Nanotechnology

Nanotechnology Now – Press Release: Discoveries could lead to terahertz technology for quantum sensing: Properties of metal oxides can activate a wide range of photonic terahertz frequencies

[ad_1]

Home > press > Discoveries could lead to terahertz technology for quantum sensing: Properties of metal oxides can activate a wide range of photonic terahertz frequencies

Rui Xu, a Rice University materials science and nanoengineering student, is the lead author on a study showing strontium titanate has the potential to enable efficient photonic devices at frequencies from 3-19 terahertz.  CREDIT (Photo by Gustavo Raskosky/Rice University)
Rui Xu, a Rice University materials science and nanoengineering student, is the lead author on a study showing strontium titanate has the potential to enable efficient photonic devices at frequencies from 3-19 terahertz. CREDIT (Photo by Gustavo Raskosky/Rice University)

Abstract:
Visible light is only a small part of the electromagnetic spectrum, and the manipulation of light waves at frequencies beyond human vision has made technologies such as cell phones and CT scans possible.

Discoveries could lead to terahertz technology for quantum sensing: Properties of metal oxides could enable a photonic range of terahertz frequencies

Houston, Texas | Posted on July 21, 2023

Rice University researchers have plans to tap into previously unused portions of the spectrum.

“There is an important gap in mid and far infrared light, roughly 5-15 terahertz in frequency and wavelengths ranging from 20-60 micrometers, where there is no good commercial product compared to higher optical frequencies and lower radio frequencies,” said Rui Xu, third year doctoral student at Rice and lead author of the article published in Advanced Materials.

The research was conducted at the Emerging Quantum and Ultrafast Materials Laboratory with co-author Hanyu Zhu, William Marsh Rice Chair and assistant professor of materials science and nanoengineering.

“Optical technology in this frequency region ⎯ is sometimes called the ‘new terahertz gap’ because it is much more difficult to access than other 0.3-30 terahertz ‘gaps’ ⎯ can be very useful for studying and developing quantum materials for quantum electronics closer to room temperature, as well as sensing functional groups in biomolecules for medical diagnosis,” said Zhu.

The challenge the researchers face is identifying the right materials to carry and process the light in the “new terahertz gap”. Such light strongly interacts with the atomic structure of most materials and is quickly absorbed by it. The Zhu group has turned the strong interaction to its advantage with strontium titanate, an oxide of strontium and titanium.

“The atoms coupled with terahertz light so strongly that they formed new particles called phonon-polaritons, which are confined to the surface of the material and are not lost within it,” Xu said.

Unlike other materials which support phonon-polaritons at higher frequencies and usually over a narrow range, strontium titanate acts over the entire 5-15 terahertz gap due to a property called quantum paraelectricity. Its atoms exhibit large quantum fluctuations and vibrate randomly, thus capturing light effectively without being trapped by the captured light themselves, even at zero degrees Kelvin.

“We proved the concept of a phonon-polariton strontium titanate device in the 7-13 terahertz frequency range by designing and manufacturing an ultrafast field concentrator,” said Xu. “The device squeezes light pulses into a volume that is smaller than the wavelength of light and maintains a short duration. In doing so, we achieve a strong transient electric field of nearly one gigavolt per meter.”

The electric field is so strong that it can be used to change the structure of materials to create new electronic properties, or to create new nonlinear optical responses from certain trace amounts of molecules that can be detected by a common optical microscope. Zhu said the design and fabrication methodology developed by his group is applicable to many commercially available materials and can enable photonic devices in the 3-19 terahertz range.

The paper’s other co-authors are Xiaotong Chen, a postdoctoral researcher in materials science and nanoengineering; Elizabeth Blackert and Tong Lin, doctoral students in materials science and nanoengineering; Jiaming Luo, third year doctoral student in applied physics; Alyssa Moon, now at Texas A&M University and previously enrolled at Rice in Nanotechnology Research Experience for Undergraduate Programs; and Khalil JeBailey, a senior in materials science and nanoengineering at Rice.

This research was supported by the National Science Foundation (2005096, 1842494, 1757967) and the Welch Foundation (C-2128).

By Patrick Kurp, science writer for the George R. Brown School of Engineering

####

About Rice University
Located on a 300-acre forested campus in Houston, Rice University is consistently ranked among the top 20 universities in the nation by US News & World Report. Rice has highly respected schools of Architecture, Business, Continuing Studies, Engineering, Humanities, Music, Natural Sciences, and Social Sciences and is home to the Baker Institute for Public Policy. With 4,552 undergraduate and 3,998 graduate students, Rice’s undergraduate student-to-faculty ratio is just under 6 to 1. The college system where she lives builds a tight-knit community and lifelong friendships, just one reason why Rice is ranked No. 1 for most race/class interactions and No. 4 for quality of life by the Princeton Review. Rice was also rated as the best value among private universities by Kiplinger’s Personal Finance.

