* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Monday, September 8, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

    Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

    The Secret to What Made ‘CarJack’ Work on As the World Turns – yahoo.com

    The Surprising Secret Behind ‘CarJack’s’ Success on As the World Turns

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

    Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

    ITV Studios Launches New Entertainment Label – Global Bulletin – IMDb

    ITV Studios Unveils Exciting New Entertainment Label

    TS Entertainment bringing Malibu Jack’s to former Owensboro mall – Lane Report

    TS Entertainment Launches Malibu Jack’s at Former Owensboro Mall Location

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    AI will reshape internet, create jobs in West Virginia says High Technology Foundation’s Estep – WV News

    How AI Is Set to Transform the Internet and Boost Job Growth in West Virginia

    Industry partner provides Ferris State Plastics Engineering Technology students with state-of-the-art equipment to gain in-demand skills – Ferris State University

    Industry Partner Equips Ferris State Plastics Engineering Students with Cutting-Edge Technology to Boost In-Demand Skills

    Health Technology Ecosystem – Centers for Medicare & Medicaid Services | CMS (.gov)

    Discover the Future of Health Technology: Innovations Revolutionizing Patient Care

    Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

    Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

    Gene Associated With Deadly Heart Disease in Golden Retrievers Identified – Technology Networks

    Breakthrough Discovery Uncovers Gene Behind Deadly Heart Disease in Golden Retrievers

    Monkey Island LNG Picks ConocoPhillips’ Liquefaction Technology – Hart Energy

    Monkey Island LNG Selects ConocoPhillips’ Advanced Liquefaction Technology for Next-Gen Energy Solutions

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

    Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

    The Secret to What Made ‘CarJack’ Work on As the World Turns – yahoo.com

    The Surprising Secret Behind ‘CarJack’s’ Success on As the World Turns

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Victor Garber on his viral “And Just Like That” toilet scene: ‘I was delighted to be doing something ridiculous’ (exclusive) – yahoo.com

    Pendulum Announce Homecoming 2026 Australian Tour – yahoo.com

    Pendulum Announces Thrilling Homecoming Tour Across Australia in 2026

    ITV Studios Launches New Entertainment Label – Global Bulletin – IMDb

    ITV Studios Unveils Exciting New Entertainment Label

    TS Entertainment bringing Malibu Jack’s to former Owensboro mall – Lane Report

    TS Entertainment Launches Malibu Jack’s at Former Owensboro Mall Location

  • General
  • Health
  • News

    Cracking the Code: Why China’s Economic Challenges Aren’t Shaking Markets, Unlike America’s” – Bloomberg

    Trump’s Narrow Window to Spread the Truth About Harris

    Trump’s Narrow Window to Spread the Truth About Harris

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    Israel-Gaza war live updates: Hamas leader Ismail Haniyeh assassinated in Iran, group says

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    PAP Boss to Niger Delta Youths, Stay Away from the Protest

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Court Restricts Protests In Lagos To Freedom, Peace Park

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Fans React to Jazz Jennings’ Inspiring Weight Loss Journey

    Trending Tags

    • Trump Inauguration
    • United Stated
    • White House
    • Market Stories
    • Election Results
  • Science
  • Sports
  • Technology
    AI will reshape internet, create jobs in West Virginia says High Technology Foundation’s Estep – WV News

    How AI Is Set to Transform the Internet and Boost Job Growth in West Virginia

    Industry partner provides Ferris State Plastics Engineering Technology students with state-of-the-art equipment to gain in-demand skills – Ferris State University

    Industry Partner Equips Ferris State Plastics Engineering Students with Cutting-Edge Technology to Boost In-Demand Skills

    Health Technology Ecosystem – Centers for Medicare & Medicaid Services | CMS (.gov)

    Discover the Future of Health Technology: Innovations Revolutionizing Patient Care

    Coherent Joins LLNL’s STARFIRE Diode Technology Working Group to Advance Inertial Fusion Energy – GlobeNewswire

    Coherent Partners with LLNL’s STARFIRE Team to Drive Breakthroughs in Inertial Fusion Energy

    Gene Associated With Deadly Heart Disease in Golden Retrievers Identified – Technology Networks

    Breakthrough Discovery Uncovers Gene Behind Deadly Heart Disease in Golden Retrievers

