Cover Picture: PhotonicsViews 1/2021

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Editorial

Cautious Optimism for Photonics in 2021: Photonics benefit from being crucial for recession‐proof key markets such as quantum technology, medical, life sciences and defense

• Basil Garabet

• Pages: 1
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Contents: PhotonicsViews 1/2021

• Pages: 2-3
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News: PhotonicsViews 1/2021

• Pages: 4-10
• First Page
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Products: PhotonicsViews 1/2021

• Pages: 11-13
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Communications: PhotonicsViews 1/2021

• Pages: 14-18
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Organizations & Initiatives: PhotonicsViews 1/2021

• Pages: 20-22
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Portrait

“We Are Going to Enable a New Wave of Safe Connectivity”: Portrait of Carlos Abellan, CEO of Quside

• Jose Pozo (EPIC)

• Pages: 23-25
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Industry Report

“Invest in Photonics Now to Fight Infectious Diseases!”: Strong investment will help prevent the death of an unimaginable number of people and prepare us against future pandemics

• Dr Jürgen Popp (Leibniz IPHT)

• Pages: 26-27
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Market Report

Compact Spectrometers: Technologies, Market Trends and Needs: Disruptive chip‐size technologies will play the dominant role for miniature, micro and chip‐sized devices

• Jacek Kulakowski
• Benoît d'Humières (both: Tematys)

• Pages: 28-30
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Technology Report

Photonic Technologies are ‘Invading’ Food Industry: Spectroscopy revolutionizes quality, safety, integrity and taste of food

• Elena Beletkaia (EPIC)

• Pages: 31-33
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Communications: PhotonicsViews 1/2021

• Pages: 34-35
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Spectroscopy

QCL Dual‐Comb Spectroscopy Matures for Applications: What reaction monitoring and process analytics can gain from integrated QCL mid‐IR dual‐comb spectrometers

• Markus Geiser
• Raphael Horvath
• Jakob Hayden (all: IRsweep)

• Pages: 36-39
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MIR Spectroscopy for Continuous Control and Monitoring of Metabolites: Tackling inefficient bioprocesses, one – continuous – step at a time

• Géraldine Baekelandt
• Anja Müller (both: Irubis)

• Pages: 40-44
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A New ‘Hera’ in Hyperspectral Imaging: Low light applications come into range thanks to a novel camera system

• Fabrizio Preda
• Antonio Perri
• Dario Polli (all: Nireos)

• Pages: 45-49
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MIR Spectroscopy: The Medical Diagnosis Swiss Knife? Accessing global information, useful for fast detection of various diseases

• Hugues Tariel
• Olivier Sire (both: Diafir)

• Pages: 50-53
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Microscopy

Could Your Smartphone Analyze the Coronavirus on Surfaces?: Project Chipscope brings nano‐level microscopy into the field

• Koen Mortelmans

• Pages: 54-55
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Biophotonics

Flow Cytometry for Immunology Research: New multiwavelength engines support medical applications

• Ingo Waldeck
• Matthias Schulze (both: Coherent)

• Pages: 56-59
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Optical Measurement Technology

The Hybrid Autocollimator: Upgrading a century‐old instrument technology to lead the way for modern intricate laser & optical measurements

• Oren Aharon (Duma Optronics)
• Itai Vishnia (PLX Inc.)

• Pages: 60-63
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Optical Components

Essential Materials and Processes for Nano‐Imprinted Optics: High refractive index resins for diffractive optics

• Jukka Perento
• Robert Roozeman
• Mikko Poutanen
• Janne Kylmä
• Juha Rantala (all: Inkron Oy)

• Pages: 64-68
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Laser Cutting

And… Cut!: Innovative laser cutting technologies in photovoltaics

• Eckhard Schäfer (Photonics Systems Group)

• Pages: 69-71
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The First Coupling of a Laser Beam to a Water Jet: How a miniature dental hand tool started a revolution in cool laser machining

• Nitin Shankar

• Pages: 72-76
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Preview: PhotonicsViews 1/2021

• Pages: 77
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Preview: Special Issue

• Pages: 78-79
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Calendar

• Pages: 80
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Meetings: PhotonicsViews 1/2021

• Pages: 81-84
• First Page
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Buyers' Guide

• Pages: 85-87
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Index & Masthead

Company Index

• Pages: 89
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Cover Picture: PhotonicsViews S1/2021

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Contents: PhotonicsViews S1/2021

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Editorial

Things Are Moving Forward: No Laser Applications Forum, no face‐to‐face meetings, but R&D continues!

