[특허]Light amplifiers employing collisions to produce a population inversion

Light amplifiers employing collisions to produce a population inversion 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01S-003/00 H01S-003/22 H01S-030/097
출원번호	US-0823611 (1977-08-11)
발명자 / 주소	Gould, Gordon
대리인 / 주소	Lerner, David, Littenberg, Krumholz & Mentlik
인용정보	피인용 횟수 : 58 인용 특허 : 0

초록 ▼

This application discloses light amplification apparatus in which population inversion is created in which energized particles collide with a lasing medium to create a population inversion. In the preferred embodiment the energized particles are atoms, ions, or molecules different than the lasing medium which are excited to a long-lived state above the ground state. Various materials usable in such light amplification apparatus are disclosed as well as means for passing light through an amplification region.

대표청구항 ▼

1. Light amplification apparatus including a bounded volume containing a substance, the atoms, ions or molecules of which have well defined energy states, including a pair of states which differ in energy by an amount corresponding to light frequencies; means for providing other particles within said bounded volume which have the proper energy so as to be susceptible of transferring said energy to said atoms, ions or molecules, upon collision, thereby producing a greater population of atoms, ions or molecules of said substance in the higher of said pair of states; and means for defining a light path through said bounded volume which enables a stimulating light beam to selectively stimulate emission of light in said bounded volume, said light thus emitted having the same direction, frequency phase and polarization as the stimulating light. 2. The light amplification apparatus as defined in claim 1 in which said other particles provided in said bounded volume are atoms, ions or molecules different than said substance, said other particles being excited to a long-lived state above the ground state. 3. The light amplification apparatus as defined in claim 2 in which said means for producing said excited particles includes means for producing an electric current in said bounded volume. 4. The light amplification apparatus as defined in claim 3 also including means for providing egress of light from said bounded volume. 5. The light amplification apparatus as defined in claim 1 in which said other particles provided in said bounded volume are electrons. 6. The light amplification apparatus as defined in claim 5 also including means for providing egress of light from said bounded volume. 7. The light amplification apparatus as defined in claim 1 in which said substance is a first noble gas and said other particles are a second noble gas. 8. The light amplification apparatus as defined in claim 1 also including means to enable said substance to emit said light, when stimulated by said stimulating light beam in a wave train that has a sharply rising intensity, with an intensity rise time of less than approximately 10 -7 seconds. 9. A method of providing light by stimulated emission including the steps of: (a) providing a substance in a bounded volume, the atoms, ions, or molecules of which have well defined energy states, including a pair of states which differ in energy by an amount corresponding to light frequencies; (b) providing other particles within said bounded volume which have the proper energy so as to be susceptible of transferring energy to said atoms, ions or molecules, upon collision, thereby producing a greater population of atoms, ions or molecules of said substance in the higher of said pair of states; and (c) directing stimulating light along a path through said bounded volume which enables the stimulating light to selectively stimulate emission of light in said bounded volume, said light thus emitted having the same direction, frequency phase and polarization as the stimulating light. 10. The method as defined in claim 9 in which said other particles provided in said bounded volume are atoms, ions or molecules different than said substance, said method also including the step of: (d) exciting said other particles to a long-lived state above the ground state. 11. The method as defined in claim 10 in which said other particles are excited by an electric current. 12. The method as defined in claim 9 in which said other particles provided in said bounded volume are electrons. 13. The method as defined in claim 9 in which said substance is a first noble gas and said other particles are a second noble gas. 14. The light amplification apparatus as defined in claim 1 in which the transition between said pair of states is an electric dipole transition. 15. The light amplification apparatus as defined in claim 14 in which the spontaneous decay rate from the lower of said pair of states is greater than from the higher of said pair of states.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Light amplifiers employing collisions to produce a population inversion 원문보기

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Light amplifiers employing collisions to produce a population inversion 원문보기

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