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Midwavelength Infrared Colloidal Nanowire Laser

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Title
Midwavelength Infrared Colloidal Nanowire Laser
Author(s)
Kim, Gahyeon; Choi, Dongsun; Chae, Soo Yeon; Rajesh Bera; Park, Seongchul; Lee, Junho; Min, Su Hyeon; Choi, Han-Kyu; Kim, Juyeong; Huh, Joonsuk; Choi, Kihang; Lim, Manho; Kim, Hugh, I; Minhaeng Cho; Kwang Seob Jeong
Publication Date
2022-02
Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.13, no.6, pp.1431 - 1437
Publisher
AMER CHEMICAL SOC
Abstract
Realizing bright colloidal infrared emitters in the midwavelength infrared (or mid-IR), which can be used for low-power IR light-emitting diodes (LEDs), sensors, and deep-tissue imaging, has been a challenge for the last few decades. Here, we present colloidal tellurium nanowires with strong emission intensity at room temperature and even lasing at 3.6 mu m (w) under cryotemperature. Furthermore, the second-harmonic field at 1.8 mu m (2w) and the third-harmonic field at 1.2 mu m (3w) are successfully generated thanks to the intrinsic property of the tellurium nanowire. These unique optical features have never been reported for colloidal tellurium nanocrystals. With the colloidal midwavelength infrared (MWIR) Te nanowire laser, we demonstrate its potential in biomedical applications. MWIR lasing has been clearly observed from nanowires embedded in a human neuroblastoma cell, which could further realize deep-tissue imaging and thermotherapy in the near future.
URI
https://pr.ibs.re.kr/handle/8788114/11595
DOI
10.1021/acs.jpclett.1c04154
ISSN
1948-7185
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > 1. Journal Papers (저널논문)
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