Hao Xu

Hao Xu

Tsinghua University, Postdoc
he/him/his

About me

Hi! This is Hao Xu, I am a Shuimu Postdoctoral Fellow in the Nano-Optoelectronics Lab at Tsinghua University. Prior to here, I received my Ph.D. majoring in micro and nanoelectronics in Jan 2024 at the Institute of Electronics, Microelectronics and Nanotechnology (IEMN), CNRS, France. I love math, physics, neuroscience, musical instruments, outdoor activities and dogs.

My research goal, narrowing the gap of conventional and future thermometry, formerly centers on two main areas:

Nanofabrication for MEMS/NEMS. High-Q MEMS devices present their promising roles played by potential applications, such as force or mass sensors and quantum engineering. In cleanroom, my fabrication method mainly focuses on using EB lithography and dry etching processes to fabricate high-Q devices, following with sample check and characterization (at room temperature).

Theory modeling and numerical simulating. With cavity-enhanced sensing, the radiation pressure from light(microwave) circulating in one cavity enables optomechanical coupling between optical(microwave) mode and mechanical mode, then allowing for sideband manipulating the mechanical mode. My aim is to analyse a mode coupling nanoelectromechanical system while probe/pump multifrequency operating. This double-tone scheme offers a new opportunity for phonon based coupling optomechanics.

I have another interest in incorporating neuracomputation based on synapses, neuronal devices and their networks into future brain science.

Previously, I have been fortunate having research training in Prof Bilu Liu’s LDMD group at Tsinghua TBSI and working on micron and nanophotonic devices.

Research keywords - Nanofabrication, MEMS and NEMS, Optomechanics, Nanophotonics

Feel free to reach me by emails: hao(dot)xu(dot)etu at univ-lille(dot)fr!

News and activities

  • 08/19/2024 I was a remote participant in the Workshop on Quantum Information and Physics held in the Institute for Advanced Study (IAS) at Princeton. The knowledge on entanglement (many-body) physics was deepened and widened.
  • 07/04/2024 I was participating in a ZOOM talk given by Isabelle Staude at the Max Planck Institute for the Science of Light with the topic of “Tailoring light fields with active semiconductor metasurfaces”.
  • 01/12/2024 I’m giving an invite talk at Xi’an Jiaotiong University with the talk title “Fabrication of silicon nitride membrane nanoelectromechanical resonator”. Thank Feng Li, for inviting me.
  • 12/10/2023 I’m attending an online global young scholars’ forum at the Chinese University of Hong Kong Shenzhen. I learn from the worldwide scholars and feel free talk with them.
  • 11/29/2023 I have passed my thesis defense with the title “Analysis of device properties of silicon nitride membrane nanoelectromechanical resonators for future optomechanical thermometry applications”, and have been Dr. Hao Dr. Xu!
  • 06/06/2023 I’m, with Xin and Didier, contributing to our research progress entitled “Scanning microwave microscopy for investigations of mechanical vibrations and mode coupling” in Frontiers of Nanomechanical Systems (FNS) workshop in the Netherlands.
  • 01/30/2023 I’m participating in the event CNRS-IEMN’s 30th anniversary, taking tasty french red wine and cheese and talking with the colleagues. Cheers! IEMN!
  • 12/05/2022 I’m online participating in a virtual LIMMS-IEMN workshop on NEMS/MEMS. I learn from the colleagues from LIMMS UTokyo and IEMN-CNRS.
  • 10/25/2022 I’m attending a virtual Nature conference on Technologies for Neuroengineering. I learn from the widespread colleagues in the field of Neuroengineering around the world.
  • 10/06/2022 I’m attending a GDR MecaQ Nanomechanics and Optomechanics seminar with the Poster title “Scanning microwave microscopy for detecting mechanical vibrations of silicon nitride membranes” in Bordeaux, France. I spend a very nice time with the colleagues all over the Europe. Thank my advisor, Xin Zhou and Didier Theron giving me this chance.
  • 08/11/2022 Our manuscript “Magnetically tunable and stable deep-ultraviolet birefringent optics using two-dimensional hexagonal boron nitride” is published online in Nature Nanotechnology as a Research article! Nature Nanotech, 17, 1091-1096(2022). Thank my advisor Bilu Liu, Baofu Ding and all coauthors for supporting and discussing each step! Thank all LDMD group members for helps!
  • 04/16/2022 I’m receiving summer school invites from VU Amsterdam and EPFL-ETHZ. It is my great pleasure to have these top universities attention.
  • 02/01/2022 I’m attending a virtual talk by Olivier Arcizet from Neel institute CNRS on the topic of “nanowire dynamics in a 2D force field”.
  • very early ago