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'? ????'
Table of Contents

?? ??? ??? ????? ????? ?? ??? ???????.

 

?? ?? ??? ????? ???? ???? ??????. ??? ???? ??, ??, ?? ??? ?? ??? ??? ???? ?? ?? ??? ??? ??? ???. ??? ?? ?? ?????? CODE V? ??? ???? ?? ??? ??????? Beam Synthesis Propagation, BSP ??? ?????. ? ?????? ?? ?? ?????? ? ????? BSP? ??? ????, ??? ?? ?????? ?? ??? ???????.

Why Physical Optics Simulation?

? ?? ?? ????????

The Importance of Physical Optics

?? ??? ???

??? ???, ??? ????, ??? ? ?? ?? ???? ?? ?? ??? ?? ?? ??? ?????. ?? f-number? ??? ?? ??? ??? ?? ????? ??? ??? ?? ???? ??? ???. ?? ?? ?????? ???? ?? ??? ?? ?? ??? ??? ?? ?????? ??? ? ??? ????, ?? ???? ???? ??? ?? ????? ?????.

Methods for Physical Optics Simulation in CODE V

CODE V??? ?? ?? ????? ??

CODE V? Beam Propagation ? ?? ?? ??? ?? ?? ??? ?????. ???? ????? ???? ? ??(Gaussian Beam Trace, BEA), FFT ?? ? ??(Beam Propagation, BPR), ??? Beam Synthesis Propagation (BSP)? ????. ?? ? ??? ?? ?? ? ?? ??? ????, ? ? BSP? ??? ?? ???? ?? ???? ????? ?? ? ?? ?? ?????.

Overview of Beam Synthesis Propagation

Beam Synthesis Propagation ??

What is BSP?

BSP? ?????

BSP? ?? (Beamlet) ??? ?? ? ?? ?????. ? ??? ?? ??? ?? ????? ?????. ??? ?? ??? ? ?? ??? ?? ??? ??? ??? ?????. ??? ??? ?? ????? ???? ???? ??? ?? ??? ???? ?? ??? ????. ? ?? ??? ?? ??? ????? ???? ??? ???? ???? ??? ?????? ????? ?? ??? ???? ? ?? ????. ? ??? ????? ??? ?? (GRIN), ?? ?? ?? ? ???? ?? ??? ???? ?? ??? ??? ?? ?? ?? ?? ??? ? ????. 

BSP is a beamlet-based method for general beam propagation

BSP? ???? ? ??? ?? ?? ??? ?????.

Key Features and Capabilities

?? ?? ? ??

BSP? ??? ?? ?? ??? ?????.

  • ??? ?? ?? ???: ?? ? ?? ??? ??? ?????? ?????.
  • ??? ??? ?? ??? ??: ??? ??? ?? ??? ???? ???? ???? ??????.
  • ??? ??? ??? ??: GRIN, ??? ??, ???? ??(NSS), ?? ? ??? ??? ???? ?? ??? ??? ??? ?????.
  • ?? ?? ??: ?? ???? ???? ?? ??? ???? ???? ?? ??? ???, ??? ????? ????? ?????.
  • Input? Output? ???: ?? ??? Input ?? ??? ????, ??? Output ??? ?????.
BSP¡¯s Pre-Analysis feature recommends analysis parameters that are customized for your lens system

BSP? ?? ?? ??? ?? ???? ?? ???? ?? ????? ?????.

Applications of BSP

BSP? ?? ??

Scanning Optics in Various Applications

??? ???????? ???? ??? ??

??? ??? ???? ??? ???, ??? ???, ??? ???, LiDAR? ?? ??? ???? ?????. ??? ???? ???? ????, ?? ?? ???? ???, ??, ?? ?? ?? ?? ?????. ??? ????? ?? ??? ?? ?? ???? ??????. BSP? ?? ?? ???? ??? ?? ??? ???? ??? ???? ?? ??? ????, ??? ??? ?? ??? ???? ?????.

CODE V BSP? ?? ??? ?? ???? ?? ??? ?? ???? ????? ? ? ?? ??? ??? ????.

Laser Modes Propagation

??? ?? ??

BSP? ??? ???? ?? ????? ?? ???? Hermite-Gaussian ??? ?? ??? ??? ??? ? ????. ??? ??? ??? BSP? ???? ???? ?? ????? ??? ?? ??? ??????? ??? ? ????.

Hermite Gauss complex field propagation through a GRIN coupler

GRIN coupler? ?? Hermite Gauss ??? ??

Interferometry

?? ??

??? ? ?? ???? ?? ?? BSP ??? ??? ???? ? ?? ???, ?? Macro-PLUS? ???? ?? ??? ? ????. ?? ?? ???? arm? ??? arm?? ??? BSP? ???? ?? ???? ??? ????? ???? ???? ?? ??? ??? ? ????. ?? ???? ??? ?? ???? ???? ??? ?? ??? ???? ?? ??? ?? ? ??? ? ????. BSP? ?? ??? ?? ??? ?? ???? ??????? ??? ??? ???? ??? ?? ??? ??? ??? ?? ????? ?????.

CODE V can simulate a bump on a surface using an INT file and see the effect on the interference pattern.

 CODE V? INT ??? ???? ?? ?? ???? ?? (bump)? ??????? ?? ??? ??? ??? ??? ? ????.

Speckled Beam Effect

??? ? ??

???? LiDAR, ? ?? ???, ???? ?? ???? ?? ???? ????? ?? ? ? ?? ?????. ???? ?? ???? ??? ???? ?? ???? ??? ?? ??? ?? ?????. ??? ??? ?? ??? ??? ??? ?? ??? ?? ???? ?? ?? ??? ??? ????.

