Faced with advancing climate change, we drastically need to monitor and understand the various sources and sinks of greenhouse gases worldwide in real time. One approach to accomplishing this is to regulate and monitor man-made methane emissions. Laser systems as developed by researchers at Fraunhofer ILT offer ways to do exactly that. At the heart of lidar instruments, they can precisely determine greenhouse gases in the atmosphere with high spatial and temporal resolution, even from great distances, and do so worldwide.
{"title":"Tracking greenhouse gases with a laser","authors":"","doi":"10.1002/phvs.202470411","DOIUrl":"https://doi.org/10.1002/phvs.202470411","url":null,"abstract":"<p>Faced with advancing climate change, we drastically need to monitor and understand the various sources and sinks of greenhouse gases worldwide in real time. One approach to accomplishing this is to regulate and monitor man-made methane emissions. Laser systems as developed by researchers at Fraunhofer ILT offer ways to do exactly that. At the heart of lidar instruments, they can precisely determine greenhouse gases in the atmosphere with high spatial and temporal resolution, even from great distances, and do so worldwide.</p>","PeriodicalId":101021,"journal":{"name":"PhotonicsViews","volume":"21 4","pages":"53-55"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/phvs.202470411","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Similar to laser welding, optical coherence tomography (OCT) simplifies the operation of robot-guided, automated GMA welding by offering seam tracking capabilities thanks to its industry-approved, standardized functions and fieldbus communication. Furthermore, OCT can monitor the quality of weld seam online by measuring the seam topography during GMA welding, eliminating the need for time-consuming and costly off-line weld inspection.
{"title":"OCT for automated conventional welding in the automotive industry","authors":"Nataliya Deyneka Dupriez, Samuel Adolph","doi":"10.1002/phvs.202400024","DOIUrl":"10.1002/phvs.202400024","url":null,"abstract":"<p>Similar to laser welding, optical coherence tomography (OCT) simplifies the operation of robot-guided, automated GMA welding by offering seam tracking capabilities thanks to its industry-approved, standardized functions and fieldbus communication. Furthermore, OCT can monitor the quality of weld seam online by measuring the seam topography during GMA welding, eliminating the need for time-consuming and costly off-line weld inspection.</p>","PeriodicalId":101021,"journal":{"name":"PhotonicsViews","volume":"21 4","pages":"39-43"},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/phvs.202400024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141340250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lea Kroth, René Geiger, Sebastian-Paul Kopp, Katja Tangermann-Gerk
Individualization, shorter product cycles and prototyping are leading to increased use of additive manufacturing in industry. A reliable and versatile process like laser plastic welding is needed to join parts with other additively manufactured or injection molded parts.
{"title":"Flexible laser plastic welding as an addition to AM","authors":"Lea Kroth, René Geiger, Sebastian-Paul Kopp, Katja Tangermann-Gerk","doi":"10.1002/phvs.202400015","DOIUrl":"https://doi.org/10.1002/phvs.202400015","url":null,"abstract":"<p>Individualization, shorter product cycles and prototyping are leading to increased use of additive manufacturing in industry. A reliable and versatile process like laser plastic welding is needed to join parts with other additively manufactured or injection molded parts.</p>","PeriodicalId":101021,"journal":{"name":"PhotonicsViews","volume":"21 4","pages":"44-47"},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/phvs.202400015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The AI assistants that have emerged in the past couple of years open up new domains of knowledge, allowing us to be educated and guided in many new and versatile domains. However, for domain experts such as optical designers, scientists, and photonics engineers, they often have limitations in their information accuracy and scope. 3DOptix has developed a dynamic approach to overcome these limitations that enables the creation of a proficient optical design copilot. This copilot assists experts in every step of the design process, including conducting precise calculations, searching for components, and simulating actions.
{"title":"Creating advanced photonics AI assistants","authors":"Erez Tepper, Haim Suchowski","doi":"10.1002/phvs.202400014","DOIUrl":"https://doi.org/10.1002/phvs.202400014","url":null,"abstract":"<p>The AI assistants that have emerged in the past couple of years open up new domains of knowledge, allowing us to be educated and guided in many new and versatile domains. However, for domain experts such as optical designers, scientists, and photonics engineers, they often have limitations in their information accuracy and scope. 3DOptix has developed a dynamic approach to overcome these limitations that enables the creation of a proficient optical design copilot. This copilot assists experts in every step of the design process, including conducting precise calculations, searching for components, and simulating actions.</p>","PeriodicalId":101021,"journal":{"name":"PhotonicsViews","volume":"21 4","pages":"27-30"},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/phvs.202400014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Freedom Photonics is a subsidiary of Luminar Semiconductor, a US manufacturer of semiconductor lasers, photodetectors and high-functionality PIC-based products. EPIC's technology manager for quantum technology and PICs Ivan Nikitski interviewed the company's president, Dr Milan Mashanovitch.
