Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.817802
T. Khayim, A. Maruko, A. Morimoto, T. Kobayashi
An ultrafast light deflector at microwave frequency is useful in various fields, such as optical metrology, spectroscopy and optical computing, because of its potential for ultrashort optical pulse generation and optical signal processing such as serial-parallel conversion. We have developed several kinds of electrooptic scanners and deflectors operating at a microwave frequency, and have shown application of an electrooptic traveling phase grating to ultrafast unidirectional deflection. Further, we have proposed that an electrooptic modulator with slant-stripe-type periodic domain inversion acts as an efficient traveling phase grating which can operate at a frequency over ten gigahertz, in the same way as a quasi-velocity-matched phase modulator. Here, we report experimental demonstration of ultrafast unidirectional deflection by this electrooptic traveling phase grating.
{"title":"Ultrafast unidirectional deflection by electrooptic traveling phase grating using periodic domain inversion","authors":"T. Khayim, A. Maruko, A. Morimoto, T. Kobayashi","doi":"10.1109/CLEOPR.1999.817802","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.817802","url":null,"abstract":"An ultrafast light deflector at microwave frequency is useful in various fields, such as optical metrology, spectroscopy and optical computing, because of its potential for ultrashort optical pulse generation and optical signal processing such as serial-parallel conversion. We have developed several kinds of electrooptic scanners and deflectors operating at a microwave frequency, and have shown application of an electrooptic traveling phase grating to ultrafast unidirectional deflection. Further, we have proposed that an electrooptic modulator with slant-stripe-type periodic domain inversion acts as an efficient traveling phase grating which can operate at a frequency over ten gigahertz, in the same way as a quasi-velocity-matched phase modulator. Here, we report experimental demonstration of ultrafast unidirectional deflection by this electrooptic traveling phase grating.","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133398146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.817943
Xuzong Chen, Keming Zhang, Yiqiu Wang, T. Kasahara, Y. Akimoto
In this paper, we theoretically predicate over 700 groups of stronger hyperfine transitions of the iodine molecule available for a diode laser frequency standard at 630-640nm. The strong transition means that the transition intensity is greater than the intensity of P(33)6-3, beside R(127)11-5).
{"title":"Hyperfine spectra of iodine molecule available to diode laser frequency standard at 630-640 nm (experiment)","authors":"Xuzong Chen, Keming Zhang, Yiqiu Wang, T. Kasahara, Y. Akimoto","doi":"10.1109/CLEOPR.1999.817943","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.817943","url":null,"abstract":"In this paper, we theoretically predicate over 700 groups of stronger hyperfine transitions of the iodine molecule available for a diode laser frequency standard at 630-640nm. The strong transition means that the transition intensity is greater than the intensity of P(33)6-3, beside R(127)11-5).","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127842878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.811347
M. Zagidullin
The jet type singlet oxygen generator produces O/sub 2/(/sup 1//spl Delta/) at high pressures with high O/sub 2/(/sup 1//spl Delta/) yield. In the traditional version of the JSOG the gas outlet was located in the side wall of the JSOG body. This set-up of the JSOG has low capability for scaling. The counterflow JSOG with vertical gas outlet has no limitation for scaling. The cross section of the reaction zone of JSOG should be equal to the cross section of the laser cavity for scaling. The main goal of the study of Verti-JSOG is to achieve the maximum oxygen flux in the reaction zone of the JSOG for minimizing of the potential large scale JSOG and powerful COIL. At this maximum oxygen flux the O/sub 2/(/sup 1//spl Delta/) yield should be high (>60%) and chlorine utilization should be more than 90%. The maximum oxygen flux is limited by these two main requirements, droplet content at the exit of JSOG and the hydrodynamic stability of JSOG operation. The hydrodynamic stability of the JSOG means that the ejection of the BHP foam into the vacuum duct doesn't take place. The same amount of droplets will be at the exit of any kind of SOG in all cases. But up to any critical value of the droplet content it has no serious effect on COIL operation. The O/sub 2/(/sup 1//spl Delta/) yield and Cl/sub 2/ utilization may be predicted on the basis of a kind of kinetic model.
