Laser Micromachining of Transparent Dielectrics – Glass and Quartz Using Nano Short Pulsed Nd: YVO4 Laser Harmonics
By Shiva Gadag, Radovan Kovacevic and Nilesh Ramani
Glass, Quartz, and Silicon are made out of sand grains consisting of Silica, SiO2. Silicon and Glass are two basic building blocks which go hand-in-hand in the fabrication of optoelectronics and microelectronics device for MEMS and Biomedical microdevice applications such as charge coupled device, lab-on-a-chip, microsensors, microfluidic arrays, PV solar cells etc.
Miniaturization of microelectronics device is the driving force for laser micromachining of transparent dielectric Glass, Quartz and semiconductor Silicon materials. The dawn of digital era has diminished the dimensions of digital devices to micron and submicron scale resulting in shrinking the […]
In 1997, John O’Connell and Ronald Schaeffer founded PhotoMachining, Inc., a world leader in precision micromachining applications.
The company specializes in the use of Ultraviolet (UV) and Ultra Short Pulse (USP) lasers. Their lasers come in
a wide variety of wavelengths, which enables them to provide the laser industry with laser micromachining, contract manufacturing, and laser micro machining systems for industrial applications specific to customer requests.
“The development of laser technology has occurred to a great extent over the last 20 years and we have always tried to have the newest lasers available,” said Dr. Ronald Schaeffer, Chief Executive Officer with PhotoMachining. […]
Laser Institute of America Presents Additive Manufacturing: Trends in North America Session at World of Photonics Congress 2017
As part of the World of Photonics Congress’s Additive Manufacturing subconference at LiM 2017, North American laser manufacturing leaders shared a comprehensive look at the latest developments and innovations.
ORLANDO, FL – The Laser Institute of America (LIA) presented its 90 minute session, AM: Trends in North America, on Wednesday, June 28, 2017 at the International Congress Center in Munich, Germany. The session was part of the Additive Manufacturing subconference of Lasers in Manufacturing (LiM) 2017 at the World of Photonics Congress Lasers in Manufacturing event, held from June 26-29, 2017 and organized by the German Scientific Laser Society […]
Held from October 22-26 in Atlanta, ICALEO® 2017 attendees will review state-of-the art updates in laser materials processing and predict where the future will lead
FOR IMMEDIATE RELEASE
ORLANDO, FL — Laser Institute of America (LIA), the professional society for lasers, laser applications and laser safety worldwide, announces that registration is now open for the 2017 International Congress on Applications of Lasers & Electro-Optics (ICALEO®) Conference.
Held this year from October 22-26 at the Sheraton Atlanta Hotel in Atlanta, Georgia, the 36th edition of the conference continues its legacy as the leading source of technical information in the laser industry, dedicated to the […]
Written By: Jamie King
Laser Institute of America’s (LIA) International Laser Safety Conference (ILSC®) was held from March 20-23, 2017 at the Sheraton Atlanta Airport in Atlanta, Georgia.
With over 200 laser safety professionals from around the world attending, medical and industrial workers from novice to expert discussed everything from laser generated air pollution to non ionizing radiation. Held concurrently with a full week of meetings by laser standards committees and punctuated by a host of networking events, ILSC 2017 deftly balanced technical and practical information through over 80 presentations and plenaries.
The day before the official kickoff of the conference, […]
By Oleg Raykis
Today there exist a number of technologies for additive manufacturing of components.
The two most prominent types utilizing lasers for generating parts out of metals are either powder bed based solutions or direct energy deposition, often referred to as laser metal deposition. As a company Laserline focuses mainly on the second type. Depending on the application it allows you to produce larger part sizes with higher productivity (deposition rates and therefore higher productivity) due to the fact of not being limited by the size of the building chamber as it would be in the case of a powder […]
By Thomas Gruenberger
Key differentiation criteria for Additive Manufacturing (AM) technologies are freedom of design, cost advantage, customization, and time to market.
Direct metal laser sintering (DMLS) AM technology is ideal for serial production for industries like aerospace.
Setting up a process means mapping the input parameters (e.g. machine and process parameters and part geometry) to output parameters (part properties like density, tightness, surface quality). An in-situ non-destructive measurement of part properties like density is not possible, so indirect measurements have to be performed. Information from the process – process emissions, melt pool size, melt pool dynamics, and temperature distribution – […]
By Lindsay Weaver
A company known for its high-speed polygon scanners and expertise, Precision Laser Scanning, LLC was founded by George Helser in 2015. Helser has more than 25 years of experience in optics, including one patent, and 11 years of experience with high-speed polygon scanners.
Precision Laser Scanning is focused on high-speed laser scanning up to hundreds of meters per second. The company most notably provides polygon scanners and related optics. With today’s fastest Ultrafast / Ultra-Short-Pulse lasers, polygon scanners are the solution for reaching the full potential of the lasers. The company also manufactures advanced controllers and SOS detection […]
By Karl Schulmeister
The classification of lasers by the product’s manufacturer – from Class 1 to Class 4 – is a valuable means to provide the end user with simplified information about the potential hazards to the eye and skin.
The concept of product classification can be considered a success story. Developed in the USA by the CDRH in the 1970s, it has been accepted internationally for more than 30 years, based on the standard IEC 60825-1. While the basic system of classification has remained unchanged since its inception, some adjustments were necessary over the years and will also be necessary […]
KUNIHIKO WASHIO, TAKASHI KAYAHARA, YOSHIHIRO EMORI AND AKIRA FUJISAKI
Thin metallic sheets made of aluminum or steel with a thickness of 1 to 2 mm are often used as laser guard materials. However, metallic laser guards are easily penetrated by high power laser irradiation due to quick melting.
Therefore, their protection times are short. Current problems of metallic laser guards are: (1) A tendency toward generating a large through hole due to quick melting if irradiated with high-power laser; (2) Protection times are significantly influenced by surface reflectivity conditions and reflectivity changes over time.
Contrary to ordinary metals, pitch-type carbon fibers have […]