Freedom Photonics 是美国半导体激光器、光电探测器和高功能 PIC 产品制造商 Luminar Semiconductor 的子公司。EPIC 量子技术和专用集成电路技术经理 Ivan Nikitski 采访了该公司总裁 Milan Mashanovitch 博士。
{"title":"“In tune with lasers”","authors":"","doi":"10.1002/phvs.202470305","DOIUrl":"https://doi.org/10.1002/phvs.202470305","url":null,"abstract":"<p>Freedom Photonics is a subsidiary of Luminar Semiconductor, a US manufacturer of semiconductor lasers, photodetectors and high-functionality PIC-based products. EPIC's technology manager for quantum technology and PICs Ivan Nikitski interviewed the company's president, Dr Milan Mashanovitch.</p>","PeriodicalId":101021,"journal":{"name":"PhotonicsViews","volume":"21 3","pages":"16-17"},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/phvs.202470305","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141165041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Daniel Holder, Manuel Henn, Matthias Buser, Christian Hagenlocher, Volkher Onuseit, Thomas Graf
Additive manufacturing with laser powder-bed fusion (PBF-LB/M) can generate complex metal parts with a high degree of design freedom, which are already being used in various industries. However, the PBF-LB/M process faces some limitations in achievable surface quality and feature size. To address these challenges, we have developed a novel hybrid manufacturing approach that combines additive manufacturing via PBF-LB/M with subtractive manufacturing via ultrafast laser machining. By alternating between additive and subtractive processes, it is possible to not only mitigate the limitations of each process but also to introduce new functionality. This synergistic combination enables the creation of parts with superior surface finishes and deep and narrow internal features that are not possible with a single method alone.
{"title":"Bridging additive and subtractive manufacturing","authors":"Daniel Holder, Manuel Henn, Matthias Buser, Christian Hagenlocher, Volkher Onuseit, Thomas Graf","doi":"10.1002/phvs.202400022","DOIUrl":"https://doi.org/10.1002/phvs.202400022","url":null,"abstract":"<p>Additive manufacturing with laser powder-bed fusion (PBF-LB/M) can generate complex metal parts with a high degree of design freedom, which are already being used in various industries. However, the PBF-LB/M process faces some limitations in achievable surface quality and feature size. To address these challenges, we have developed a novel hybrid manufacturing approach that combines additive manufacturing via PBF-LB/M with subtractive manufacturing via ultrafast laser machining. By alternating between additive and subtractive processes, it is possible to not only mitigate the limitations of each process but also to introduce new functionality. This synergistic combination enables the creation of parts with superior surface finishes and deep and narrow internal features that are not possible with a single method alone.</p>","PeriodicalId":101021,"journal":{"name":"PhotonicsViews","volume":"21 3","pages":"50-53"},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/phvs.202400022","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141164827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jochen Speiser, Raoul-Amadeus Lorbeer, Pirmin Schweizer, Benjamin Ewers
Over the last decade, multipass thin-disk amplifiers have allowed astonishing laser properties to be achieved, but one drawback of these systems lies in their size and complexity. We show here an alternative approach with a wedged thin-disk crystal significantly shrinking and simplifying multipass thin-disk amplification.
{"title":"Thin disks with a wedge","authors":"Jochen Speiser, Raoul-Amadeus Lorbeer, Pirmin Schweizer, Benjamin Ewers","doi":"10.1002/phvs.202400016","DOIUrl":"https://doi.org/10.1002/phvs.202400016","url":null,"abstract":"<p>Over the last decade, multipass thin-disk amplifiers have allowed astonishing laser properties to be achieved, but one drawback of these systems lies in their size and complexity. We show here an alternative approach with a wedged thin-disk crystal significantly shrinking and simplifying multipass thin-disk amplification.</p>","PeriodicalId":101021,"journal":{"name":"PhotonicsViews","volume":"21 3","pages":"46-49"},"PeriodicalIF":0.0,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/phvs.202400016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141164819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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