TY - GEN
T1 - Rotational Quantum Beat Lasing without Inversion
AU - Richter, Maria
AU - Lytova, Marianna
AU - Morales, Felipe
AU - Haessler, Stefan
AU - Smirnova, Olga
AU - Spanner, Michael
AU - Ivanov, Misha
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6/1
Y1 - 2021/6/1
N2 - In standard lasers, light amplification requires population inversion between an upper and a lower state to break the reciprocity between absorption and stimulated emission. However, in a medium prepared in a specific superposition state, quantum interference may fully suppress absorption while leaving stimulated emission intact, opening the possibility of lasing without inversion (LWI) [1]. Conventional LWI schemes generally strive to maintain a specific phase relationship between the lower-lying states that carry most of the population. We present a scheme [2], [3], that does not follow this tradition. It uses only the natural dynamics of a multi-level quantum system and requires no coherence between the excited and the lower electronic states; effectively, LWI comes for free.
AB - In standard lasers, light amplification requires population inversion between an upper and a lower state to break the reciprocity between absorption and stimulated emission. However, in a medium prepared in a specific superposition state, quantum interference may fully suppress absorption while leaving stimulated emission intact, opening the possibility of lasing without inversion (LWI) [1]. Conventional LWI schemes generally strive to maintain a specific phase relationship between the lower-lying states that carry most of the population. We present a scheme [2], [3], that does not follow this tradition. It uses only the natural dynamics of a multi-level quantum system and requires no coherence between the excited and the lower electronic states; effectively, LWI comes for free.
UR - https://www.scopus.com/pages/publications/85117601147
U2 - 10.1109/CLEO/Europe-EQEC52157.2021.9541848
DO - 10.1109/CLEO/Europe-EQEC52157.2021.9541848
M3 - Conference contribution
AN - SCOPUS:85117601147
T3 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
BT - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021
Y2 - 21 June 2021 through 25 June 2021
ER -