公开(公告)号：US20190121153A1

公开(公告)日：2019-04-25

申请号：US15784789

申请日：2017-10-16

申请人： University of Rochester

发明人： Dustin H. Froula ,  Terrance Kessler

IPC分类号： G02B27/40 ,  G02B5/18 ,  H01S3/30 ,  H05H15/00

摘要： Methods and systems are disclosed for using a chromatic lens system to provide a “flying focus”—i.e., an advanced focusing scheme enabling spatiotemporal control of a focal location. In a method, a photon beam is emitted from a source at a wavelength. The photon beam may have more than one wavelength. The photon beam is focused to a focal location using a chromatic lens system. The focal location is at a first longitudinal distance along an optical axis from the chromatic lens system. The wavelength of the photon beam is changed as a function of time to change the focal location as a function of time. The wavelength may be changed such that the focal location changes with a focal velocity.

公开(公告)号：US10897115B2

公开(公告)日：2021-01-19

申请号：US15721900

申请日：2017-09-30

申请人： University of Rochester

发明人： Dustin H. Froula ,  Terrance Kessler

IPC分类号： H01S3/00 ,  H01S3/097 ,  H01S3/23 ,  G01J11/00 ,  H01S3/30 ,  G02B5/18 ,  H01S3/104 ,  H01S3/0971 ,  H05H15/00

摘要： Methods and systems are disclosed for using a chromatic lens system to provide a “flying focus”—i.e., an advanced focusing scheme enabling spatiotemporal control of a focal location. In a method, a photon beam is emitted from a source at a wavelength. The photon beam may have more than one wavelength. The photon beam is focused to a focal location using a chromatic lens system. The focal location is at a first longitudinal distance along an optical axis from the chromatic lens system. The wavelength of the photon beam is changed as a function of time to change the focal location as a function of time. The wavelength may be changed such that the focal location changes with a focal velocity.