For more information, please click Here

Contact:
Silvia Cernea Clark
Paddy University

Office: 7133486728

Copyright © Rice University

If you have any comments, please Contact us.

The news release publisher, not 7th Wave, Inc. or Nanotechnology Now, is solely responsible for the accuracy of the content.

Bookmark:
Delicious
Digg
Newsvine
Google
Yahoo
Reddit
Magnoliacom
Roll
Facebook

Peer-reviewed papers:

Advanced Materials

News and information

Current and future computing gets a boost from new research July 21, 2023

New catalyst could dramatically reduce methane pollution from millions of engines: Researchers demonstrate a way to remove the potent greenhouse gas from the exhaust of engines burning natural gas. July 21, 2023

Billions of nanoplastics released when microwaving baby food containers: Exposure to plastic particles kills up to 75% of cultured kidney cells July 21, 2023

Understanding the various industrial applications of materials science: Materials Science in the Field of Various Industrial Applications 21 July 2023

Quantum physics

Unraveling the quantum dance: Experiments reveal the relationship between vibrational dynamics and electronics: The fusion of electronic and nuclear dynamics uncovered in molecules with ultrafast lasers and X-rays July 21, 2023

Electron collider on a chip June 30, 2023

Research breakthrough could be significant for the future of quantum computing: Ireland-based scientist confirms important characteristics of new superconducting material 30 June 2023

Imaging

New single photon raman lidar can monitor oil leaks underwater: System can be used aboard underwater vehicles for many applications June 30, 2023

Research breakthrough could be significant for the future of quantum computing: Ireland-based scientist confirms important characteristics of new superconducting material 30 June 2023

Health overview: Virginia Tech researchers improve bioimaging and sensing with quantum photonics June 30, 2023

Government-Legislation/Regulation/Funding/Policy

Current and future computing gets a boost from new research July 21, 2023

New catalyst could dramatically reduce methane pollution from millions of engines: Researchers demonstrate a way to remove the potent greenhouse gas from the exhaust of engines burning natural gas. July 21, 2023

Non-covalent bond experience: Scientists discover new structures for unique hybrid materials by changing their chemical bonds July 21, 2023

Unraveling the quantum dance: Experiments reveal the relationship between vibrational dynamics and electronics: The fusion of electronic and nuclear dynamics uncovered in molecules with ultrafast lasers and X-rays July 21, 2023

Possible Futures

Two types of ultra-fast mode-locking operation generation of Er-doped fiber lasers based on germanene nanosheets July 21, 2023

Detection of bacteria and viruses with fluorescent nanotubes July 21, 2023

Non-covalent bond experience: Scientists discover new structures for unique hybrid materials by changing their chemical bonds July 21, 2023

Unraveling the quantum dance: Experiments reveal the relationship between vibrational dynamics and electronics: The fusion of electronic and nuclear dynamics uncovered in molecules with ultrafast lasers and X-rays July 21, 2023

Invention

Billions of nanoplastics released when microwaving baby food containers: Exposure to plastic particles kills up to 75% of cultured kidney cells July 21, 2023

Understanding the various industrial applications of materials science: Materials Science in the Field of Various Industrial Applications 21 July 2023

Non-covalent bond experience: Scientists discover new structures for unique hybrid materials by changing their chemical bonds July 21, 2023

Unraveling the quantum dance: Experiments reveal the relationship between vibrational dynamics and electronics: The fusion of electronic and nuclear dynamics uncovered in molecules with ultrafast lasers and X-rays July 21, 2023

Announcement

New catalyst could dramatically reduce methane pollution from millions of engines: Researchers demonstrate a way to remove the potent greenhouse gas from the exhaust of engines burning natural gas. July 21, 2023

Billions of nanoplastics released when microwaving baby food containers: Exposure to plastic particles kills up to 75% of cultured kidney cells July 21, 2023

Understanding the various industrial applications of materials science: Materials Science in the Field of Various Industrial Applications 21 July 2023

Non-covalent bond experience: Scientists discover new structures for unique hybrid materials by changing their chemical bonds July 21, 2023

quantum nanoscience

Unraveling the quantum dance: Experiments reveal the relationship between vibrational dynamics and electronics: The fusion of electronic and nuclear dynamics uncovered in molecules with ultrafast lasers and X-rays July 21, 2023

Electron collider on a chip June 30, 2023

USTC increased the fluorescence brightness of the single silicon carbide spin color center June 9, 2023

Quantum materials: Electron spin measured for the first time June 9, 2023

[ad_2]

Source link

Related Articles

Back to top button