Related papers: QUIET - Measuring the CMB polarization with cohere…

CLASS Angular Power Spectra and Map-Component Analysis for 40 GHz Observations through 2022

Measurement of the largest angular scale ($\ell < 30$) features of the cosmic microwave background (CMB) polarization is a powerful way to constrain the optical depth to reionization and search for the signature of inflation through the…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-15 Joseph R. Eimer , Yunyang Li , Michael K. Brewer , Rui Shi , Aamir Ali , John W. Appel , Charles L. Bennett , Sarah Marie Bruno , Ricardo Bustos , David T. Chuss , Joseph Cleary , Sumit Dahal , Rahul Datta , Jullianna Denes Couto , Kevin L. Denis , Rolando Dünner , Thomas Essinger-Hileman , Pedro Fluxá , Johannes Hubmayer , Kathleen Harrington , Jeffrey Iuliano , John Karakla , Tobias A. Marriage , Carolina Núñez , Lucas Parker , Matthew A. Petroff , Rodrigo A. Reeves , Karwan Rostem , Deniz A. N. Valle , Duncan J. Watts , Janet L. Weiland , Edward J. Wollack , Zhilei Xu , Lingzhen Zeng

Coherent and Noncoherent Detection in Dense Arrays: Can We Ignore Mutual Coupling?

This paper investigates the impact of mutual coupling on MIMO systems with densely deployed antennas. Leveraging multiport communication theory, we analyze both coherent and noncoherent detection approaches in a single-user uplink scenario…

Signal Processing · Electrical Eng. & Systems 2026-01-08 Aniol Martí , Luca Sanguinetti , Jaume Riba , Meritxell Lamarca

Passive Array Correlation-Based Imaging in a Random Waveguide

We consider reflector imaging in a weakly random waveguide. We address the situation in which the source is farther from the reflector to be imaged than the energy equipartition distance, but the receiver array is closer to the reflector to…

Analysis of PDEs · Mathematics 2013-04-17 Habib Ammari , Josselin Garnier , Wenjia Jing

The Cosmic Reionization History as Revealed by the CMB Doppler--21-cm Correlation

We show that the epoch(s) of reionization when the ionization fraction of the universe is about half can be determined by correlating Cosmic Microwave Background (CMB) temperature maps with 21-cm line maps at degree scales ($l\sim 100$).…

Astrophysics · Physics 2009-11-13 Marcelo A. Alvarez , Eiichiro Komatsu , Olivier Doré , Paul R. Shapiro

Test Beam Performance Measurements for the Phase I Upgrade of the CMS Pixel Detector

A new pixel detector for the CMS experiment was built in order to cope with the instantaneous luminosities anticipated for the Phase~I Upgrade of the LHC. The new CMS pixel detector provides four-hit tracking with a reduced material budget…

