* . *
  • About
  • Advertise
  • Privacy & Policy
  • Contact
Friday, August 1, 2025
Earth-News
  • Home
  • Business
  • Entertainment
    Sens. Blackburn, Warnock introduce CREATE Act to provide tax relief to music creators – Yahoo Home

    Sens. Blackburn and Warnock Launch CREATE Act to Deliver Tax Relief for Music Creators

    That’s (Political) Entertainment: When Theatre Meets Politics

    Future Script: How Generative AI Is Changing Collective Bargaining in the Entertainment Industry – Jackson Lewis

    Future Script: How Generative AI Is Transforming Collective Bargaining in Entertainment

    The SBA’s live-entertainment bailout was supposed to end two years ago. We still don’t know how $1.5 billion was spent. – Yahoo Home

    $1.5 Billion Live-Entertainment Bailout: Two Years Later, Where Did the Money Go?

    Wall Street Bets: Caesars, Golden Entertainment, Churchill Downs, GLPI, Boyd – CDC Gaming

    Top Wall Street Bets: Caesars, Golden Entertainment, Churchill Downs, GLPI, and Boyd Take Center Stage

    Micro wrestling coming to NE Ohio – Cleveland.com

    Get Ready, NE Ohio: Micro Wrestling Is Making Its Exciting Debut!

  • 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
    Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

    How Robotic Technology is Revolutionizing Knee Replacement Surgery

    Cognizant Technology Solutions Corp (CTSH) Q2 2025 Earnings Call Highlights: Strong Revenue … – Yahoo.co

    Cognizant Q2 2025 Earnings: Impressive Revenue Growth and Key Takeaways

    Revving Up The U.S. Technology Engine – Forbes

    Revving Up The U.S. Technology Engine – Forbes

    More than just a hockey player – Rochester Institute of Technology Athletics

    Beyond the Ice: The Inspiring Journey of a Remarkable Athlete from Rochester Institute of Technology

    Smart Logistics in Warehousing – From Legacy Protocols to Green IoT – How Technology Is Reshaping the Sustainable Supply Chain – Logistics Viewpoints –

    Smart Logistics in Warehousing – From Legacy Protocols to Green IoT – How Technology Is Reshaping the Sustainable Supply Chain – Logistics Viewpoints –

    AI’s race in the dark with China – Axios

    The High-Stakes AI Race: Innovation and Competition in the Shadows

    Trending Tags

    • Nintendo Switch
    • CES 2017
    • Playstation 4 Pro
    • Mark Zuckerberg
No Result
View All Result
  • Home
  • Business
  • Entertainment
    Sens. Blackburn, Warnock introduce CREATE Act to provide tax relief to music creators – Yahoo Home

    Sens. Blackburn and Warnock Launch CREATE Act to Deliver Tax Relief for Music Creators

    That’s (Political) Entertainment: When Theatre Meets Politics

    Future Script: How Generative AI Is Changing Collective Bargaining in the Entertainment Industry – Jackson Lewis

    Future Script: How Generative AI Is Transforming Collective Bargaining in Entertainment

    The SBA’s live-entertainment bailout was supposed to end two years ago. We still don’t know how $1.5 billion was spent. – Yahoo Home

    $1.5 Billion Live-Entertainment Bailout: Two Years Later, Where Did the Money Go?

    Wall Street Bets: Caesars, Golden Entertainment, Churchill Downs, GLPI, Boyd – CDC Gaming

    Top Wall Street Bets: Caesars, Golden Entertainment, Churchill Downs, GLPI, and Boyd Take Center Stage

    Micro wrestling coming to NE Ohio – Cleveland.com

    Get Ready, NE Ohio: Micro Wrestling Is Making Its Exciting Debut!

  • 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
    Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

    How Robotic Technology is Revolutionizing Knee Replacement Surgery

    Cognizant Technology Solutions Corp (CTSH) Q2 2025 Earnings Call Highlights: Strong Revenue … – Yahoo.co

    Cognizant Q2 2025 Earnings: Impressive Revenue Growth and Key Takeaways

    Revving Up The U.S. Technology Engine – Forbes

    Revving Up The U.S. Technology Engine – Forbes

    More than just a hockey player – Rochester Institute of Technology Athletics

    Beyond the Ice: The Inspiring Journey of a Remarkable Athlete from Rochester Institute of Technology

    Smart Logistics in Warehousing – From Legacy Protocols to Green IoT – How Technology Is Reshaping the Sustainable Supply Chain – Logistics Viewpoints –

    Smart Logistics in Warehousing – From Legacy Protocols to Green IoT – How Technology Is Reshaping the Sustainable Supply Chain – Logistics Viewpoints –

    AI’s race in the dark with China – Axios

    The High-Stakes AI Race: Innovation and Competition in the Shadows

    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

Nano-Sized Powerhouses: Ultrafast Laser Technology Miniaturized on Tiny Photonic Chips

November 22, 2023
in Science
Nano-Sized Powerhouses: Ultrafast Laser Technology Miniaturized on Tiny Photonic Chips
Share on FacebookShare on Twitter

Laser on Chip Art Concept

Researchers have developed a new method to create compact mode-locked lasers on photonic chips, using lithium niobate for active mode-locking. This technology promises to bring large-scale ultrafast laser experiments to a chip-scale format, with plans to further shorten pulse durations and increase peak powers.