{"title":"Current COIL research in Lebedev Physical Institute, Samara Branch","authors":"M. Zagidullin","doi":"10.1109/CLEOPR.1999.811347","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.811347","url":null,"abstract":"The jet type singlet oxygen generator produces O/sub 2/(/sup 1//spl Delta/) at high pressures with high O/sub 2/(/sup 1//spl Delta/) yield. In the traditional version of the JSOG the gas outlet was located in the side wall of the JSOG body. This set-up of the JSOG has low capability for scaling. The counterflow JSOG with vertical gas outlet has no limitation for scaling. The cross section of the reaction zone of JSOG should be equal to the cross section of the laser cavity for scaling. The main goal of the study of Verti-JSOG is to achieve the maximum oxygen flux in the reaction zone of the JSOG for minimizing of the potential large scale JSOG and powerful COIL. At this maximum oxygen flux the O/sub 2/(/sup 1//spl Delta/) yield should be high (>60%) and chlorine utilization should be more than 90%. The maximum oxygen flux is limited by these two main requirements, droplet content at the exit of JSOG and the hydrodynamic stability of JSOG operation. The hydrodynamic stability of the JSOG means that the ejection of the BHP foam into the vacuum duct doesn't take place. The same amount of droplets will be at the exit of any kind of SOG in all cases. But up to any critical value of the droplet content it has no serious effect on COIL operation. The O/sub 2/(/sup 1//spl Delta/) yield and Cl/sub 2/ utilization may be predicted on the basis of a kind of kinetic model.","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115467460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.811612
T. Nishikawa, H. Nakano, N. Uesugi, M. Nakao
X-ray generation from femtosecond laser-produced plasma is an attractive way to obtain short pulse X-rays. However, due to the formation of solid density plasma at a target surface, most of the incident femtosecond laser pulse is reflected and thus the conversion efficiency is limited. There is a need for higher efficiency of conversion to the X-ray wavelength region from the viewpoint of practical application. One way to increase the conversion efficiency is to form a pre-plasma before the incidence of an intense main pulse. X-ray generation enhancement by using a femtosecond pre-pulse has been demonstrated by several authors. However, the emitted X-ray pulse duration becomes considerably long with this method. Another attractive way to increase the efficiency is to adopt a structured surface target. Experiments with metal (gold and aluminum) cluster targets made by evaporating metal in a background of several Torr of gas and porous Si targets made by anodizing have been demonstrated. They achieved X-ray conversion efficiency enhancement of one or two orders of magnitude in hard X-ray energy regions (>1 kev). However, no large enhancement was obtained in soft X ray energy regions (<1 kev). The report shows that by using a nanohole-alumina target made by anodizing an Al plate (99.99%), X-ray emission can be enhanced even in soft X-ray energy regions (<1 kev).
