Resolved-sideband Raman cooling of an optical phonon in semiconductor materials
The radiation pressure of light has been widely used to cool trapped atoms or the mechanical vibrational modes of optomechanical systems. Recently, by using the electrostrictive forces of light, spontaneous Brillouin cooling and stimulated Brillouin excitation of acoustic modes of the whispering-gal...
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sg-ntu-dr.10356-1404492023-02-28T19:27:10Z Resolved-sideband Raman cooling of an optical phonon in semiconductor materials Zhang, Jun Zhang, Qing Wang, Xingzhi Kwek, Leong Chuan Xiong, Qihua School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences National Institute of Education CNRS-UNS-NUS-NTU International Joint Research Unit Nanoelectronics Center of Excellence Institute of Advanced Studies Science::Physics Raman Cooling Longitudinal Optical Phonon (LOP) The radiation pressure of light has been widely used to cool trapped atoms or the mechanical vibrational modes of optomechanical systems. Recently, by using the electrostrictive forces of light, spontaneous Brillouin cooling and stimulated Brillouin excitation of acoustic modes of the whispering-gallery-type resonator have been demonstrated. The laser cooling of specific lattice vibrations in solids (that is, phonons) proposed by Dykman in the late 1970s, however, still remains sparsely investigated. Here, we demonstrate the first strong spontaneous Raman cooling and heating of a longitudinal optical phonon (LOP) with a 6.23 THz frequency in polar semiconductor zinc telluride nanobelts. We use the exciton to resonate and assist photoelastic Raman scattering from the LOPs caused by a strong exciton-LOP coupling. By detuning the laser pump to a lower (higher) energy-resolved sideband to make a spontaneous scattering photon resonate with an exciton at an anti-Stokes (Stokes) frequency, the dipole oscillation of the LOPs is photoelastically attenuated (enhanced) to a colder (hotter) state. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Accepted version 2020-05-29T04:05:46Z 2020-05-29T04:05:46Z 2016 Journal Article Zhang, J., Zhang, Q., Wang, X., Kwek, L. C., & Xiong, Q. (2016). Resolved-sideband Raman cooling of an optical phonon in semiconductor materials. Nature Photonics, 10(9), 600-605. doi:10.1038/nphoton.2016.122 1749-4885 https://hdl.handle.net/10356/140449 10.1038/nphoton.2016.122 2-s2.0-84976874963 9 10 600 605 en Nature Photonics © 2016 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. This paper was published in Nature Photonics and is made available with permission of Macmillan Publishers Limited, part of Springer Nature. application/pdf |
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Science::Physics Raman Cooling Longitudinal Optical Phonon (LOP) Zhang, Jun Zhang, Qing Wang, Xingzhi Kwek, Leong Chuan Xiong, Qihua Resolved-sideband Raman cooling of an optical phonon in semiconductor materials |
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The radiation pressure of light has been widely used to cool trapped atoms or the mechanical vibrational modes of optomechanical systems. Recently, by using the electrostrictive forces of light, spontaneous Brillouin cooling and stimulated Brillouin excitation of acoustic modes of the whispering-gallery-type resonator have been demonstrated. The laser cooling of specific lattice vibrations in solids (that is, phonons) proposed by Dykman in the late 1970s, however, still remains sparsely investigated. Here, we demonstrate the first strong spontaneous Raman cooling and heating of a longitudinal optical phonon (LOP) with a 6.23 THz frequency in polar semiconductor zinc telluride nanobelts. We use the exciton to resonate and assist photoelastic Raman scattering from the LOPs caused by a strong exciton-LOP coupling. By detuning the laser pump to a lower (higher) energy-resolved sideband to make a spontaneous scattering photon resonate with an exciton at an anti-Stokes (Stokes) frequency, the dipole oscillation of the LOPs is photoelastically attenuated (enhanced) to a colder (hotter) state. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Zhang, Jun Zhang, Qing Wang, Xingzhi Kwek, Leong Chuan Xiong, Qihua |
format |
Article |
author |
Zhang, Jun Zhang, Qing Wang, Xingzhi Kwek, Leong Chuan Xiong, Qihua |
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Zhang, Jun |
title |
Resolved-sideband Raman cooling of an optical phonon in semiconductor materials |
title_short |
Resolved-sideband Raman cooling of an optical phonon in semiconductor materials |
title_full |
Resolved-sideband Raman cooling of an optical phonon in semiconductor materials |
title_fullStr |
Resolved-sideband Raman cooling of an optical phonon in semiconductor materials |
title_full_unstemmed |
Resolved-sideband Raman cooling of an optical phonon in semiconductor materials |
title_sort |
resolved-sideband raman cooling of an optical phonon in semiconductor materials |
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2020 |
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https://hdl.handle.net/10356/140449 |
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1759853298855182336 |