TY - JOUR
T1 - Recent Progress in Nanolaser Technology
AU - Jeong, Kwang Yong
AU - Hwang, Min Soo
AU - Kim, Jungkil
AU - Park, Jin Sung
AU - Lee, Jung Min
AU - Park, Hong Gyu
N1 - Funding Information:
K.‐Y.J., M.‐S.H., J.K., and J.‐S.P. contributed equally to this work. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (nos. 2018R1A3A3000666 and 2020R1A4A2002828) and the Institute for Information & Communications Technology Promotion (IITP) grant (no. 2017‐0‐00575). K.‐Y.J. acknowledges support from the NRF grant (2018R1D1A1B07043390).
Publisher Copyright:
© 2020 Wiley-VCH GmbH
PY - 2020/12/22
Y1 - 2020/12/22
N2 - Nanolasers are key elements in the implementation of optical integrated circuits owing to their low lasing thresholds, high energy efficiencies, and high modulation speeds. With the development of semiconductor wafer growth and nanofabrication techniques, various types of wavelength-scale and subwavelength-scale nanolasers have been proposed. For example, photonic crystal lasers and plasmonic lasers based on the feedback mechanisms of the photonic bandgap and surface plasmon polaritons, respectively, have been successfully demonstrated. More recently, nanolasers employing new mechanisms of light confinement, including parity–time symmetry lasers, photonic topological insulator lasers, and bound states in the continuum lasers, have been developed. Here, the operational mechanisms, optical characterizations, and practical applications of these nanolasers based on recent research results are outlined. Their scientific and engineering challenges are also discussed.
AB - Nanolasers are key elements in the implementation of optical integrated circuits owing to their low lasing thresholds, high energy efficiencies, and high modulation speeds. With the development of semiconductor wafer growth and nanofabrication techniques, various types of wavelength-scale and subwavelength-scale nanolasers have been proposed. For example, photonic crystal lasers and plasmonic lasers based on the feedback mechanisms of the photonic bandgap and surface plasmon polaritons, respectively, have been successfully demonstrated. More recently, nanolasers employing new mechanisms of light confinement, including parity–time symmetry lasers, photonic topological insulator lasers, and bound states in the continuum lasers, have been developed. Here, the operational mechanisms, optical characterizations, and practical applications of these nanolasers based on recent research results are outlined. Their scientific and engineering challenges are also discussed.
KW - bound states in the continuum laser
KW - parity–time symmetry lasers
KW - photonic crystal lasers
KW - photonic topological insulator lasers
KW - plasmonic lasers
UR - http://www.scopus.com/inward/record.url?scp=85091019685&partnerID=8YFLogxK
U2 - 10.1002/adma.202001996
DO - 10.1002/adma.202001996
M3 - Article
C2 - 32945000
AN - SCOPUS:85091019685
VL - 32
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 51
M1 - 2001996
ER -