{"title":"Enhanced X-ray generation from femtosecond-laser-produced plasma by using a nanohole-alumina target","authors":"T. Nishikawa, H. Nakano, N. Uesugi, M. Nakao","doi":"10.1109/CLEOPR.1999.811612","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.811612","url":null,"abstract":"X-ray generation from femtosecond laser-produced plasma is an attractive way to obtain short pulse X-rays. However, due to the formation of solid density plasma at a target surface, most of the incident femtosecond laser pulse is reflected and thus the conversion efficiency is limited. There is a need for higher efficiency of conversion to the X-ray wavelength region from the viewpoint of practical application. One way to increase the conversion efficiency is to form a pre-plasma before the incidence of an intense main pulse. X-ray generation enhancement by using a femtosecond pre-pulse has been demonstrated by several authors. However, the emitted X-ray pulse duration becomes considerably long with this method. Another attractive way to increase the efficiency is to adopt a structured surface target. Experiments with metal (gold and aluminum) cluster targets made by evaporating metal in a background of several Torr of gas and porous Si targets made by anodizing have been demonstrated. They achieved X-ray conversion efficiency enhancement of one or two orders of magnitude in hard X-ray energy regions (>1 kev). However, no large enhancement was obtained in soft X ray energy regions (<1 kev). The report shows that by using a nanohole-alumina target made by anodizing an Al plate (99.99%), X-ray emission can be enhanced even in soft X-ray energy regions (<1 kev).","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"260 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115815156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.814779
H. Sato, M. Komori, A. Taike, M. Aoki, T. Sudoh, K. Uomi
Highly efficient fiber-laser coupling and wide-temperature-range (WTR) operation are desirable for the light sources used in low-cost optical modules. To improve the optical coupling efficiency, the integration of a beam-expander (BEX) with laser diodes has been extensively studied. Moreover, a gain-coupled DFB-LD incorporating a current blocking grating has demonstrated high single-mode stability over a wide temperature range. Thus, the BEX integrated gain-coupled DFB-LD is quite promising for use in low-cost high-bit-rate optical modules. In this paper, we report a BEX integrated gain-coupled DFB laser with a current-blocking grating that can operate over a temperature range of -40 to 85/spl deg/C.
{"title":"Wide temperature range operation of a 1.3-/spl mu/m beam-expander integrated gain-coupled distributed feedback laser diode","authors":"H. Sato, M. Komori, A. Taike, M. Aoki, T. Sudoh, K. Uomi","doi":"10.1109/CLEOPR.1999.814779","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.814779","url":null,"abstract":"Highly efficient fiber-laser coupling and wide-temperature-range (WTR) operation are desirable for the light sources used in low-cost optical modules. To improve the optical coupling efficiency, the integration of a beam-expander (BEX) with laser diodes has been extensively studied. Moreover, a gain-coupled DFB-LD incorporating a current blocking grating has demonstrated high single-mode stability over a wide temperature range. Thus, the BEX integrated gain-coupled DFB-LD is quite promising for use in low-cost high-bit-rate optical modules. In this paper, we report a BEX integrated gain-coupled DFB laser with a current-blocking grating that can operate over a temperature range of -40 to 85/spl deg/C.","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114448130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.811366
S. Noda
We report our new approach to develop the complete three-dimensional photonic crystal and the future prospects. Our photonic crystal is constructed with GaAs (or InP) stripes stacked by a wafer-fusion technique to form an asymmetric face-centered cubic (A-FCC) structure. The stacked four layers correspond to the one-period of the A-FCC structure. The band structure has a complete photonic band gap for all wave vectors. Moreover, since the crystal is constructed with a III-V semiconductor, which is widely utilized for optoelectronic devices, by the wafer-bonding technique it is possible to introduce arbitrary defect states and light-emitters and to form an electronically active interface. Thus, once the 3D photonic crystal is realized, it will open a door for various applications including an active quantum device such as zero-threshold laser.
{"title":"Three-dimensional photonic crystals and their applications","authors":"S. Noda","doi":"10.1109/CLEOPR.1999.811366","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.811366","url":null,"abstract":"We report our new approach to develop the complete three-dimensional photonic crystal and the future prospects. Our photonic crystal is constructed with GaAs (or InP) stripes stacked by a wafer-fusion technique to form an asymmetric face-centered cubic (A-FCC) structure. The stacked four layers correspond to the one-period of the A-FCC structure. The band structure has a complete photonic band gap for all wave vectors. Moreover, since the crystal is constructed with a III-V semiconductor, which is widely utilized for optoelectronic devices, by the wafer-bonding technique it is possible to introduce arbitrary defect states and light-emitters and to form an electronically active interface. Thus, once the 3D photonic crystal is realized, it will open a door for various applications including an active quantum device such as zero-threshold laser.","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114959973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.817910
M. Galvez, R. Macatangay, I.B.T. Lim, E. Vallar
The paper discusses the importance of considering the effect of multiple scattering on lidar data. It is shown that a strong correlation exists between the Monte Carlo and depolarization lidar techniques. Both techniques also point out that the mean correction factor F~ depends on the penetration depth and that F~ approaches a limiting value as the penetration depth increases. The dependence of F~ with penetration depth must be considered in the lidar inversion process. Further studies are being performed to investigate the dependence of the correction factor on the wavelength of the incident radiation and on the size and composition of the particles.
