Chunnong Zhao

Associate Professor, PhD W.Aust.

  • The University of Western Australia (M013), 35 Stirling Highway,

    6009 Perth

    Australia

Calculated based on number of publications stored in Pure and citations from PlumX

Personal profile

Research

I have been working on experimental gravitational wave research and precision measurements since my PhD started in 1995. My research impact is on studying and mitigating high optical power effects in laser interferometer gravitational wave detectors. One of the effects is the interaction between optical field and the test mass mirror acoustic mode induced instability, or three-mode parametric instability. In 2005, I led a team who accomplished a detailed modelling task to determine whether this triple-resonance phenomenon could be a problem for the Advanced LIGO laser interferometer gravitational wave detectors then being designed. We showed that the phenomenon would be a serious risk to Advanced LIGO if not controlled, because it would prevent the laser power levels from being raised high enough to achieve high sensitivity. We also proposed an effective control scheme by thermally tuning the mirror radius of curvature. At the beginning of Advanced LIGO commissioning, the parametric instability appeared as we predicted. Of greatest importance was the fact that the instability was controlled by thermal tuning.

In addition to predicting and solving the instability problems, I and colleagues have turned the phenomenon of three-mode opto-acoustic interaction into potentially useful applications. We showed that especially engineered small scale devices called Opto-Acoustic Parametric Ampliers can be created. Powered by laser light, the devices are predicted to enable milligram-scale mechanical resonators to be cooled to the quantum-ground state, allowing the creation of a new class of super-sensitive light-powered instruments able to measure radio waves, forces, masses and ultrasound with unprecedented precision. Using similar opto-acoustic interactions, we have designed and demonstrated optomechanical filters with 1000-times higher resolving power than can be achieved using optics alone. The latest invention to have come out of this research is opto-mechanical negative dispersion technology. This enables the creation of entirely novel devices that are able to
resonantly amplify a broad band of frequencies simultaneously by causing different frequencies of light to have different effective velocities. We proved theoretically that this optomechanical device can be inserted into Advanced LIGO type detectors to improve the high frequency sensitivity, which will help to explore the binary neutron star merger remnants at kHz frequency band and to constrain the equation of state of dense matter.

Expertise related to UN Sustainable Development Goals

In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):

  • SDG 7 - Affordable and Clean Energy

Research expertise keywords

  • Gravitational waves
  • Laser and Optics
  • Optomechanics

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  • 1 Similar Profiles

Collaborations and top research areas from the last five years

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  • Design of a tabletop interferometer with quantum amplification

    Smetana, J., Dmitriev, A., Zhao, C., Miao, H. & Martynov, D., Apr 2023, In: Physical Review A. 107, 4, 043701.

    Research output: Contribution to journalArticlepeer-review

    Open Access
  • Open Data from the Third Observing Run of LIGO, Virgo, KAGRA, and GEO

    The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration), Abbott, R., Abe, H., Acernese, F., Ackley, K., Adhicary, S., Adhikari, N., Adhikari, R. X., Adkins, V. K., Adya, V. B., Affeldt, C., Agarwal, D., Agathos, M., Aguiar, O. D., Aiello, L., Ain, A., Ajith, P., Akutsu, T., Albanesi, S., Alfaidi, R. A., & 233 othersAl-Jodah, A., Alléné, C., Allocca, A., Almualla, M., Altin, P. A., Amato, A., Amez-Droz, L., Amorosi, A., Anand, S., Ananyeva, A., Andersen, R., Anderson, S. B., Anderson, W. G., Andia, M., Ando, M., Andrade, T., Andres, N., Andrés-Carcasona, M., Andrić, T., Ansoldi, S., Antelis, J. M., Antier, S., Aoumi, M., Apostolatos, T., Appavuravther, E. Z., Appert, S., Apple, S. K., Arai, K., Araya, A., Araya, M. C., Areeda, J. S., Arène, M., Aritomi, N., Arnaud, N., Arogeti, M., Aronson, S. M., Arun, K. G., Asada, H., Ashton, G., Aso, Y., Assiduo, M., Assis de Souza Melo, S., Aston, S. M., Astone, P., Aubin, F., AultONeal, K., Babak, S., Badalyan, A., Badaracco, F., Badger, C., Bae, S., Bagnasco, S., Bai, Y., Baier, J. G., Baiotti, L., Baird, J., Bajpai, R., Baka, T., Ball, M., Ballardin, G., Ballmer, S. W., Baltus, G., Banagiri, S., Banerjee, B., Bankar, D., Baral, P., Barayoga, J. C., Barber, J., Barish, B. C., Barker, D., Barneo, P., Barone, F., Barr, B., Barsotti, L., Barsuglia, M., Barta, D., Barthelmy, S. D., Barton, M. A., Bartos, I., Basak, S., Basalaev, A., Bassiri, R., Basti, A., Bawaj, M., Bayley, J. C., Baylor, A. C., Bazzan, M., Bécsy, B., Bedakihale, V. M., Beirnaert, F., Bejger, M., Bell, A. S., Benedetto, V., Beniwal, D., Benoit, W., Bentley, J. D., Ben Yaala, M., Bera, S., Berbel, M., Bergamin, F., Berger, B. K., Bernuzzi, S., Beroiz, M., Berry, C. P. L., Bersanetti, D., Bertolini, A., Betzwieser, J., Beveridge, D., Bevins, N., Bhandare, R., Bhandari, A. V., Bhardwaj, U., Bhatt, R., Bhattacharjee, D., Bhaumik, S., Bianchi, A., Bilenko, I. A., Bilicki, M., Billingsley, G., Bini, S., Birnholtz, O., Biscans, S., Bischi, M., Biscoveanu, S., Bisht, A., Biswas, B., Bitossi, M., Bizouard, M. A., Blackburn, J. K., Blair, C. D., Blair, D. G., Blair, R. M., Bobba, F., Bode, N., Boër, M., Bogaert, G., Boileau, G., Boldrini, M., Bolingbroke, G. N., Bonavena, L. D., Bondarescu, R., Bondu, F., Bonilla, E., Bonilla, G. S., Bonnand, R., Booker, P., Bork, R., Boschi, V., Bose, N., Bose, S., Bossilkov, V., Boudart, V., Bouffanais, Y., Bozzi, A., Bradaschia, C., Brady, P. R., Braglia, M., Branch, A., Branchesi, M., Brau, J. E., Breschi, M., Briant, T., Brillet, A., Brinkmann, M., Brockill, P., Brooks, A. F., Brooks, J., Brown, D. D., Brunett, S., Bruno, G., Bruntz, R., Bryant, J., Bucci, F., Buchanan, J., Bulashenko, O., Bulik, T., Bulten, H. J., Buonanno, A., Burtnyk, K., Buscicchio, R., Buskulic, D., Buy, C., Byer, R. L., Cabourn Davies, G. S., Cabras, G., Cabrita, R., Cadonati, L., Caesar, S., Cagnoli, G., Cahillane, C., Calderón Bustillo, J., Callaghan, J. D., Callister, T. A., Calloni, E., Camp, J. B., Canepa, M., Caneva Santoro, G., Cannavacciuolo, M., Cannon, K. C., Cao, H., Cao, Z., Capistran, L. A., Capocasa, E., Capote, E., Carapella, G., Carbognani, F., Carlassara, M., Chatterjee, C., Chen, X., Choudhary, S., Coward, D. M., Danilishin, S., Degallaix, J., Diamond, P. Z., Gould, D. W., Howell, E. J., JaberianHamedan, V., Liu, J., Jones, A. W., Ju, L., Kaur, T., Kovalam, M., Mcleod, A., Neil, B. F., Page, M. A., Panther, F. H., Satari, H., Slaven-Blair, T. J., van Heijningen, J. V., Veitch, P. J., Wen, L., Zhu, X. J. & Zhao, C., 1 Aug 2023, In: Astrophysical Journal, Supplement Series. 267, 2, 29.

    Research output: Contribution to journalArticlepeer-review

    Open Access
    54 Citations (Scopus)
  • Optical spring effect enhanced by optical parametric amplifier

    Zhang, J., Sun, H., Guo, H., Blair, C., Bossilkov, V., Page, M., Chen, X., Gao, J., Ju, L. & Zhao, C., 26 Jun 2023, In: Applied Physics Letters. 122, 26, 261106.

    Research output: Contribution to journalArticlepeer-review

    Open Access
    1 Citation (Scopus)
  • Precision mapping of a silicon test mass birefringence

    Jaberian Hamedan, V., Adam, A., Blair, C., Ju, L. & Zhao, C., 6 Feb 2023, In: Applied Physics Letters. 122, 6, 064101.

    Research output: Contribution to journalArticlepeer-review

    Open Access
    2 Citations (Scopus)
  • Search for Gravitational Waves Associated with Fast Radio Bursts Detected by CHIME/FRB during the LIGO-Virgo Observing Run O3a

    LIGO Scientific Collaboration, The Virgo Collaboration, the KAGRA Collaboration, The CHIME/FRB Collaboration, Abbott, R., Abbott, T. D., Acernese, F., Ackley, K., Adams, C., Adhikari, N., Adhikari, R. X., Adya, V. B., Affeldt, C., Agarwal, D., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O. D., Aiello, L., Ain, A., & 234 othersAjith, P., Akutsu, T., Albanesi, S., Allocca, A., Altin, P. A., Amato, A., Anand, C., Anand, S., Ananyeva, A., Anderson, S. B., Anderson, W. G., Ando, M., Andrade, T., Andres, N., Andrić, T., Angelova, S. V., Ansoldi, S., Antelis, J. M., Antier, S., Appert, S., Arai, K., Arai, K., Arai, Y., Araki, S., Araya, A., Araya, M. C., Areeda, J. S., Arène, M., Aritomi, N., Arnaud, N., Aronson, S. M., Arun, K. G., Asada, H., Asali, Y., Ashton, G., Aso, Y., Assiduo, M., Aston, S. M., Astone, P., Aubin, F., Austin, C., Babak, S., Badaracco, F., Bader, M. K. M., Badger, C., Bae, S., Bae, Y., Baer, A. M., Bagnasco, S., Bai, Y., Baiotti, L., Baird, J., Bajpai, R., Ball, M., Ballardin, G., Ballmer, S. W., Balsamo, A., Baltus, G., Banagiri, S., Bankar, D., Barayoga, J. C., Barbieri, C., Barish, B. C., Barker, D., Barneo, P., Barone, F., Barr, B., Barsotti, L., Barsuglia, M., Barta, D., Bartlett, J., Barton, M. A., Bartos, I., Bassiri, R., Basti, A., Bawaj, M., Bayley, J. C., Baylor, A. C., Bazzan, M., Bécsy, B., Bedakihale, V. M., Bejger, M., Belahcene, I., Benedetto, V., Beniwal, D., Bennett, T. F., Bentley, J. D., BenYaala, M., Bergamin, F., Berger, B. K., Bernuzzi, S., Berry, C. P. L., Bersanetti, D., Bertolini, A., Betzwieser, J., Beveridge, D., Bhandare, R., Bhardwaj, U., Bhattacharjee, D., Bhaumik, S., Bilenko, I. A., Billingsley, G., Bini, S., Birney, R., Birnholtz, O., Biscans, S., Bischi, M., Biscoveanu, S., Bisht, A., Biswas, B., Bitossi, M., Bizouard, M. A., Blackburn, J. K., Blair, C. D., Blair, D. G., Blair, R. M., Bobba, F., Bode, N., Boer, M., Bogaert, G., Boldrini, M., Bonavena, L. D., Bondu, F., Bonilla, E., Bonnand, R., Booker, P., Boom, B. A., Bork, R., Boschi, V., Bose, N., Bose, S., Bossilkov, V., Boudart, V., Bouffanais, Y., Boumerdassi, A., Bozzi, A., Bradaschia, C., Brady, P. R., Bramley, A., Branch, A., Branchesi, M., Brau, J. E., Breschi, M., Briant, T., Briggs, J. H., Brillet, A., Brinkmann, M., Brockill, P., Brooks, A. F., Brooks, J., Brown, D. D., Brunett, S., Bruno, G., Bruntz, R., Bryant, J., Buchanan, J., Bulik, T., Bulten, H. J., Buonanno, A., Buscicchio, R., Buskulic, D., Buy, C., Byer, R. L., Cadonati, L., Cagnoli, G., Cahillane, C., Bustillo, J. C., Callaghan, J. D., Callister, T. A., Calloni, E., Cameron, J., Camp, J. B., Canepa, M., Canevarolo, S., Cannavacciuolo, M., Cannon, K. C., Cao, H., Cao, Z., Capocasa, E., Capote, E., Carapella, G., Carbognani, F., Carlin, J. B., Carney, M. F., Carpinelli, M., Carrillo, G., Carullo, G., Carver, T. L., Diaz, J. C., Casentini, C., Castaldi, G., Caudill, S., Cavaglià, M., Cavalier, F., Cavalieri, R., Ceasar, M., Cella, G., Cerdá-Durán, P., Cesarini, E., Chaibi, W., Chakravarti, K., Subrahmanya, S. C., Champion, E., Chan, C. H., Chan, C., Chatterjee, C., Chen, X., Chen, Y. B., Choudhary, R. K., Choudhary, S., Chu, Q., Coward, D. M., Danilishin, S., Degallaix, J., Gould, D. W., Howell, E. J., JaberianHamedan, V., Jones, A. W., Ju, L., Kaur, T., Kovalam, M., Liu, J., McCann, J. J., Neil, B. F., Page, M. A., Panther, F. H., Satari, H., Slaven-Blair, T. J., Sun, H., van Heijningen, J. V., Veitch, P. J., Wen, L., Zhao, C. & Zhu, X. J., 1 Oct 2023, In: Astrophysical Journal. 955, 2, 155.

    Research output: Contribution to journalArticlepeer-review

    Open Access
    4 Citations (Scopus)