Caltech has innovated a method for creating compact, integrated mode-locked lasers on photonic chips, potentially transforming ultrafast laser applications to smaller scales with enhanced performance.

Lasers have become relatively commonplace in everyday life, but they have many uses outside of providing light shows at raves and scanning barcodes on groceries. Lasers are also of great importance in telecommunications and computing as well as biology, chemistry, and physics research.

The Value of Ultrashort Laser Pulses

In those latter applications, lasers that can emit extremely short pulses—those on the order of one-trillionth of a second (one picosecond) or shorter—are especially useful. Using lasers operating on such small timescales, researchers can study physical and chemical phenomena that occur extremely quickly—for example, the making or breaking of molecular bonds in a chemical reaction or the movement of electrons within materials. These ultrashort pulses are also extensively used for imaging applications because they can have extremely large peak intensities but low average power, so they avoid heating or even burning up samples such as biological tissues.

Advancements in Laser Technology

In a paper appearing in the journal Science, Caltech’s Alireza Marandi, an assistant professor of electrical engineering and applied physics, describes a new method developed by his lab for making this kind of laser, known as a mode-locked laser, on a photonic chip. The lasers are made using nanoscale components (a nanometer is one-billionth of a meter), allowing them to be integrated into light-based circuits similar to the electricity-based integrated circuits found in modern electronics.

Nanophotonic Mode-Locked Laser

A nanophotonic mode-locked laser built on lithium niobate emits a beam of green laser light. Credit: Caltech

“We’re not just interested in making mode-locked lasers more compact,” Marandi says. “We are excited about making a well-performing mode-locked laser on a nanophotonic chip and combining it with other components. That’s when we can build a complete ultrafast photonic system in an integrated circuit. This will bring the wealth of ultrafast science and technology, currently belonging to meter-scale experiments, to millimeter-scale chips.”

Ultrafast Lasers and Nobel Prize Recognition

Ultrafast lasers of this sort are so important to research, that this year’s Nobel Prize in Physics was awarded to a trio of scientists for the development of lasers that produce attosecond pulses (one attosecond is one-quintillionth of a second). Such lasers, however, are currently extremely expensive and bulky, says Marandi—who notes that his research is exploring methods to achieve such timescales on chips that can be orders of magnitude cheaper and smaller, with the aim of developing affordable and deployable ultrafast photonic technologies.

“These attosecond experiments are done almost exclusively with ultrafast mode-locked lasers,” he says. “And some of them can cost as much as $10 million, with a good chunk of that cost being the mode-locked laser. We are really excited to think about how we can replicate those experiments and functionalities in nanophotonics.”

Innovative Nanophotonic Mode-Locked Laser

At the heart of the nanophotonic mode-locked laser developed by Marandi’s lab is lithium niobate, a synthetic salt with unique optical and electrical properties that, in this case, allows the laser pulses to be controlled and shaped through the application of an external radio-frequency electrical signal. This approach is known as active mode-locking with intracavity phase modulation.

“About 50 years ago, researchers used intracavity phase modulation in tabletop experiments to make mode-locked lasers and decided that it was not a great fit compared to other techniques,” says Qiushi Guo, the first author of the paper and a former postdoctoral scholar in Marandi’s lab. “But we found it to be a great fit for our integrated platform.”

“Beyond its compact size, our laser also exhibits a range of intriguing properties. For example, we can precisely tune the repetition frequency of the output pulses in a wide range. We can leverage this to develop chip-scale stabilized frequency comb sources, which are vital for frequency metrology and precision sensing,” adds Guo, who is now an assistant professor at the City University of New York Advanced Science Research Center.

Future Goals and Research Impact

Marandi says he aims to continue improving this technology so it can operate at even shorter timescales and higher peak powers, with a goal of 50 femtoseconds (a femtosecond is one-quadrillionth of a second), which would be a 100-fold improvement over his current device, which generates pulses 4.8 picoseconds in length.

The paper describing the research is titled “Ultrafast mode-locked laser in nanophotonic lithium niobite” and appears in the November 9 issue of Science.

