GB1160649A - Improvements in or relating to Lasers - Google Patents

Improvements in or relating to Lasers

Info

Publication number
GB1160649A
GB1160649A GB2431867A GB2431867A GB1160649A GB 1160649 A GB1160649 A GB 1160649A GB 2431867 A GB2431867 A GB 2431867A GB 2431867 A GB2431867 A GB 2431867A GB 1160649 A GB1160649 A GB 1160649A
Authority
GB
United Kingdom
Prior art keywords
torr
discharge tube
infra
reflector
less
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2431867A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1160649A publication Critical patent/GB1160649A/en
Expired legal-status Critical Current

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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/034—Optical devices within, or forming part of, the tube, e.g. windows, mirrors
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/22—Gases
    • H01S3/223—Gases the active gas being polyatomic, i.e. containing two or more atoms
    • H01S3/2232—Carbon dioxide (CO2) or monoxide [CO]

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lasers (AREA)
  • ing And Chemical Polishing (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Abstract

1,160,649. Lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 May, 1967 [28 May, 1966], No. 24318/67. Heading H1C. A gaseous infra-red laser comprises a discharge tube closed at one end by means of a plane parallel plate of germanium arranged at right angles to the laser output beam and having a surface which has previously been etched to remove infra-red absorbent surface layers produced by polishing. The plate acts as a resonator reflector as well as an end window for the discharge tube. The other end window and reflector is a concave mirror coated with gold. The active medium may consist of carbon dioxide, nitrogen, water vapour and helium at respective partial pressures of 1, 2À5, 0À2 and 8 Torr. The pressure of argon, krypton and hydrogen present as impurities should be less than 10<SP>-2</SP> Torr, and that of xenon less than 10<SP>-6</SP> Torr.
GB2431867A 1966-05-28 1967-05-25 Improvements in or relating to Lasers Expired GB1160649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6607472A NL150278B (en) 1966-05-28 1966-05-28 DEVICE FOR GENERATING STIMULATED INFRARED EMISSIONS, IRASER.

Publications (1)

Publication Number Publication Date
GB1160649A true GB1160649A (en) 1969-08-06

Family

ID=19796743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2431867A Expired GB1160649A (en) 1966-05-28 1967-05-25 Improvements in or relating to Lasers

Country Status (4)

Country Link
CH (1) CH464381A (en)
DE (1) DE1614253B2 (en)
GB (1) GB1160649A (en)
NL (1) NL150278B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251953A (en) * 1982-08-10 1992-07-22 Wisotzki Juergen Reflectors

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008033299A1 (en) 2008-07-15 2009-12-31 Linde Ag Gas mixture for operating a carbon dioxide laser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251953A (en) * 1982-08-10 1992-07-22 Wisotzki Juergen Reflectors
GB2251953B (en) * 1982-08-10 1992-12-09 Wisotzki Juergen Laser reflector for high energy laser beams

Also Published As

Publication number Publication date
DE1614253A1 (en) 1970-05-27
NL150278B (en) 1976-07-15
NL6607472A (en) 1967-11-29
CH464381A (en) 1968-10-31
DE1614253B2 (en) 1976-05-13

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee