Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
89 words
In a far infrared laser apparatus comprising a laser cavity, a lasing medium disposed in said cavity, first and second opposing reflecting surfaces, and means for introducing a beam of pumping infrared radiation; an improved output coupler serving as one of said first and second opposing surfaces, comprising: a metal layer having a multiplicity of apertures therein; and at least one layer of dielectric material disposed over said metal layer, said dielectric material being selected to be substantially reflective of infrared radiation and substantially transmitting of far infrared radiation.
Claim 2
Dependent Claim
89 words
In a far infrared laser apparatus comprising a laser cavity, a lasing medium disposed in said cavity, first and second opposing reflecting surfaces, and means for introducing a beam of pumping infrared radiation; an improved output coupler serving as one of said first and second opposing surfaces, comprising: a metal layer having a multiplicity of apertures therein; and at least one layer of dielectric material disposed over said metal layer, said dielectric material being selected to be substantially reflective of infrared radiation and substantially transmitting of far infrared radiation.
Claim 3
Dependent Claim
18 words
The apparatus as defined by claim 1 wherein said at least one dielectric layer comprises a germanium layer.
Claim 4
Dependent Claim
19 words
The apparatus as defined by claim 1 wherein said at least one dielectric layer comprises a calcium fluoride layer.
Claim 5
Dependent Claim
22 words
The apparatus as defined by claim 1 wherein said dielectric layer comprises a layer of germanium and a layer of calcium fluoride.
Claim 6
Dependent Claim
19 words
The apparatus as defined by claim 4 wherein said semiconductor layer comprises alternating layers of germanium and calcium fluoride.
Claim 7
Dependent Claim
20 words
The apparatus as defined by claim 5 wherein said layers comprise a quarter wave stack at the pumping radiation wavelength.
Claim 8
Dependent Claim
15 words
The apparatus as defined by claim 1 wherein said metal layer comprises a metallic grid.
Claim 9
Dependent Claim
16 words
Apparatus as defined by claim 5 wherein said metal layer is deposited on a silicon substrate.
Claim 10
Dependent Claim
19 words
Apparatus as defined by claim 5 wherein said first reflecting surface comprises an input mirror having an aperture therein.
Claim 11
Dependent Claim
14 words
Apparatus as defined by claim 5 wherein said metal layer is formed of nickel.
Claim 12
Dependent Claim
50 words
An output coupler for a far infrared laser, comprising: a metal layer having a multiplicity of apertures therein; and at least one layer of dielectric material disposed over said metal layer, said dielectric material being selected to be substantially reflective of infrared radiation and substantially transmitting of far infrared radiation.
Claim 13
Dependent Claim
50 words
An output coupler for a far infrared laser, comprising: a metal layer having a multiplicity of apertures therein; and at least one layer of dielectric material disposed over said metal layer, said dielectric material being selected to be substantially reflective of infrared radiation and substantially transmitting of far infrared radiation.
Claim 14
Dependent Claim
19 words
The output coupler as defined by claim 11 wherein said at least one dielectric layer comprises a germanium layer.
Claim 15
Dependent Claim
23 words
The output coupler as defined by claim 11 wherein said dielectric layer comprises a layer of germanium and a layer of calcium fluoride.
Claim 16
Dependent Claim
20 words
The output coupler as defined by claim 11 wherein said dielectric layer comprises alternating layers of germanium and calcium fluoride.
Claim 17
Dependent Claim
25 words
The output coupler as defined by claim 14 wherein said layers comprise a quarter wave stack at the wavelength of pumping radiation to be utilized.
Claim 18
Dependent Claim
16 words
The output coupler as define by claim 11 wherein said metal layer comprises a metallic grid.