    Monkey Island LNG Picks ConocoPhillips’ Liquefaction Technology – Hart Energy

    Monkey Island LNG Selects ConocoPhillips’ Advanced Liquefaction Technology for Next-Gen Energy Solutions

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
Earth-News
No Result
View All Result
Home Science

UV Photonic Optical Resonator Chips Pave Way for Miniature Communications and Quantum Computing Devices

September 28, 2023
in Science
UV Photonic Optical Resonator Chips Pave Way for Miniature Communications and Quantum Computing Devices
Share on FacebookShare on Twitter

Optical Resonator Chip Concept

Researchers have developed chip-based photonic resonators with minimal UV light loss, paving the way for advanced UV photonic integrated circuits. These resonators, made from alumina thin films, offer potential in applications like spectroscopic sensing and underwater communication.

Advance lays the groundwork for miniature devices for spectroscopy, communications, and quantum computing.

Researchers have created chip-based photonic resonators that operate in the ultraviolet (UV) and visible regions of the spectrum and exhibit a record low UV light loss. The new resonators lay the groundwork for increasing the size, complexity, and fidelity of UV photonic integrated circuit (PIC) design, which could enable new miniature chip-based devices for applications such as spectroscopic sensing, underwater communication, and quantum information processing.

“Compared to the better-established fields like telecom photonics and visible photonics, UV photonics is less explored even though UV wavelengths are needed to access certain atomic transitions in atom/ion-based quantum computing and to excite certain fluorescent molecules for biochemical sensing,” said research team member Chengxing He from Yale University. “Our work sets a good basis toward building photonic circuits that operate at UV wavelengths.”

Technical Advancements in UV PICs

In the Optica Publishing Group journal Optics Express, the researchers describe the alumina-based optical microresonators and how they achieved an unprecedented low loss at UV wavelengths by combining the right material with optimized design and fabrication.

Chip-Based Ring Resonator

Researchers created a chip-based ring resonator that operates in the ultraviolet and visible regions of the spectrum and exhibits a record low UV light loss. The resonator (small circle in the middle) is shown with blue light. Credit: Chengxing He, Yale University

“Our work demonstrates that UV PICs have reached a critical point where light loss for waveguides is no longer significantly worse than their visible counterparts,” said Hong Tang, leader of the research team. “This means that all the interesting PIC structures developed for visible and telecom wavelengths, such as frequency combs and injection locking, can be applied to UV wavelengths as well.”

Decreasing Light Loss

The microresonators were made from high-quality alumina thin films that co-authors Carlo Waldfried and Jun-Fei Zheng from Entegris Inc. prepared using a highly scalable atomic layer deposition (ALD) process. Alumina’s large bandgap of ~8eV makes it transparent to UV photons, which have a much lower (~4eV) energy than the bandgap. Thus, UV wavelengths are not absorbed by this material.

“The previous record was accomplished with aluminum nitride, which has a bandgap of ~6eV,” He said. “Compared to single crystal aluminum nitride, amorphous ALD alumina has fewer defects and is less challenging to fabricate, which helped us to achieve lower loss.”

To create the microresonators, researchers etched the alumina to create what is commonly known as a rib waveguide, in which a slab with a strip on top creates the light-confining structure. As the rib becomes deeper, the confinement becomes stronger but so does the scattering loss. They used simulation to find just the right etch depth to achieve the light confinement needed while minimizing the scattering loss.

Making Ring Resonators

The researchers applied what they learned from waveguides to create ring resonators with a 400-micron radius. They found that the radiation loss can be suppressed to less than 0.06 dB/cm at 488.5 nm and less than 0.001 dB/cm at 390 nm when the etch depth was more than 80 nm in a 400-nm thick alumina film.

After fabricating ring resonators based on these calculations, the researchers determined their Q factors by measuring the width of resonance peaks while scanning the light frequency injected into the resonator. They found a record-high quality (Q) factor of 1.5 × 106 at 390 nm (in the UV portion of the spectrum) and a Q factor of 1.9 × 106 at 488.5 nm (a wavelength for visible blue light). Higher Q-factors indicate less light loss.

“Compared to PICs in visible or telecom wavelengths, UV PICs may find an edge in communications due to the larger bandwidth or in conditions where other wavelengths get absorbed, such as underwater,” said He. “Also, the fact that the atomic layer deposition process used to create the alumina is CMOS compatible paves the way for CMOS integration with amorphous alumina-based photonics.”

Future Prospects

The researchers are now working to develop alumina-based ring resonators that can be tuned to work with different wavelengths. This could be used to achieve precise wavelength control or to create modulators by using two resonators that interfere with each other. They also want to develop a PIC-integrated UV light source to form an entire PIC-based UV system.

Reference: “Ultra-high Q alumina optical microresonators in the UV and blue bands” by Chengxing He, Yubo Wang, Carlo Waldfried, Guangcanlan Yang, Jun-Fei Zheng, Shu Hu and Hong X. Tang, 26 September 2023, Optics Express.
DOI: 10.1364/OE.492510

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/uv-photonic-optical-resonator-chips-pave-way-for-miniature-communications-and-quantum-computing-devices/

Tags: OpticalPhotonicscience
Previous Post

Países de las Américas discuten avances en el acceso a la salud sexual y reproductiva

Next Post

Fish Reveal Caffeine and Other Common Drugs May Alter Human Facial Development

Invasive flathead catfish now top predators in Susquehanna River in Pennsylvania – Phys.org

Invasive Flathead Catfish Rise to Top Predator Status in Pennsylvania’s Susquehanna River

September 8, 2025
Column | Is whole milk better than low-fat? Here’s what the science says. – The Washington Post

Column | Is whole milk better than low-fat? Here’s what the science says. – The Washington Post

September 8, 2025
Ripple will launch their Fall 2025 Watershed Science Field Season following DayOne – Montana Tech

Ripple Launches Exciting Fall 2025 Watershed Science Field Season

September 8, 2025
Cancer risk according to lifestyle risk score trajectories: a population-based cohort study – Nature

Cancer risk according to lifestyle risk score trajectories: a population-based cohort study – Nature

September 8, 2025
AI will reshape internet, create jobs in West Virginia says High Technology Foundation’s Estep – WV News

How AI Is Set to Transform the Internet and Boost Job Growth in West Virginia

September 8, 2025
University of Missouri changes student ticket claim process to lottery – KOMU 8

University of Missouri Launches Exciting New Lottery System for Student Ticket Claims

September 8, 2025
Poland vs Finland: UEFA World Cup Qualifiers stats & head-to-head – BBC

Poland vs Finland: Key Stats and Head-to-Head Showdown in UEFA World Cup Qualifiers

September 8, 2025
Putin Ally Issues Dire Warning About Russian Economy – Newsweek

Putin Ally Issues Stark Warning About Russia’s Economic Future

September 8, 2025
Monumental Sports & Entertainment Sets Corporate Direction at Nasdaq – PR Newswire

Monumental Sports & Entertainment Reveals Bold New Corporate Vision at Nasdaq

September 8, 2025
Trump’s new law will limit payments to hospitals that treat low-income patients – Stateline

Trump’s New Law Targets Major Cuts to Payments for Hospitals Serving Low-Income Patients

September 8, 2025

Categories

Archives

September 2025
MTWTFSS
1234567
891011121314
15161718192021
22232425262728
2930 
« Aug    
Earth-News.info

The Earth News is an independent English-language daily published Website from all around the World News

Browse by Category

  • Business (20,132)
  • Ecology (813)
  • Economy (830)
  • Entertainment (21,708)
  • General (16,921)
  • Health (9,872)
  • Lifestyle (844)
  • News (22,149)
  • People (833)
  • Politics (837)
  • Science (16,040)
  • Sports (21,330)
  • Technology (15,811)
  • World (812)

Recent News

Invasive flathead catfish now top predators in Susquehanna River in Pennsylvania – Phys.org

Invasive Flathead Catfish Rise to Top Predator Status in Pennsylvania’s Susquehanna River

September 8, 2025
Column | Is whole milk better than low-fat? Here’s what the science says. – The Washington Post

Column | Is whole milk better than low-fat? Here’s what the science says. – The Washington Post

September 8, 2025
  • About
  • Advertise
  • Privacy & Policy
  • Contact

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

No Result
View All Result

© 2023 earth-news.info

Go to mobile version