Instrumentation and Detectors · Physics 2017-06-02 M. Dragicevic , M. Friedl , J. Hrubec , H. Steininger , A. Gädda , J. Härkönen , T. Lampén , P. Luukka , T. Peltola , E. Tuominen , E. Tuovinen , A. Winkler , P. Eerola , T. Tuuva , G. Baulieu , G. Boudoul , L. Caponetto , C. Combaret , D. Contardo , T. Dupasquier , G. Gallbit , N. Lumb , L. Mirabito , S. Perries , M. Vander Donckt , S. Viret , C. Bonnin , L. Charles , L. Gross , J. Hosselet , D. Tromson , L. Feld , W. Karpinski , K. Klein , M. Lipinski , G. Pierschel , M. Preuten , M. Rauch , M. Wlochal , M. Aldaya , C. Asawatangtrakuldee , K. Beernaert , D. Bertsche , C. Contreras-Campana , G. Eckerlin , D. Eckstein , T. Eichhorn , E. Gallo , J. Garay Garcia , K. Hansen , M. Haranko , A. Harb , J. Hauk , J. Keaveney , A. Kalogeropoulos , C. Kleinwort , W. Lohmann , R. Mankel , H. Maser , G. Mittag , C. Muhl , A. Mussgiller , D. Pitzl , O. Reichelt , M. Savitskyi , P. Schütze , V. Sola , S. Spannagel , R. Walsh , A. Zuber , H. Biskop , P. Buhmann , M. Centis-Vignali , E. Garutti , J. Haller , M. Hoffmann , R. Klanner , T. Lapsien , M. Matysek , A. Perieanu , Ch. Scharf , P. Schleper , A. Schmidt , J. Schwandt , J. Sonneveld , G. Steinbrück , B. Vormwald , J. Wellhausen , M. Abbas , C. Amstutz , T. Barvich , Ch. Barth , F. Boegelspacher , W. De Boer , E. Butz , M. Casele , F. Colombo , A. Dierlamm , B. Freund , F. Hartmann , S. Heindl , U. Husemann , A. Kornmeyer , S. Kudella , Th. Muller , H. J. Simonis , P. Steck , M. Weber , Th. Weiler , T. Kiss , F. Siklér , T. Tölyhi , V. Veszprémi , P. Cariola , D. Creanza , M. De Palma , G. De Robertis , L. Fiore , M. Franco , F. Loddo , G. Sala , L. Silvestris , G. Maggi , S. My , G. Selvaggi , S. Albergo , G. Cappello , S. Costa , A. Di Mattia , F. Giordano , R. Potenza , M. A. Saizu , A. Tricomi , C. Tuve , E. Focardi , M. E. Dinardo , S. Fiorendi , S. Gennai , S. Malvezzi , R. A. Manzoni , D. Menasce , L. Moroni , D. Pedrini , P. Azzi , N. Bacchetta , D. Bisello , M. Dall'Osso , N. Pozzobon , M. Tosi , L. Alunni Solestizi , M. Biasini , G. M. Bilei , C. Cecchi , B. Checcucci , D. Ciangottini , L. Fanò , C. Gentsos , M. Ionica , R. Leonardi , E. Manoni , G. Mantovani , S. Marconi , V. Mariani , M. Menichelli , A. Modak , A. Morozzi , F. Moscatelli , D. Passeri , P. Placidi , V. Postolache , A. Rossi , A. Saha , A. Santocchia , L. Storchi , D. Spiga , K. Androsov , P. Azzurri , G. Bagliesi , A. Basti , T. Boccali , L. Borrello , F. Bosi , R. Castaldi , M. Ceccanti , M. A. Ciocci , R. Dell'Orso , S. Donato , G. Fedi , A. Giassi , M. T. Grippo , F. Ligabue , G. Magazzu , P. Mammini , F. Mariani , E. Mazzoni , A. Messineo , A. Moggi , F. Morsani , F. Palla , F. Palmonari , A. Profeti , F. Raffaelli , A. Ragonesi , A. Rizzi , A. Soldani , P. Spagnolo , R. Tenchini , G. Tonelli , A. Venturi , P. G. Verdini , D. Abbaneo , I. Ahmed , E. Albert , G. Auzinger , G. Berruti , J. Bonnaud , J. Daguin , A. D'Auria , S. Detraz , O. Dondelewski , B. Engegaard , F. Faccio , N. Frank , K. Gill , A. Honma , A. Kornmayer , A. Labaza , F. Manolescu , I. McGill , S. Mersi , S. Michelis , A. Onnela , M. Ostrega , S. Pavis , A. Peisert , J. -F. Pernot , P. Petagna , H. Postema , K. Rapacz , C. Sigaud , P. Tropea , J. Troska , A. Tsirou , F. Vasey , B. Verlaat , P. Vichoudis , L. Zwalinski , F. Bachmair , R. Becker , D. di Calafiori , B. Casal , P. Berger , L. Djambazov , M. Donega , C. Grab , D. Hits , J. Hoss , G. Kasieczka , W. Lustermann , B. Mangano , M. Marionneau , P. Martinez Ruiz del Arbol , M. Masciovecchio , M. Meinhard , L. Perozzi , U. Roeser , A. Starodumov , V. Tavolaro , R. Wallny , D. Zhu , K. Bösiger , L. Caminada , F. Canelli , V. Chiochia , A. de Cosa , C. Galloni , T. Hreus , B. Kilminster , C. Lange , R. Maier , J. Ngadiuba , D. Pinna , P. Robmann , S. Taroni , Y. Yang , W. Bertl , K. Deiters , W. Erdmann , R. Horisberger , H. -C. Kaestli , D. Kotlinski , U. Langenegger , B. Meier , T. Rohe , S. Streuli , P. -H. Chen , C. Dietz , F. Fiori , U. Grundler , W. -S. Hou , R. -S. Lu , M. Moya , J. -F. Tsai , Y. M. Tzeng , D. Cussans , J. Goldstein , M. Grimes , D. Newbold , P. Hobson , I. D. Reid , G. Auzinger , R. Bainbridge , P. Dauncey , G. Hall , T. James , A. -M. Magnan , M. Pesaresi , D. M. Raymond , K. Uchida , T. Durkin , K. Harder , C. Shepherd-Themistocleous , M. Chertok , J. Conway , R. Conway , C. Flores , R. Lander , D. Pellett , F. Ricci-Tam , M. Squires , J. Thomson , R. Yohay , K. Burt , J. Ellison , G. Hanson , M. Olmedo , W. Si , B. R. Yates , A. Dominguez , R. Bartek , B. Bentele , J. P. Cumalat , W. T. Ford , F. Jensen , A. Johnson , M. Krohn , S. Leontsinis , T. Mulholland , K. Stenson , S. R. Wagner , A. Apresyan , G. Bolla , K. Burkett , J. N. Butler , A. Canepa , H. W. K. Cheung , D. Christian , W. E. Cooper , G. Deptuch , G. Derylo , C. Gingu , S. Grünendahl , S. Hasegawa , J. Hoff , J. Howell , M. Hrycyk , S. Jindariani , M. Johnson , F. Kahlid , S. Kwan , C. M. Lei , R. Lipton , R. Lopes De Sá , T. Liu , S. Los , M. Matulik , P. Merkel , S. Nahn , A. Prosser , R. Rivera , B. Schneider , G. Sellberg , A. Shenai , K. Siehl , L. Spiegel , N. Tran , L. Uplegger , E. Voirin , D. R. Berry , X. Chen , L. Ennesser , A. Evdokimov , C. E. Gerber , S. Makauda , C. Mills , I. D. Sandoval Gonzalez , J. Alimena , L. J. Antonelli , B. Francis , A. Hart , C. S. Hill , N. Parashar , J. Stupak , D. Bortoletto , M. Bubna , N. Hinton , M. Jones , D. H. Miller , X. Shi , P. Baringer , A. Bean , S. Khalil , A. Kropivnitskaya , D. Majumder , E. Schmitz , G. Wilson , A. Ivanov , R. Mendis , T. Mitchell , N. Skhirtladze , R. Taylor , I. Anderson , D. Fehling , A. Gritsan , P. Maksimovic , C. Martin , K. Nash , M. Osherson , M. Swartz , M. Xiao , J. G. Acosta , L. M. Cremaldi , S. Oliveros , L. Perera , D. Summers , K. Bloom , D. R. Claes , C. Fangmeier , R. Gonzalez Suarez , J. Monroy , J. Siado , E. Bartz , Y. Gershtein , E. Halkiadakis , S. Kyriacou , A. Lath , K. Nash , M. Osherson , S. Schnetzer , R. Stone , M. Walker , S. Malik , S. Norberg , J. E. Ramirez Vargas , M. Alyari , J. Dolen , A. Godshalk , C. Harrington , I. Iashvili , A. Kharchilava , D. Nguyen , A. Parker , S. Rappoccio , B. Roozbahani , J. Alexander , J. Chaves , J. Chu , S. Dittmer , K. McDermott , N. Mirman , A. Rinkevicius , A. Ryd , E. Salvati , L. Skinnari , L. Soffi , Z. Tao , J. Thom , J. Tucker , M. Zientek , B. Akgün , K. M. Ecklund , M. Kilpatrick , T. Nussbaum , J. Zabel , P. D'Angelo , W. Johns , K. Rose