• Peer Woizeschke

• Pages: 1

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Process Monitoring and Quality Assurance

Process Monitoring

Online Monitoring in WAAM: Using a two colored pyrometric camera for temperature field monitoring in wire arc additive manufacturing

• Christoph Halisch
• Tim Radel
• Dieter Tyralla
• Thomas Seefeld

• Pages: 2-3
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• References

Optical Measurement Technology

Digital Holographic Measurement System: Robust digital holographic measurement system for production environments

• Fabian Thiemicke
• Achim Gesierich
• Wansong Li
• Claas Falldorf
• Ralf B. Bergmann

• Pages: 4-5
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Additive Manufacturing

Melt Pool Width Monitoring: In‐situ measurement of the melt pool width in powder bed fusion processes

• Raik Dörfert
• Dieter Tyralla

• Pages: 6-7
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Optical Measurement Technology

Measurement of High‐Precision Components: Testing of specular surfaces with phase‐measuring deflectometry

• Jonas Bartsch

• Pages: 8-9
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Process Monitoring

Characterization of the Powder Jet in LMD Processes

• Dieter Tyralla
• Annika Bohlen
• Thomas Seefeld

• Pages: 10-11
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Additive Manufacturing

Process Monitoring

Closed‐Loop Control of Penetration Depth in Wire‐Based Laser Cladding

• Dieter Tyralla
• Thomas Seefeld

• Pages: 12-13
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Additive Manufacturing

Directed Energy Deposition with Aluminum Alloy: Directed energy deposition of high‐strength aluminum alloy with local hard particle reinforcement

• Anika Langebeck

• Pages: 14-15
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Laser Cladding

Hard Particle Reinforcement for Micro‐forming Tools: Hard particle reinforcement of microforming tools via laser melt injection for improved wear resistance

• Anika Langebeck

• Pages: 16-17
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Surface Modification

Laser Micromachining

Laser Chemical Machining with High Process Pressure: Increase of the removal rate in laser chemical machining by increasing the process pressure

• Marcel Simons
• Tim Radel

• Pages: 18-19
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Laser Melt Injection

Generating MMC Coatings by Laser Melt Injection at High Process Speeds: Reinforcing highly thermally conductive copper tools for pressure die casting by fused tungsten carbide particles

• Philipp Warneke

• Pages: 20-21
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Laser Materials Processing

Increased Laser Polishing Rates of LPBF Components: High path overlaps to reduce surface features at laser polishing of LPBF components with high process speeds

• Lucas‐H. Beste
• Florian Schadewald
• Tim Radel
• Brodan Richter
• Patrick J. Faue
• Frank E. Pfefferkorn
• Frank Vollertsen

• Pages: 22-23
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Laser Micromachining

Laser Structuring of PVD Multilayer Systems: Enhancement of tribological properties by generation of dimple arrays

• Andreas Stephen
• Tim Radel

• Pages: 24-25
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Metal‐Joining

Process Monitoring

Implementation of a Synchronized Multi‐method Process Observation in Deep Penetration Laser Welding

• Ronald Pordzik
• Peer Woizeschke

• Pages: 26-27
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Laser Materials Processing

Laser Brazing with Wire Oscillation: A new approach for increasing the optical seam edge quality

• Thorsten Mattulat
• Peer Woizeschke

• Pages: 28-29
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Laser Keyhole Brazing: Energy‐efficient brazing using the deep penetration effect in combination with two‐dimensional beam oscillation

• Insa Henze
• Peer Woizeschke

• Pages: 30-31
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Buyers' Guide

• Pages: 32-34
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Index & Masthead

• Pages: 37
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