BE762028A - Dispositif d'amelioration des qualites optiques d'un faisceau laser - Google Patents

Dispositif d'amelioration des qualites optiques d'un faisceau laser

Info

Publication number
BE762028A
BE762028A BE762028A BE762028A BE762028A BE 762028 A BE762028 A BE 762028A BE 762028 A BE762028 A BE 762028A BE 762028 A BE762028 A BE 762028A BE 762028 A BE762028 A BE 762028A
Authority
BE
Belgium
Prior art keywords
improving
laser beam
optical qualities
qualities
optical
Prior art date
Application number
BE762028A
Other languages
English (en)
Inventor
L Jacob
Original Assignee
Commissariat Energie Atomique
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Commissariat Energie Atomique filed Critical Commissariat Energie Atomique
Publication of BE762028A publication Critical patent/BE762028A/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/095—Refractive optical elements
    • G02B27/0972—Prisms
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Lasers (AREA)
BE762028A 1970-02-10 1971-01-25 Dispositif d'amelioration des qualites optiques d'un faisceau laser BE762028A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7004668A FR2077738A1 (fr) 1970-02-10 1970-02-10

Publications (1)

Publication Number Publication Date
BE762028A true BE762028A (fr) 1971-07-01

Family

ID=9050373

Family Applications (1)

Application Number Title Priority Date Filing Date
BE762028A BE762028A (fr) 1970-02-10 1971-01-25 Dispositif d'amelioration des qualites optiques d'un faisceau laser

Country Status (6)

Country Link
US (1) US3674340A (fr)
BE (1) BE762028A (fr)
DE (1) DE2105752A1 (fr)
FR (1) FR2077738A1 (fr)
GB (1) GB1339846A (fr)
NL (1) NL7101452A (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7506495A (nl) * 1975-06-02 1976-12-06 Philips Nv Inrichting voor het uitlezen van een registratie- drager.
US5783797A (en) * 1996-05-09 1998-07-21 Seagate Technology, Inc. Laser texturing of magnetic recording medium using a crystal material
JP3629275B2 (ja) * 1996-05-09 2005-03-16 シーゲイト テクノロジー エルエルシー 多重レンズフォーカシングを利用するレーザ照射によって磁気記録媒体に集合組織を形成する方法
US5955154A (en) * 1996-05-09 1999-09-21 Seagate Technology, Inc. Magnetic recording medium with laser textured glass or glass-ceramic substrate
US5895712A (en) * 1996-05-21 1999-04-20 Seagate Technology, Inc. Magnetic recording medium with improved coercivity
US6020045A (en) * 1996-06-05 2000-02-01 Seagate Technology, Inc. Textured magnetic recording medium having a transition zone
US5965215A (en) 1997-01-15 1999-10-12 Seagate Technology, Inc. Method for laser texturing a landing zone and a data zone of a magnetic recording medium
US5952058A (en) 1997-01-15 1999-09-14 Seagate Technology, Inc. Laser texturing magnetic recording medium using fiber optics
US6021032A (en) 1997-01-15 2000-02-01 Seagate Technology, Inc. Magnetic recording medium with laser textured data zone
US6207926B1 (en) 1997-01-15 2001-03-27 Seagate Technology Llc Fiber optic laser texturing with optical probe feedback control
US5853820A (en) * 1997-06-23 1998-12-29 Seagate Technology, Inc. Controlled laser texturing glass-ceramic substrates for magnetic recording media
US5837330A (en) * 1997-08-28 1998-11-17 Seagate Technology, Inc. Dual fiber optic laser texturing
US5956217A (en) * 1997-08-28 1999-09-21 Seagate Technology, Inc. Reference disk for determining glide height
US6068728A (en) * 1997-08-28 2000-05-30 Seagate Technology, Inc. Laser texturing with reverse lens focusing system
US5861196A (en) * 1997-09-25 1999-01-19 Seagate Technology, Inc. Laser texturing a glass or glass-ceramic substrate
US5945197A (en) * 1997-10-27 1999-08-31 Seagate Technology Laser texturing of magnetic recording medium using multiple lens focusing
US6093472A (en) * 1999-06-23 2000-07-25 Seagate Technology, Inc. Magnetic recording medium with laser textured glass or glass-ceramic substrate
US6468596B1 (en) 1999-07-15 2002-10-22 Seagate Technology Llc Laser-assisted in-situ fractionated lubricant and a new process for surface of magnetic recording media
JPWO2018179642A1 (ja) * 2017-03-30 2019-11-07 株式会社村田製作所 ガスレーザ装置

Also Published As

Publication number Publication date
NL7101452A (fr) 1971-08-12
FR2077738A1 (fr) 1971-11-05
GB1339846A (en) 1973-12-05
US3674340A (en) 1972-07-04
DE2105752A1 (de) 1971-08-26

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