Horn Coupled Multichroic Polarimeters for the Atacama Cosmology Telescope Polarization Experiment

Multichroic polarization sensitive detectors enable increased sensitivity and spectral coverage for observations of the Cosmic Microwave Background (CMB). An array optimized for dual frequency detectors can provide 1.7 times gain in…

Instrumentation and Methods for Astrophysics · Physics 2015-06-18 Rahul Datta , Johannes Hubmayr , Charles Munson , Jason Austermann , James Beall , Dan Becker , Hsiao-Mei Cho , Nils Halverson , Gene Hilton , Kent Irwin , Dale Li , Jeff McMahon , Laura Newburgh , John Nibarger , Michael Niemack , Benjamin Schmitt , Harrison Smith , Suzanne Staggs , Jeff Van Lanen , Edward Wollack

Performance and on-sky optical characterization of the SPTpol instrument

In January 2012, the 10m South Pole Telescope (SPT) was equipped with a polarization-sensitive camera, SPTpol, in order to measure the polarization anisotropy of the cosmic microwave background (CMB). Measurements of the polarization of the…

Instrumentation and Methods for Astrophysics · Physics 2012-10-19 E. M. George , P. Ade , K. A. Aird , J. E. Austermann , J. A. Beall , D. Becker , A. Bender , B. A. Benson , L. E. Bleem , J. Britton , J. E. Carlstrom , C. L. Chang , H. C. Chiang , H-M. Cho , T. M. Crawford , A. T. Crites , A. Datesman , T. de Haan , M. A. Dobbs , W. Everett , A. Ewall-Wice , N. W. Halverson , N. Harrington , J. W. Henning , G. C. Hilton , W. L. Holzapfel , S. Hoover , N. Huang , J. Hubmayr , K. D. Irwin , M. Karfunkle , R. Keisler , J. Kennedy , A. T. Lee , E. Leitch , D. Li , M. Lueker , D. P. Marrone , J. J. McMahon , J. Mehl , S. S. Meyer , J. Montgomery , T. E. Montroy , J. Nagy , T. Natoli , J. P. Nibarger , M. D. Niemack , V. Novosad , S. Padin , C. Pryke , C. L. Reichardt , J. E. Ruhl , B. R. Saliwanchik , J. T. Sayre , K. K. Schaffer , E. Shirokoff , K. Story , C. Tucker , K. Vanderlinde , J. D. Vieira , G. Wang , R. Williamson , V. Yefremenko , K. W. Yoon , E. Young

The Simons Observatory: Instrument Overview

The Simons Observatory (SO) will make precise temperature and polarization measurements of the cosmic microwave background (CMB) using a set of telescopes which will cover angular scales between 1 arcminute and tens of degrees, contain over…

Instrumentation and Methods for Astrophysics · Physics 2019-08-13 Nicholas Galitzki , Aamir Ali , Kam S. Arnold , Peter C. Ashton , Jason E. Austermann , Carlo Baccigalupi , Taylor Baildon , Darcy Barron , James A. Beall , Shawn Beckman , Sarah Marie M. Bruno , Sean Bryan , Paolo G. Calisse , Grace E. Chesmore , Yuji Chinone , Steve K. Choi , Gabriele Coppi , Kevin D. Crowley , Kevin T. Crowley , Ari Cukierman , Mark J. Devlin , Simon Dicker , Bradley Dober , Shannon M. Duff , Jo Dunkley , Giulio Fabbian , Patricio A. Gallardo , Martina Gerbino , Neil Goeckner-Wald , Joseph E. Golec , Jon E. Gudmundsson , Erin E. Healy , Shawn Henderson , Charles A. Hill , Gene C. Hilton , Shuay-Pwu Patty Ho , Logan A. Howe , Johannes Hubmayr , Oliver Jeong , Brian Keating , Brian J. Koopman , Kenji Kuichi , Akito Kusaka , Jacob Lashner , Adrian T. Lee , Yaqiong Li , Michele Limon , Marius Lungu , Frederick Matsuda , Philip D. Mauskopf , Andrew J. May , Nialh McCallum , Jeff McMahon , Federico Nati , Michael D. Niemack , John L. Orlowski-Scherer , Stephen C. Parshley , Lucio Piccirillo , Mayuri Sathyanarayana Rao , Christopher Raum , Maria Salatino , Joseph S. Seibert , Carlos Sierra , Max Silva-Feaver , Sara M. Simon , Suzanne T. Staggs , Jason R. Stevens , Aritoki Suzuki , Grant Teply , Robert Thornton , Calvin Tsai , Joel N. Ullom , Eve M. Vavagiakis , Michael R. Vissers , Benjamin Westbrook , Edward J. Wollack , Zhilei Xu , Ningfeng Zhu

