Micromachines, 2021 Sapphire and silicon carbide substrates are used for growth of the III-N group heterostructures to obtain the electronic devices for high power and high frequency applications.
Simonas Indrišiūnas +3 more
doaj +1 more source
Femtosecond laser induced damage threshold and incubation in l-threonine aminoacid crystal
Optical Materials: X, 2023 l-threonine aminoacid crystals exhibit high second-order optical nonlinearities that can be exploited for second harmonic generation, optical parametric amplification, and optical parametric oscillation.
L.K. Nolasco +5 more
doaj +1 more source
Impact of open de-ionized water thin film laminar immersion on the liquid immersed ablation threshold and ablation rate of features machined by KrF excimer laser ablation of bisphenol A polycarbonate [PDF]
, 2009 Debris control and surface quality are potential major benefits of sample liquid immersion when laser micromachining; however, the use of an immersion technique potentially modifies the ablation mechanism when compared to an ambient air interaction.
C.F. Dowding +23 more
core +2 more sources
Direct Integration of Micromachined Pipettes in a Flow Channel for Single DNA Molecule Study by Optical Tweezers [PDF]
, 2001 We have developed a micromachined flow cell consisting of a flow channel integrated with micropipettes. The flow cell is used in combination with an optical trap setup (optical tweezers) to study mechanical and structural properties of λ-DNA molecules ...
Bennink, Martin L. +11 more
core +2 more sources
Laser surface texturing of a WC-CoNi cemented carbide grade: surface topography design for honing application [PDF]
, 2018 Abrasive effectiveness of composite-like honing stones is related to the intrinsic surface topography resulting from the cubic boron nitride (CBN) grains protruding out of the metallic matrix.
Bähre, Dirk +2 more
core +2 more sources
Micromachining of AlN and Al2O3 Using Fiber Laser
Micromachines, 2014 We report on high precision high speed micromachining of Al2O3 and AlN using pulsed near infrared fiber laser. Ablation thresholds are determined to be 30 J/cm2 for alumina and 18 J/cm2 for aluminum nitride.
Florian Preusch +2 more
doaj +1 more source
Laser micromachining of diamond: A viable photonic and optofluidic platform [PDF]
EPJ Web of Conferences, 2022 We describe how the ultrafast laser micromachining technique applied with different writing methods can be used for the creation of various building blocks essential for the realization of a photonic and optofluidic diamond platform.
Jedrkiewicz Ottavia +6 more
doaj +1 more source
Micromachining of Invar Foils with GHz, MHz and kHz Femtosecond Burst Modes
Micromachines, 2020 In this work, a burst mode laser is used for micromachining of 20 µm–250 µm thick Invar (Fe64/Ni36) foils. Holes were drilled by firing multiple pulses transversely onto the sample without moving the beam (percussion drilling).
Simas Butkus +4 more
doaj +1 more source
Surface micromachined membranes for tunnel transducers [PDF]
, 1997 We have developed low-temperature surface micromachining procedures for the fabrication of suspended SiO2/Si3N4 membranes. This fabrication method was integrated with electron beam lithography, anisotropic ion etching, and electroplating to construct ...
George, Thomas +2 more
core +1 more source
THz Metamaterial Characterization Using THz-TDS [PDF]
, 2000 The purpose of this chapter is to familiarize the reader with metamaterials and describe terahertz (THz) spectroscopy within metamaterials research. The introduction provides key background information on metamaterials, describes their history and their ...
Kodama, Christopher H. +1 more
core +4 more sources