A team of University of Central Florida researchers has overcome a long-standing problem in laser science, and the findings could have applications in surgery, drilling and 3D laser mapping.
Using the principle of supersymmetry, they have developed the first supersymmetric laser array. Their findings were published recently in the journal Science.
Supersymmetry is a conjecture in physics that says every particle of matter, such as an electron, has one or more superpartners that is the same except for a precise difference in their momentum.
"This is the first demonstration of a supersymmetric laser array that is promising to meet the needs for high power integrated laser arrays with a high-quality beam emission," said study co-author Mercedeh Khajavikhan, an associate professor of optics and photonics in UCF's College of Optics and Photonics.
Khajavikhan lead the team that developed the laser array, which is comprised of rows of lasers and is able to produce large output power and high beam quality.
This is a first array that consistently generates high radiance, as previous designs have resulted in degraded beam quality.
Khajavikhan said that earlier work by Demetrios Christodoulides, a Pegasus professor of optics and photonics, Cobb Family Endowed Chair in the college and study co-author, suggested the use of supersymmetry in optics and her team has explored it further in its studies.
"However, it is only recently that my group managed to bring these ideas in actual laser settings, where such notions can be fruitfully used to address real problems in photonics," she said.
The trick in her team's laser arrays is spacing lasers beside each other using calculations that take into account supersymmetry.
She said this development is very important in many areas that a high-power integrated laser is needed.
"We foresee many applications of supersymmetric laser arrays in medicine, military, industry and communications, wherever there is a need for high power integrated laser arrays having a high beam quality," Khajavikhan said.
One exciting application could be in the use of LIDAR, which uses lasers to survey and map 3D terrain and is used in fields such as self-driving cars, archaeology, forestry, atmospheric physics and more.
"LIDAR requires a high-power and high-beam quality laser," Khajavikhan said. "Currently, because of the lack of this type of lasers in integrated form, they use other kinds of lasers. The supersymmetric laser provides an integrated high-power laser solution that also shows high beam quality."
Co-authors of the study include Mohammad P. Hokmabadi, the study's lead author and a postdoctoral associate in the College of Optics and Photonics; Nicholas S. Nye, a graduate research assistant in the college; and Ramy El-Ganainy, an associate professor at Michigan Technological University and a UCF alumni.
Khajavikhan received a doctorate in electrical engineering from the University of Minnesota and master's and bachelor's degrees in electronics from Amirkabir University of Technology in Iran. She joined UCF in 2012.
Zenaida Gonzalez Kotala | EurekAlert!
Explosion on Jupiter-sized star 10 times more powerful than ever seen on our sun
18.04.2019 | University of Warwick
In vivo super-resolution photoacoustic computed tomography by localization of single dyed droplets
18.04.2019 | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences
A stellar flare 10 times more powerful than anything seen on our sun has burst from an ultracool star almost the same size as Jupiter
A localization phenomenon boosts the accuracy of solving quantum many-body problems with quantum computers which are otherwise challenging for conventional computers. This brings such digital quantum simulation within reach on quantum devices available today.
Quantum computers promise to solve certain computational problems exponentially faster than any classical machine. “A particularly promising application is the...
The technology could revolutionize how information travels through data centers and artificial intelligence networks
Engineers at the University of California, Berkeley have built a new photonic switch that can control the direction of light passing through optical fibers...
Physicists observe how electron-hole pairs drift apart at ultrafast speed, but still remain strongly bound.
Modern electronics relies on ultrafast charge motion on ever shorter length scales. Physicists from Regensburg and Gothenburg have now succeeded in resolving a...
Engineers create novel optical devices, including a moth eye-inspired omnidirectional microwave antenna
A team of engineers at Tufts University has developed a series of 3D printed metamaterials with unique microwave or optical properties that go beyond what is...
17.04.2019 | Event News
15.04.2019 | Event News
09.04.2019 | Event News
18.04.2019 | Life Sciences
18.04.2019 | Physics and Astronomy
18.04.2019 | Life Sciences