Passive array imaging in random media

We present a novel algorithm for high resolution coherent imaging of sound sources in random scattering media using time resolved measurements of the acoustic pressure at an array of receivers. The sound waves travel a long distance between…

Numerical Analysis · Mathematics 2017-12-15 Liliana Borcea , Ilker Kocyigit

Improving terahertz-detection sensitivity of 8x8 FET arrays through liquid-nitrogen cooling in a compact low-noise cryostat

We show that the sensitivity of antenna-coupled field-effect transistors (FETs) to terahertz (THz) radiation improves continuously with decreasing temperature. The noise-equivalent power (NEP) of 540 GHz patch-antenna-coupled FETs decreases…

Applied Physics · Physics 2026-02-13 Jakob Holstein , Nicholas K. North , Arne Hof , Sanchit Kondawar , Dmytro B. But , Mohammed Salih , Lianhe Li , Edmund H. Linfield , A. Giles Davies , Joshua R. Freeman , Alexander Valavanis , Alvydas Lisauskas , Hartmut G. Roskos

Design and performance of wide-band corrugated walls for the BICEP Array detector modules at 30/40 GHz

BICEP Array is a degree-scale Cosmic Microwave Background (CMB) experiment that will search for primordial B-mode polarization while constraining Galactic foregrounds. BICEP Array will be comprised of four receivers to cover a broad…

Instrumentation and Methods for Astrophysics · Physics 2018-08-03 A. Soliman , P. A. R. Ade , Z. Ahmed , R. W. Aikin , K. D. Alexander , D. Barkats , S. J. Benton , C. A. Bischoff , J. J. Bock , R. Bowens-Rubin , J. A. Brevik , I. Buder , E. Bullock , V. Buza , J. Connors , J. Cornelison , B. P. Crill , M. Crumrine , M. Dierickx , L. Duband , C. Dvorkin , J. P. Filippini , S. Fliescher , J. Grayson , G. Hall , M. Halpern , S. Harrison , S. R. Hildebrandt , G. C. Hilton , H. Hui , K. D. Irwin , J. Kang , K. S. Karkare , E. Karpel , J. P. Kaufman , B. G. Keating , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , K. Lau , N. A. Larsen , E. M. Leitch , M. Lueker , K. G. Megerian , L. Moncelsi , T. Namikawa , C. B. Netterfield , H. T. Nguyen , R. OBrient , R. W. Ogburn , S. Palladino , C. Pryke , B. Racine , S. Richter , R. Schwarz , A. Schillaci , C. D. Sheehy , T. St. Germaine , Z. K. Staniszewski , B. Steinbach , R. V. Sudiwala , G. P. Teply , K. L. Thompson , J. E. Tolan , C. Tucker , A. D. Turner , C. Umilta , A. G. Vieregg , A. Wandui , A. C. Weber , D. V. Wiebe , J. Willmert , C. L. Wong , W. L. K. Wu , E. Yang , K. W. Yoon , C. Zhang

Multi-chroic dual-polarization bolometric detectors for studies of the Cosmic Microwave Background

