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Photosensitive

Materials Processing & Industrial Applications

Materials Processing & Industrial Applications

…a close approximation to the finished product is desired. Stereolithography (SLA) typically uses a low power UV laser to selectively harden a photosensitive epoxy polymer in a bath to form a part. Key benefits of SLA are high accuracy and smooth surface finish of parts. Related Products MATRIX QS…

Microelectronics

Microelectronics

…HyperRapid NX Related Product Families Laser Machines and Systems Fiber Bragg Grating Writing Excimer lasers enable fiber bragg grating writing. Photosensitivity is a non-linear optical phenomenon to describe a photorefractive effect in an optical fiber (i.e., a change in the value of the refractive…

Laser Focus World - February 2016

Laser Focus World - February 2016

…(to increase the refractive index), which makes it photosensitive in the ultraviolet (UV). Specifically,
photosensitivity means that exposure to
UV light will induce a permanent refractive-index change. In some cases, photosensitivity is created or further increased
by hydrogen…

COHR MaterialsProcessingBrochure 0816revA 3.pdf

COHR MaterialsProcessingBrochure 0816revA 3.pdf

…next laser processing step begins.
SLA typically uses a low power UV wavelength like from a MATRIX UV
laser to selectively harden a photosensitive epoxy polymer in a bath
to form a part. SLM builds up a part from polymer or metal powder by
using a sealed off CO2 laser such as a…

Industrial Laser Solutions - September/October 2015

Industrial Laser Solutions - September/October 2015


the pitch on the intended substrate.
Currently, much of the industry fabricates RDL using "photodefinable" dielectrics. These are photosensitive materials
that are lithographically exposed with the
desired circuit pattern and then wet-developed to remove either the exposed or…

Conference FBG Cohr in Goe 0916.pdf

Conference FBG Cohr in Goe 0916.pdf


4.1 Systems for flexible phase mask writing of FBGs
FBG fabrication usually occurs via the phase mask
method exposing a photosensitive fiber to an interference
fringe pattern created by a phase mask. Directing the excimer laser beam through a phase mask the latter diffracts…

Diode Lasers Enable Diverse Therapeutic Applications

Diode Lasers Enable Diverse Therapeutic Applications

…or pharmaceutical photosensitizer
agent to cause selective cell death. The
photosensitizer is given to the patient
systemically, locally or topically with
the goal of causing preferential accumulation in the target cell type. When the
photosensitizer is illuminated by laser…

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