multiscale electronic and thermomechanical dynamics in ultrafast nanoscale laser structuring of bulk fused silica

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Madhura Somayaji ◽  
Manoj K. Bhuyan ◽  
Florent Bourquard ◽  
Praveen K. Velpula ◽  
Ciro D’Amico ◽  
...  
Keyword(s):  
Rarefied Gas ◽  
Void Formation ◽  
Fused Silica ◽  
Heat Diffusion ◽  
Time Resolved ◽  
Plasma Decay ◽  
Laser Structuring ◽  
Decay Times ◽  
Transient Plasma ◽  
Densified Glass

Abstract We describe the evolution of ultrafast-laser-excited bulk fused silica over the entire relaxation range in one-dimensional geometries fixed by non-diffractive beams. Irradiation drives local embedded modifications of the refractive index in the form of index increase in densified glass or in the form of nanoscale voids. A dual spectroscopic and imaging investigation procedure is proposed, coupling electronic excitation and thermodynamic relaxation. Specific sub-ps and ns plasma decay times are respectively correlated to these index-related electronic and thermomechanical transformations. For the void formation stages, based on time-resolved spectral imaging, we first observe a dense transient plasma phase that departs from the case of a rarefied gas, and we indicate achievable temperatures in the excited matter in the 4,000–5,500 K range, extending for tens of ns. High-resolution speckle-free microscopy is then used to image optical signatures associated to structural transformations until the evolution stops. Multiscale imaging indicates characteristic timescales for plasma decay, heat diffusion, and void cavitation, pointing out key mechanisms of material transformation on the nanoscale in a range of processing conditions. If glass densification is driven by sub-ps electronic decay, for nanoscale structuring we advocate the passage through a long-living dense ionized phase that decomposes on tens of ns, triggering cavitation.

scholarly journals Time-resolved shadowgraphs of transient plasma induced by spatiotemporally focused femtosecond laser pulses in fused silica glass

2015 ◽  
Vol 40 (24) ◽  
pp. 5726 ◽  
Author(s):  
Zhaohui Wang ◽  
Bin Zeng ◽  
Guihua Li ◽  
Hongqiang Xie ◽  
Wei Chu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Silica Glass ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Fused Silica ◽  
Time Resolved ◽  
Transient Plasma ◽  
Fused Silica Glass

Optical fatigue investigation with in situ time resolved digital holography

2019 ◽  
Author(s):  
Balys Momgaudis ◽  
Linas Smalakys ◽  
Mikas Vengris ◽  
Andrius Melninkaitis
Keyword(s):  
Digital Holography ◽  
Time Resolved

Time-resolved digital holography: a versatile tool for femtosecond laser-induced damage studies

2009 ◽  
Author(s):  
Andrius Melninkaitis ◽  
Tadas Balciunas ◽  
Andrius Vanagas ◽  
Valdas Sirutkaitis
Keyword(s):  
Femtosecond Laser ◽  
Digital Holography ◽  
Time Resolved ◽  
Versatile Tool ◽  
Laser Induced Damage

Time-resolved observation of energy deposition in fused silica by utrashort laser pulses in single and cumulative regime

2010 ◽  
Author(s):  
Cyril MAUCLAIR ◽  
Konstantin MISHCHIK ◽  
Alexandre MERMILLOD-BLONDIN ◽  
Jörn BONSE ◽  
Arkadi ROSENFELD ◽  
...  
Keyword(s):  
Energy Deposition ◽  
Laser Pulses ◽  
Fused Silica ◽  
Time Resolved

Femtosecond Time-Resolved Off-Axis Digital Holography

2009 ◽  
Author(s):  
T. Balciunas ◽  
A. Melninkaitis ◽  
A. Vanagas ◽  
V. Sirutkaitis
Keyword(s):  
Digital Holography ◽  
Time Resolved

Total and isoform-specific quantitative assessment of circulating fibulin-1 using selected reaction monitoring MS and time-resolved immunofluorometry

2015 ◽  
Vol 9 (7-8) ◽  
pp. 767-775 ◽  
Author(s):  
Martin Overgaard ◽  
Claudia Cangemi ◽  
Martin L. Jensen ◽  
William S. Argraves ◽  
Lars M. Rasmussen
Keyword(s):  
Quantitative Assessment ◽  
Selected Reaction Monitoring ◽  
Reaction Monitoring ◽  
Time Resolved
Sign in / Sign up

Export Citation Format

Share Document