{"title":"Analysis of the multiple scattering effects on clouds using Monte Carlo and depolarization lidar method","authors":"M. Galvez, R. Macatangay, I.B.T. Lim, E. Vallar","doi":"10.1109/CLEOPR.1999.817910","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.817910","url":null,"abstract":"The paper discusses the importance of considering the effect of multiple scattering on lidar data. It is shown that a strong correlation exists between the Monte Carlo and depolarization lidar techniques. Both techniques also point out that the mean correction factor F~ depends on the penetration depth and that F~ approaches a limiting value as the penetration depth increases. The dependence of F~ with penetration depth must be considered in the lidar inversion process. Further studies are being performed to investigate the dependence of the correction factor on the wavelength of the incident radiation and on the size and composition of the particles.","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116967420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.811379
Y. Izawa, M. Yamanaka, S. Nakai
Driver technology is a key issue for Inertial Fusion Energy (IFE) development. A diode pumped solid-state laser (DPSSL) is expected to be a promising candidate of reactor driver for IFE. The specifications required for the IFE driver are 2-5 MJ output pulse energy, 10-20 Hz repetition rate, 500-200 nm laser wavelength, and >10% electrical efficiency. We have newly designed a Nd:YAG DPSSL driver module based on a water cooled zig-zag path slab amplifier, which can deliver 10 kJ output energy at 350 nm with 12 Hz repetition. The module consists of 15 beamlets and each beamlet is a double 4-pass amplifier system as it plays a role of both pre-amplifier (4-pass) and main amplifier (4-pass). The laser driver producing a 4 MJ blue output consists of 400 modules.
{"title":"Development of high-power DPSSL and its application","authors":"Y. Izawa, M. Yamanaka, S. Nakai","doi":"10.1109/CLEOPR.1999.811379","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.811379","url":null,"abstract":"Driver technology is a key issue for Inertial Fusion Energy (IFE) development. A diode pumped solid-state laser (DPSSL) is expected to be a promising candidate of reactor driver for IFE. The specifications required for the IFE driver are 2-5 MJ output pulse energy, 10-20 Hz repetition rate, 500-200 nm laser wavelength, and >10% electrical efficiency. We have newly designed a Nd:YAG DPSSL driver module based on a water cooled zig-zag path slab amplifier, which can deliver 10 kJ output energy at 350 nm with 12 Hz repetition. The module consists of 15 beamlets and each beamlet is a double 4-pass amplifier system as it plays a role of both pre-amplifier (4-pass) and main amplifier (4-pass). The laser driver producing a 4 MJ blue output consists of 400 modules.","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"289 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120847551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.817825
M. Endo, H. Tsuchida
The precise measurement of difference frequencies between two lasers in a terahertz (THz) region is a basic technique for optical frequency standards and for many other applications, such as dense WDM communication systems. Frequency difference measurements based on the beat signal between two lasers become quite difficult when the frequency difference exceeds the detector bandwidth. An optical frequency comb (OFC) generator with an electro-optic (EO) phase modulator inside a Fabry-Perot cavity can overcome this problem. The OFC generator creates a large number of sidebands, which can be applied for frequency markers. In conventional OFC generation, modulation sidebands appears on both sides of the carrier, which is a disadvantage for the efficient use of frequency bandwidth. The limit of the frequency difference measurement with this scheme depends on the power degradation in the sidebands. We propose an alternative technique for generating OFC which employs a dual-electrode Mach-Zehnder Modulator (D-MZM) inside a fiber recirculating loop to generate optical single sideband (SSB). This enables the efficient use of the frequency bandwidth. An optical amplifier is used in the loop to compensate for the losses.
