PMID- 31163859
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 27
IP  - 10
DP  - 2019 May 13
TI  - Generalized method for seeking q-preserving configurations of multi-pass cells.
PG  - 14054-14063
LID - 10.1364/OE.27.014054 [doi]
AB  - A method is presented for seeking specified multi-pass cell (MPC) configurations 
      with q-parameters of the input and output Gaussian beams that remain the same 
      (q-preserving configurations). The Frobenius norm (F-norm) is chosen as the 
      quantitative criterion of the deviation between the transfer matrix of the MPC 
      configurations and identity matrix. When the deviation is down near to zero, the 
      corresponding configuration is close to an ideal q-preserving configuration. In 
      contrast to common 2 x 2 transfer matrixes that are only applicable to MPCs with 
      negligible astigmatism, we adopt 4 x 4 transfer matrixes that are also workable 
      for multi-pass systems with astigmatism. To demonstrate the validation of the 
      method, several q-preserving structures of four-objective multi-pass matrix 
      system (FO-MMS) and double-row circular MPC (DR-CMPC), which are two 
      fundamentally different MPC types, are illustrated. The variation tendencies of 
      the quantitative deviation between the transfer matrix and the identity matrix 
      are discussed in detail for each structure as functions of structural parameters. 
      The optimal q-preserving structures are found for FO-MMS and DR-CMPC, with the 
      matrix deviation of 0.0047 and 0.0051, while the corresponding total optical path 
      length (OPL) are 33.6 m and 67.8 m, respectively. The OPL of the optimal DR-CPMC 
      is longer than the traditional CMPC in the state of the art, and the deviation is 
      three orders of magnitude smaller if the similar spherical reflecting surfaces 
      are adopted.
FAU - Yang, Zheng
AU  - Yang Z
FAU - Zou, Mingli
AU  - Zou M
FAU - Sun, Liqun
AU  - Sun L
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
EDAT- 2019/06/06 06:00
MHDA- 2019/06/06 06:01
CRDT- 2019/06/06 06:00
PHST- 2019/06/06 06:00 [entrez]
PHST- 2019/06/06 06:00 [pubmed]
PHST- 2019/06/06 06:01 [medline]
AID - 411888 [pii]
AID - 10.1364/OE.27.014054 [doi]
PST - ppublish
SO  - Opt Express. 2019 May 13;27(10):14054-14063. doi: 10.1364/OE.27.014054.