We are developing multi-chroic antenna-coupled TES detectors for CMB polarimetry. Multi-chroic detectors increase the mapping speed per focal plane area and provide greater discrimination of polarized galactic foregrounds with no increase…

Instrumentation and Methods for Astrophysics · Physics 2012-11-01 Aritoki Suzuki , Kam Arnold , Jennifer Edwards , Greg Engargiola , Adnan Ghribi , William Holzapfel , Adrian T. Lee , Xiao Fan Meng , Michael J. Myers , Roger O'Brient , Erin Quealy , Gabriel Rebeiz , Paul Richards , Darin Rosen , Praween Siritanasak

DEPFET active pixel detectors for a future linear $e^+e^-$ collider

The DEPFET collaboration develops highly granular, ultra-transparent active pixel detectors for high-performance vertex reconstruction at future collider experiments. The characterization of detector prototypes has proven that the key…

Instrumentation and Detectors · Physics 2013-12-05 O. Alonso , R. Casanova , A. Dieguez , J. Dingfelder , T. Hemperek , T. Kishishita amd T. Kleinohl , M. Koch , H. Krueger , M. Lemarenko , F. Luetticke , C. Marinas , M. Schnell , N. Wermes , A. Campbell , T. Ferber , C. Kleinwort , C. Niebuhr , Y. Soloviev , M. Steder , R. Volkenborn , S. Yaschenko , P. Fischer , C. Kreidl , I. Peric , J. Knopf , M. Ritzert , E. Curras , A. Lopez-Virto , D. Moya , I. Vila , M. Boronat , D. Esperante , J. Fuster , I. Garcia Garcia , C. Lacasta , A. Oyanguren , P. Ruiz , G. Timon , M. Vos , T. Gessler , W. Kuehn , S. Lange , D. Muenchow , B. Spruck , A. Frey , C. Geisler , B. Schwenker , F. Wilk , T. Barvich , M. Heck , S. Heindl , O. Lutz , Th. Mueller , C. Pulvermacher , H. J. Simonis , T. Weiler , T. Krausser , O. Lipsky , S. Rummel , J. Schieck , T. Schlueter , K. Ackermann , L. Andricek , V. Chekelian , V. Chobanova , J. Dalseno , C. Kiesling , C. Koffmane , L. Li Gioi , A. Moll , H. G. Moser , F. Mueller , E. Nedelkovska , J. Ninkovic , S. Petrovics , K. Prothmann , R. Richter , A. Ritter , M. Ritter , F. Simon , P. Vanhoefer , A. Wassatsch , Z. Dolezal , Z. Drasal , P. Kodys , P. Kvasnicka , J. Scheirich

Antenna-coupled TES bolometers used in BICEP2, Keck array, and SPIDER

We have developed antenna-coupled transition-edge sensor (TES) bolometers for a wide range of cosmic microwave background (CMB) polarimetry experiments, including BICEP2, Keck Array, and the balloon borne SPIDER. These detectors have…

Instrumentation and Methods for Astrophysics · Physics 2015-10-28 P. A. R. Ade , R. W. Aikin , M. Amiri , D. Barkats , S. J. Benton , C. A. Bischoff , J. J. Bock , J. A. Bonetti , J. A. Brevik , I. Buder , E. Bullock , G. Chattopadhyay , G. Davis , P. K. Day , C. D. Dowell , L. Duband , J. P. Filippini , S. Fliescher , S. R. Golwala , M. Halpern , M. Hasselfield , S. R. Hildebrandt , G. C. Hilton , V. Hristov , H. Hui , K. D. Irwin , W. C. Jones , K. S. Karkare , J. P. Kaufman , B. G. Keating , S. Kefeli , S. A. Kernasovskiy , J. M. Kovac , C. L. Kuo , H. G. Leduc , E. M. Leitch , N. Llombart , M. Lueker , P. Mason , K. Megerian , L. Moncelsi , C. B. Netterfield , H. T. Nguyen , R. O'Brient , R. W. Ogburn , A. Orlando , C. Pryke , A. S. Rahlin , C. D. Reintsema , S. Richter , M. C. Runyan , R. Schwarz , C. D. Sheehy , Z. K. Staniszewski , R. V. Sudiwala , G. P. Teply , J. E. Tolan , A. Trangsrud , R. S. Tucker , A. D. Turner , A. G. Vieregg , A. Weber , D. V. Wiebe , P. Wilson , C. L. Wong , K. W. Yoon , J. Zmuidzinas