{"title":"Investigation of single sideband optical frequency comb generations using a dual-electrode Mach-Zehnder modulator in a fiber recirculating loop","authors":"M. Endo, H. Tsuchida","doi":"10.1109/CLEOPR.1999.817825","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.817825","url":null,"abstract":"The precise measurement of difference frequencies between two lasers in a terahertz (THz) region is a basic technique for optical frequency standards and for many other applications, such as dense WDM communication systems. Frequency difference measurements based on the beat signal between two lasers become quite difficult when the frequency difference exceeds the detector bandwidth. An optical frequency comb (OFC) generator with an electro-optic (EO) phase modulator inside a Fabry-Perot cavity can overcome this problem. The OFC generator creates a large number of sidebands, which can be applied for frequency markers. In conventional OFC generation, modulation sidebands appears on both sides of the carrier, which is a disadvantage for the efficient use of frequency bandwidth. The limit of the frequency difference measurement with this scheme depends on the power degradation in the sidebands. We propose an alternative technique for generating OFC which employs a dual-electrode Mach-Zehnder Modulator (D-MZM) inside a fiber recirculating loop to generate optical single sideband (SSB). This enables the efficient use of the frequency bandwidth. An optical amplifier is used in the loop to compensate for the losses.","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116362252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1999-08-30DOI: 10.1109/CLEOPR.1999.811397
Tilman Pfau
Matter wave optics has a long tradition spanning over many decades starting with electron and ion optics. These techniques now find commercial applications in microscopy and lithography. Neutron optics contributed many beautiful experiments that tested many fundamental principles in quantum mechanics. Over the last decade the field of atom optics has been developed. In particular the availability of narrowband tunable laser sources has opened up the addressing of the internal electronic degrees of freedom of the atoms and as a result, the manipulation of their trajectories. The dissipative nature of the atom light interaction is used for laser cooling methods e.g. to collimate atomic beams to a high brightness whereas the dispersive nature of the interaction is used to realize different atom optical components like lenses, beam-splitters and mirrors. Consequently atom optics is now at a stage where applications of those elements in more complex systems are studied. An overview of recent developments is given. This includes atom interferometry and atom lithography experiments and experiments with a quasi 2D gas of ultra cold atoms in planar waveguides. Future directions and applications are outlined.
{"title":"Atom optics: basics and applications","authors":"Tilman Pfau","doi":"10.1109/CLEOPR.1999.811397","DOIUrl":"https://doi.org/10.1109/CLEOPR.1999.811397","url":null,"abstract":"Matter wave optics has a long tradition spanning over many decades starting with electron and ion optics. These techniques now find commercial applications in microscopy and lithography. Neutron optics contributed many beautiful experiments that tested many fundamental principles in quantum mechanics. Over the last decade the field of atom optics has been developed. In particular the availability of narrowband tunable laser sources has opened up the addressing of the internal electronic degrees of freedom of the atoms and as a result, the manipulation of their trajectories. The dissipative nature of the atom light interaction is used for laser cooling methods e.g. to collimate atomic beams to a high brightness whereas the dispersive nature of the interaction is used to realize different atom optical components like lenses, beam-splitters and mirrors. Consequently atom optics is now at a stage where applications of those elements in more complex systems are studied. An overview of recent developments is given. This includes atom interferometry and atom lithography experiments and experiments with a quasi 2D gas of ultra cold atoms in planar waveguides. Future directions and applications are outlined.","PeriodicalId":408728,"journal":{"name":"Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)","volume":"14 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123516188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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