Reference: “Ultrafast mode-locked laser in nanophotonic lithium niobate” by Qiushi Guo, Benjamin K. Gutierrez, Ryoto Sekine, Robert M. Gray, James A. Williams, Luis Ledezma, Luis Costa, Arkadev Roy, Selina Zhou, Mingchen Liu and Alireza Marandi, 9 November 2023, Science.
DOI: 10.1126/science.adj5438

Co-authors are Benjamin K. Gutierrez (MS ’23), graduate student in applied physics; electrical engineering graduate students Ryoto Sekine (MS ’22), Robert M. Gray (MS ’22), James A. Williams, Selina Zhou (BS ’22), and Mingchen Liu; Luis Ledezma (PhD ’23), an external affiliate in electrical engineering; Luis Costa, formerly at Caltech and now with JPL, which Caltech manages for NASA; and Arkadev Roy (MS ’23, PhD ’23), formerly of Caltech and now with UC Berkeley.

Funding for the research was provided by the Army Research Office, the National Science Foundation, and the Air Force Office of Scientific Research.

>>> Read full article>>>
Copyright for syndicated content belongs to the linked Source : SciTechDaily – https://scitechdaily.com/nano-sized-powerhouses-ultrafast-laser-technology-miniaturized-on-tiny-photonic-chips/

Tags: Nano-SizedPowerhousesscience
Previous Post

Unlocking Disease Mysteries: Nano Traps Offer New Insights Into Protein Clumps

Next Post

Dementia Dangers: How Hearing Loss Rewires the Brain

Women’s Voices Are the Only Way Forward for Climate Change Solutions: ‘As Women, We Have to Stand Up and Back Up Women’ – Ms. Magazine

Women’s Voices Are the Only Way Forward for Climate Change Solutions: ‘As Women, We Have to Stand Up and Back Up Women’ – Ms. Magazine

August 1, 2025
“A Danger to the Entire Planet”: Amid Deadly Extreme Weather, Trump’s EPA Rejects Climate Science – Democracy Now!

“A Danger to the Entire Planet”: Amid Deadly Extreme Weather, Trump’s EPA Rejects Climate Science – Democracy Now!

August 1, 2025
Ten Lifestyle Group Announces Total Voting Rights and Share Capital Update – TipRanks

Ten Lifestyle Group Announces Total Voting Rights and Share Capital Update – TipRanks

August 1, 2025
Five different countries take gold medals on a wide-open day at the swim world championships – AP News

Five Countries Triumph in a Thrilling, Unpredictable Day at the Swim World Championships

August 1, 2025
US employers slash hiring as Trump advances a punishing trade agenda – AP News

US Employers Slash Hiring as Trump’s Aggressive Trade Policies Shake the Market

August 1, 2025
Duffer Brothers and Jerry Bruckheimer Join Program for Entertainment and Technology Summit – Variety

Duffer Brothers and Jerry Bruckheimer Join Forces for an Exciting Entertainment and Technology Summit

August 1, 2025
Alabama schools enhance mental health support as students return to the classroom – WBMA

Alabama Schools Ramp Up Mental Health Support as Students Return to Classrooms

August 1, 2025
Platts­burgh town su­per­visor eyed for Dem ticket in N.Y. Assembly special election – Spectrum News

Platts­burgh town su­per­visor eyed for Dem ticket in N.Y. Assembly special election – Spectrum News

August 1, 2025
Emory orthopaedic surgeons use robotic technology to transform knee replacement surgery – Emory News Center

How Robotic Technology is Revolutionizing Knee Replacement Surgery

August 1, 2025
Carlos Correa trade grades: Astros score ‘A’ for stunning deadline deal, Twins get their salary dump – CBS Sports

Carlos Correa Trade Grades: Astros Land an ‘A’ for Blockbuster Deadline Deal, Twins Successfully Shed Salary

August 1, 2025

Categories

Archives

August 2025
MTWTFSS
 123
45678910
11121314151617
18192021222324
25262728293031
« Jul    
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 (749)
  • Economy (774)
  • Entertainment (21,652)
  • General (16,230)
  • Health (9,811)
  • Lifestyle (782)
  • News (22,149)
  • People (775)
  • Politics (783)
  • Science (15,987)
  • Sports (21,270)
  • Technology (15,752)
  • World (757)

Recent News

Women’s Voices Are the Only Way Forward for Climate Change Solutions: ‘As Women, We Have to Stand Up and Back Up Women’ – Ms. Magazine

Women’s Voices Are the Only Way Forward for Climate Change Solutions: ‘As Women, We Have to Stand Up and Back Up Women’ – Ms. Magazine

August 1, 2025
“A Danger to the Entire Planet”: Amid Deadly Extreme Weather, Trump’s EPA Rejects Climate Science – Democracy Now!

“A Danger to the Entire Planet”: Amid Deadly Extreme Weather, Trump’s EPA Rejects Climate Science – Democracy Now!

August 1, 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