Using BSP in CODE V, speckled beam irradiance can be modeled for propagation in an optical system simulation

CODE V? BSP? ???? ?? ??? ??????? ??? ?? ??? ? ????? ???? ? ????. 

BSP(Beam Synthesis Propagation)? CODE V?? ??? ??? ????? ???? ??? ?????. ? ?? ?? ??? ??? (Interferogram, INT) ??? ???? ?? ?? ??? ???? ????. ? ???? ??? ?? ?? ?? ???? ?? ?? ?? ??? ???????, ?? ?? Speckle ??? ??? ? ????. ?? ??, ?? ??? ?? 0~1 ?? ??? ?? ?? ??? ??? ?, BSP? ??? ?? ???? ???? ???? ??? ?? ??? ??? ? ????.

? ??? ?? ????? Speckle ? ??? ??? ???? ? ?? ?????. ?? ??, LiDAR ????? BSP? ???? ??? ?? ??? ???? ???? ??? ??? ??? ???? ? ????. ?? ?? ?? ? ???(SNR)? ????, ??? ???? ??? ??? ? ???? ??? ? ??, ??? ??? ?? ????? ??? ? ????.

Modeling Mid-Spatial Frequency Surface Errors

?? ?? ??? ?? ?? ???

?? ????? ?? ??? ??? ??? ?? ??? ?????. ? ???? ?? ?? ???(mid-spatial frequency) ?? ??? ??? ?? ???(micro-roughness)? ???? ?? ??(figure error) ??? ???? ?????.? ???? ? ?? ??(PSF, Point Spread Function)? ?? ?? ??(MTF, Modulation Transfer Function)? ??? ??? ?? ? ????.

BSP? ??? ???? ?? ?? ??? ?? ??? ??? ??? ? ? ?? ??? ??? ?????. ?? ?? ?? ???? ??(PSD) ??? ??? ??? ???? ??? ?? ??? ??? ????, ???? ?? ??? ???? ??? ?? ????? ???? ???? ?? ?? ???? ? ??? ???.

?? ??, ?? ??? ??? Cassegrain ?????? BSP? ???? ? ???? ??? ?? ??? ??? ??? ????? ? ? ????. ?? PSF???? ???? ?? ?? ??? ??? ???? ???, ???? ??? ?? MTF? ??? ??? ?? ??? ? ??? ???. ? ??? ?? ???? ?? ??? ?? ??? ??? ??? ????, ??? ???? ??? ? ????.

??? ?? Cassegrain Ritchey-Chretien ???. BSP? ? ?? ??(Point Spread Function)? ??, ?? ? ??? ?? ????? ?????? ? ????.

Diffractive Optic Zonal Modeling

?? ?? ?? ???

?? ?? ??(DOE, Diffractive Optical Elements)? ??? ?? ???? ?? ???? ? ?????. ??? ??? PSF ?? ??? ? ?? ??? +1 ?? -1 ?? ???? ??? ?? ??? ???? ?? ? ????. BSP? ?? ??? ? ???? ???? ???? ???? ??? ?? ??? ????? ?? PSF? ?? ??? ??? ?????.

?? ??, ?? ??? ?? ?? ?????, BSP? ???? ? ??? ?? ? ??? ??? ????? ????? ? ? ????. ? ??? ?? ?? ????? ???? ?? ??? ??? ??? ?? ???? ??? ? ????. ? ??? ???? ??? ? ?? ??? ?? ??? ???? DOE? ???? ??? ??? ???? ??? ? ??? ?????.

Diffractive Optic Zonal Modeling
PSF Standard Treatment of Diffractives and PSF Physically Modeling Each Zone Individually in CODE V

Ghost Peak Irradiance Analysis Using BSP

BSP? ??? ??? ?? ?? ??

??? ??? ?? ??? ?? ??? ???? ???? ????? BSP? ?? ??? ???? ?? ??? ???? ??? ??? ?????. BSP? ?? ??? ???? ?? ???? ?? ??? ???? ???? ??? ?? ??? ????? ?????.

Ghost Peak Irradiance Analysis Using BSP

CODE V BSP? ?? ??? ??? ?????. CODE V? LightTools? ?? ???? ?? ?? ? ???? ??? ??? ? ????.

Longitudinal PSFs with BSP

BSP? ??? ?? ??? PSF

BSP? ?? (???) ??? ?? ?? ??? ?? (???) ? ?? ?? (PSF)? ???? ?? ??? ? (X-Z ?? Y-Z)?? ??? ???? ??? ? ????. ? ??? ?? ? ?? ?? ?? ? ?? ?? ??? ???? ? ?????. BSP? ??? ??? 90? ?????? ?? ??? ?? ??? ??? ? ? ???, ?? ?? ???? ?? ????? ?? ? ????. 

In CODE V, there are numerous ways to evaluate the transverse image of a point (i.e., X-Y plane) performance.

CODE V?? ? (?: X-Y ?)? ?? ??? ??? ???? ??? ??? ????. 

Conclusion

??

Beam Synthesis Propagation (BSP)? CODE V?? ?? ?? ?????? ???? ??? ???, ?? ???, ???, ???? ?????. BSP? ?? ??? ??? ??? ?? ???? ?? ? ???? ???? ?????. ??? ???, ???, ??? ??? ? ??? ?? ???? BSP? ???? ?? ??? ??? ???? ??? ??? ??? ?? ?? ? ????. 

CODE V BSP ? ??? ??????? ?????