Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button

Home > Press > Ultra-sensitive force sensing with a levitating nanoparticle: ICFO scientists have optically levitated nanoparticles in high vacuum conditions and measured the highest Q-factor ever observed in nano- or micromechanical systems

This is a silica nanoparticle trapped by tightly focused laser beams.

Credit: ICFO
This is a silica nanoparticle trapped by tightly focused laser beams.

Credit: ICFO

Abstract:
A recent study led by researchers of the Institute of Photonic Sciences (ICFO) achieved the highest force sensitivity ever observed with a nano-mechanical resonator. The scientific results of this study have been published in Nature Physics.

Ultra-sensitive force sensing with a levitating nanoparticle: ICFO scientists have optically levitated nanoparticles in high vacuum conditions and measured the highest Q-factor ever observed in nano- or micromechanical systems

Barcelona, Spain | Posted on November 26th, 2013

Nano- and micromechanical oscillators with high quality (Q) factors have gained much attention for their potential application in sensing, signal processing and transduction as well as in fundamental research aiming at observing quantum effects in increasingly larger systems. Despite recent advances in the design and fabrication of mechanical resonators, their Q-factor has so far been limited by coupling to the environment through physical contact to a support. To overcome this limitation, the present work proposes to use optically levitated objects in vacuum that do not suffer from clamping losses.

In this recent ICFO study, scientists have optically levitated nanoparticles in high vacuum conditions and measured the highest Q-factor ever observed in nano- or micromechanical systems. The combination of an ultra-high Q-factor together with the tiny mass of the nanoparticles leads to an unprecedented force sensitivity at room temperature. The system is so sensitive that the weak forces arising from collisions between the nanoparticle and the residual air molecules are enough to drive it into the nonlinear regime. For the first time, this study demonstrates that ultra-high Q-factor nano-resonators intrinsically behave nonlinearly. In addition, the researchers show that, when combined with feedback cooling, the levitating nanoparticle can be used as a force-sensor, sufficiently sensitive to detect ultra-weak interactions, such as non-Newtonian gravity-like forces and tiny forces arising from quantum vacuum fluctuations.

Gieseler remarks that "Thermal motion is commonly observed in nano-mechanical systems. However, observing nonlinear features of thermal motion is a true novelty and, thus, challenges our understanding of how these high-Q nano-mechanical systems behave."

The advent of this new class of nano-mechanical oscillators will open new avenues for ultrasensitive force sensing and benefit the experimental investigation of quantum physics.

This discovery has been possible thanks to the collaboration between the Plasmon Nano-optics group led by ICREA Prof. at ICFO Romain Quidant and the Nano-Photonics group led by Prof. Lukas Novotny, from the Photonics Laboratory (ETH Zurich), as well as the support from the Fundació Cellex Barcelona through its Nest program.

Ref: Jan Gieseler, Lukas Novotny & Romain Quidant, Thermal nonlinearities in a nanomechanical oscillator, Nature Physics (2013), doi:10.1038/nphys2798

####

About ICFO-The Institute of Photonic Sciences
ICFO-The Institute of Photonic Sciences was created in 2002 by the government of Catalonia and the Technical University of Catalonia as a center of research excellence devoted to the science and technologies of light with a triple mission: to conduct frontier research, train the next generation of scientists and technologists, and provide knowledge and technology transfer. In recognition of research excellence, ICFO was granted the Severo Ochoa accreditation by the Ministry of Science and Innovation. In addition, ICFO has secured the number one position worldwide among Physics research institutes in the Mapping Excellence study led by the Administrative Headquarters of the Max Planck Society ('Ranking and mapping of universities and research-focused institutions worldwide based on highly-cited papers').

Research at ICFO targets the forefront of science and technology based on light with programs directed at applications in Health, Renewable Energies, Information Technologies, Security and Industrial processes, among others. The center currently hosts 300 professionals including researchers and PhD students, working in 60 laboratories. All research groups and facilities are located in a dedicated 14.000 m2 building situated in the Mediterranean Technology Park in the metropolitan area of Barcelona.

Researchers at ICFO publish in the most prestigious journals and collaborate with a wide range of companies around the world. The Client Liaison Program at ICFO, which includes members of a large number of local and international companies, aims to create synergies between ICFO and the industrial sector. The institute actively promotes the creation of spin-off companies by ICFO researchers. The institute participates in a large number of projects and international networks of excellence. Foundation Cellex finances the NEST program at ICFO which makes possible many ambitious frontier research projects.

For more information, please click here

Contacts:
Alina Hirschmann

34-935-542-246

Copyright © ICFO-The Institute of Photonic Sciences

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

Physics

Novel state of matter: Observation of a quantum spin liquid July 29th, 2016

A new type of quantum bits July 29th, 2016

Entanglement: Chaos - Researchers at UCSB blur the line between classical and quantum physics by connecting chaos and entanglement July 14th, 2016

News and information

Novel state of matter: Observation of a quantum spin liquid July 29th, 2016

A new type of quantum bits July 29th, 2016

Lonely atoms, happily reunited July 29th, 2016

Wireless/telecommunications/RF/Antennas/Microwaves

Scientists move 1 step closer to creating an invisibility cloak July 15th, 2016

A little impurity makes nanolasers shine: ANU media release July 6th, 2016

Superheroes are real: Ultrasensitive nonlinear metamaterials for data transfer June 25th, 2016

Sensors

Ultrasensitive sensor using N-doped graphene July 26th, 2016

Integration of novel materials with silicon chips makes new 'smart' devices possible July 25th, 2016

Electron 'spin control' of levitated nanodiamonds could bring advances in sensors, quantum information processing July 20th, 2016

Easier, faster, cheaper: A full-filling approach to making nanotubes of consistent quality: Approach opens a straightforward route for engineering the properties of single-wall carbon nanotubes July 19th, 2016

Discoveries

Novel state of matter: Observation of a quantum spin liquid July 29th, 2016

A new type of quantum bits July 29th, 2016

Lonely atoms, happily reunited July 29th, 2016

Penn team uses nanoparticles to break up plaque and prevent cavities July 28th, 2016

Announcements

Novel state of matter: Observation of a quantum spin liquid July 29th, 2016

A new type of quantum bits July 29th, 2016

Lonely atoms, happily reunited July 29th, 2016

Pixel-array quantum cascade detector paves the way for portable thermal imaging devices: Research team from TU-Wien Center for Micro- and Nanostructures have developed a new 'cooler' sensing instrument thereby increasing energy-efficiency and enhancing mobility for diagnostic tes July 28th, 2016

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Novel state of matter: Observation of a quantum spin liquid July 29th, 2016

A new type of quantum bits July 29th, 2016

Lonely atoms, happily reunited July 29th, 2016

Dirty to drinkable: Engineers develop novel hybrid nanomaterials to transform water July 28th, 2016

Photonics/Optics/Lasers

Beating the heat a challenge at the nanoscale: Rice University scientists detect thermal boundary that hinders ultracold experiments July 28th, 2016

Attosecond physics: Mapping electromagnetic waveforms July 25th, 2016

RMIT researchers make leap in measuring quantum states July 21st, 2016

The birth of quantum holography: Making holograms of single light particles! July 21st, 2016

Quantum nanoscience

Quantum drag:University of Iowa physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet July 22nd, 2016

A new spin on reality July 15th, 2016

Physicists couple distant nuclear spins using a single electron: For the first time, researchers at the University of Basel have coupled the nuclear spins of distant atoms using just a single electron July 12th, 2016

Quantum technologies to revolutionize 21st century: Nobel Laureates to discuss impacts at 66th Lindau Meeting July 5th, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic