Two-Photon Excitation of Silicon-Vacancy Centers in Nanodiamonds for All-Optical Thermometry with a Noise Floor of 6.6 mKmiddotHz-1/2

Zhang, Jiahua1; He, Hongsen1; Zhang, Tongtong1; Wang, Lingzhi1; Gupta, Madhav1; Jing, Jixiang1; Wang, Zhongqiang2; Wang, Qi2; Li, Kwai Hei3; Wong, Kenneth Kin-Yip1,4; Chu, Zhiqin1,5

2023

10.1021/acs.jpcc.2c06966

Journal of Physical Chemistry C   影响因子和分区

1932-7447

1932-7455

In this paper, we introduce ultrasensitive all-optical nanothermometry using high figure-of-merit nanodiamonds with silicon-vacancy (SiV) centers. In contrast to the commonly used single-photon process, we have adopted a two-photon approach to achieve efficient excitation of SiV centers in nanodiamonds. Based on the developed intensity-projected scheme, we have experimentally achieved a noise floor of 6.6 mK center dot Hz-1/2 using nanodiamonds. This serves as a new record of temperature resolution in the relevant field. Particularly, this simplified method allows us to reflect the temperature-induced spectral shift without wavelength scanning via a spectrometer. Furthermore, we demonstrate that the two-photon excitation of SiV centers has been thermally activated, as indicated by an elevated fluorescence intensity accompanied by a temperature increase. Our findings offer an opportunity for harnessing SiV-based nanothermometry in an easy-to-use manner and open the road for the development of practical applications in complicated environments such as living cells.

SCI ; EI

英语

其他

Hong Kong SAR Research Grants Council (RGC) Early Career Scheme[27202919] ; Hong Kong SAR RGC Research Matching Grant Scheme[207300313] ; Hong Kong SAR Innovation and Technology Fund (ITF) through the Platform Projects of the Innovation and Technology Support Program (ITSP)[ITS/293/19FP] ; Hong Kong SAR RGC["HKU 17210522","HKU C7074-21G","HKU 17205321","HKU 17200219","HKU 17209018","CityU T42-103/16-N"] ; Guangdong Basic and Applied Basic Research Foundation["2019B1515120081","2019B1515120091","2020B1515120020"]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000934868200001

AMER CHEMICAL SOC

20230613542852

Floors ; Nanodiamonds ; Particle beams ; Photons ; Silicon compounds

Buildings and Towers:402 ; Gems:482.2.1 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Nanotechnology:761 ; Atomic and Molecular Physics:931.3 ; High Energy Physics:932.1

Web of Science

1.Univ Hong Kong, Elect & Elect Engn, Hong Kong 999077, Peoples R China
2.Peking Univ, Dongguan Inst Optoelect, Shenzhen 523808, Guangdong, Peoples R China
3.Southern Univ Sci & Technol, Sch Microelect, Shenzhen 518055, Peoples R China
4.Adv Biomed Instrumentat Ctr, Shatin, Hong Kong Sci Pk, Hong Kong 999077, Peoples R China
5.Univ Hong Kong, Sch Biomed Sci, Hong Kong 999077, Peoples R China

Zhang, Jiahua,He, Hongsen,Zhang, Tongtong,et al. Two-Photon Excitation of Silicon-Vacancy Centers in Nanodiamonds for All-Optical Thermometry with a Noise Floor of 6.6 mKmiddotHz-1/2[J]. Journal of Physical Chemistry C,2023,127:3013-3019.

Zhang, Jiahua.,He, Hongsen.,Zhang, Tongtong.,Wang, Lingzhi.,Gupta, Madhav.,...&Chu, Zhiqin.(2023).Two-Photon Excitation of Silicon-Vacancy Centers in Nanodiamonds for All-Optical Thermometry with a Noise Floor of 6.6 mKmiddotHz-1/2.Journal of Physical Chemistry C,127,3013-3019.

Zhang, Jiahua,et al."Two-Photon Excitation of Silicon-Vacancy Centers in Nanodiamonds for All-Optical Thermometry with a Noise Floor of 6.6 mKmiddotHz-1/2".Journal of Physical Chemistry C 127(2023):3013-3019.