TY - JOUR
T1 - Midwavelength Infrared Colloidal Nanowire Laser
AU - Kim, Gahyeon
AU - Choi, Dongsun
AU - Chae, Soo Yeon
AU - Bera, Rajesh
AU - Park, Seongchul
AU - Lee, Junho
AU - Min, Su Hyeon
AU - Choi, Han Kyu
AU - Kim, Juyeong
AU - Huh, Joonsuk
AU - Choi, Kihang
AU - Lim, Manho
AU - Kim, Hugh I.
AU - Cho, Minhaeng
AU - Jeong, Kwang Seob
N1 - Publisher Copyright:
© 2022 American Chemical Society
PY - 2022/2/17
Y1 - 2022/2/17
N2 - 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 μm (ω) under cryotemperature. Furthermore, the second-harmonic field at 1.8 μm (2ω) and the third-harmonic field at 1.2 μm (3ω) 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.
AB - 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 μm (ω) under cryotemperature. Furthermore, the second-harmonic field at 1.8 μm (2ω) and the third-harmonic field at 1.2 μm (3ω) 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.
UR - http://www.scopus.com/inward/record.url?scp=85124313670&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85124313670&partnerID=8YFLogxK
U2 - 10.1021/acs.jpclett.1c04154
DO - 10.1021/acs.jpclett.1c04154
M3 - Article
C2 - 35119872
AN - SCOPUS:85124313670
SN - 1948-7185
VL - 13
SP - 1431
EP - 1437
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
IS - 6
ER -