Acknowledgment to Reviewers of Optics in 2021

Rigorous peer-reviews are the basis of high-quality academic publishing. Thanks to the great efforts of our reviewers, Optics was able to maintain its standards for the high quality of its published papers. Thanks to the contribution of our reviewers, in 2021, the median time to first decision was 18.8 days and the median time to publication was 5.1 days. The editors would like to extend their gratitude and recognition to the following reviewers for their precious time and dedication, regardless of whether the papers they reviewed were finally published:

Abani Shankar Nayak	Kiyotaka Fujisaki
Abinaya Priya Venkataraman	Lakshminarayana Gandham
Alexander Aleksandrovich Safonov	Leonardo Chiatti
Andrei Afanasev	Liang Hu
Andrzej Kruk	Marcelo Guimarães
Artur Makar	Marco Battista
Boqiang Shen	Marco Giammarchi
Carlos Marques	Mariya Aleksandrova
Changho Lee	Marjan Kashfipour
Chin-Chun Tsai	Matej Njegovec
Cristina Moreno-Díaz	Mehmet Alp Ilgaz
Dariusz Kurz	Meimei Lai
David Baeza Moyano	Michel Darmon
Davide Rocco	Mircea Hulea
Denis Ivanov	Nozhan Bayat
Dmitry Makarov	Patrice Salzenstein
Emanuele Polino	Paulo A. Ribeiro
Fabio Corti	Paulo Monteiro
Feifei Wang	Pengfei Zhang
Florian Klämpfl	Reyhaneh Jannesari
Francesco Floris	Ricardo Rodríguez-Cielos
Germán F. De La Fuente	Robert Apsimon
Giacomo Insero	Ruchire Wijesinghe
Grzegorz Stepniak	Sabyasachi Barik
Guangju Zhang	Sasha Buchman
Hui Min Leung	Sergey Kobtsev
Ireneusz Stefaniak	Serguei Sekatski
Izabela Szymczak-Pajor	Shefali Saxena
Jean-Pierre Huignard	Ștefan Țălu
Jian Xu	Szymon Łoś
Jianming Wen	Till Leissner
Jose M. Cabeza-Lainez	Xinbing Song
José-María Sánchez-González	Xinbo Li
Josep Canet-Ferrer	Zhen Qiu
Jozwik Michal