A measurement of the CMB E-mode angular power spectrum at subdegree scales from 670 square degrees of POLARBEAR data

We report a measurement of the E-mode polarization power spectrum of the cosmic microwave background (CMB) using 150 GHz data taken from July 2014 to December 2016 with the POLARBEAR experiment. We reach an effective polarization map noise…

Cosmology and Nongalactic Astrophysics · Physics 2021-01-15 S. Adachi , M. A. O. Aguilar Faúndez , K. Arnold , C. Baccigalupi , D. Barron , D. Beck , F. Bianchini , S. Chapman , K. Cheung , Y. Chinone , K. Crowley , M. Dobbs , H. El Bouhargani , T. Elleflot , J. Errard , G. Fabbian , C. Feng , T. Fujino , N. Galitzki , N. Goeckner-Wald , J. Groh , G. Hall , M. Hasegawa , M. Hazumi , H. Hirose , A. H. Jaffe , O. Jeong , D. Kaneko , N. Katayama , B. Keating , S. Kikuchi , T. Kisner , A. Kusaka , A. T. Lee , D. Leon , E. Linder , L. N. Lowry , F. Matsuda , T. Matsumura , Y. Minami , M. Navaroli , H. Nishino , A. T. P. Pham , D. Poletti , C. L. Reichardt , Y. Segawa , P. Siritanasak , O. Tajima , S. Takakura , S. Takatori , D. Tanabe , G. P. Teply , C. Tsai , C. Vergès , B. Westbrook , Y. Zhou

Experimental Analysis of a Self-Coherent M-QAM Receiver by Means of Recurrent Optical Spectrum Slicing and Direct Detection

High order modulation formats constitute the most prominent way for increasing spectral efficiency in transmission systems. Coherent transceivers that support such higher order formats require heavy digital signal processing (DSP), which…

Optics · Physics 2026-04-21 Kostas Sozos , Francesco Da Ros , Senior Member Optica , Metodi Yankov , Stavros Deligiannidis , George Sarantoglou , Charis Mesaritakis , Adonis Bogris , Fellow Optica

High-contrast Coherent Population Trapping based on Crossed Polarizers Method

We developed a method based on crossed polarizers to observe high-contrast coherent population trapping (CPT) resonance. Since crossed polarizers have a simple optical system, our method is suitable for chip-scale atomic clocks (CSACs). We…

Atomic Physics · Physics 2014-12-16 Yuichiro Yano , Shigeyoshi Goka

A Statistic for the Detection of Long Strings in Microwave Background Maps

Using analytical methods and Monte Carlo simulations, we analyze a new statistic designed to detect isolated step-like discontinuities which are coherent over large areas of Cosmic Microwave Background (CMB) pixel maps. Such coherent…

Astrophysics · Physics 2007-05-23 Leandros Perivolaropoulos

Detecting the polarization induced by scattering of the microwave background quadrupole in galaxy clusters

We analyse the feasibility of detecting the polarization of the CMB caused by scattering of the remote temperature quadrupole by galaxy clusters with forthcoming CMB polarization surveys. For low-redshift clusters, the signal is strongly…

Cosmology and Nongalactic Astrophysics · Physics 2014-09-24 Alex Hall , Anthony Challinor

Constraints on large-scale polarization in northern hemisphere

Present cosmic microwave background (CMB) observations have significantly advanced our understanding of the universe's origin, especially with primordial gravitational waves (PGWs). Currently, ground-based CMB telescopes are mainly located…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-02 Dongdong Zhang , Bo Wang , Jia-Rui Li , Yi-Fu Cai , Chang Feng