Dr. Berhanu T. Bulcha Profile

Dr. Berhanu T. Bulcha

at NASA Goddard Space Flight Ctr

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 16 August 2024 Poster + Paper

Superfluid-tight cryogenic receiver with continuous sub-kelvin cooling for EXCLAIM

Sumit Dahal, Peter A. Ade, Christopher Anderson, Alyssa Barlis, Emily Barrentine, Jeffrey Beeman, Nicholas Bellis, Alberto Bolatto, Victoria Braianova, Patrick Breysse, Berhanu Bulcha, Giuseppe Cataldo, Felipe Colazo, Lee-Roger Chevres-Fernandez, Chullhee Cho, Danny Chmaytelli, Jake Connors, Nicholas Costen, Paul Cursey, Negar Ehsan, Thomas Essinger-Hileman, Jason Glenn, Joseph Golec, James Hays-Wehle, Larry Hess, Amir Jahromi, Trevian Jenkins, Mark Kimball, Alan Kogut, Samuel Kramer, Nicole Leung, Luke Lowe, Philip Mauskopf, Jeffrey McMahon, Vilem Mikula, Mona Mirzaei, Samuel H. Moseley, Jonas Mugge-Durum, Jacob Nellis, Omid Noroozian, Kate Okun, Trevor Oxholm, Tatsat Parekh, Ue-Li Pen, Anthony Pullen, Maryam Rahmani, Mathias Ramirez, Cody Roberson, Samelys Rodriguez, Florian Roselli, Deepak Sapkota, Konrad Shire, Gage Siebert, Faizah Siddique, Adrian Sinclair, Rachel Somerville, Ryan Stephenson, Thomas Stevenson, Eric Switzer, Jared Termini, Peter Timbie, Justin Trenkamp, Carole Tucker, Elijah Visbal, Carolyn Volpert, Joseph Watson, Eric Weeks, Edward Wollack, Shengqi Yang, Aaron Yung

Proceedings Volume 13102, 131022I (2024) https://doi.org/10.1117/12.3018577

KEYWORDS: Receivers, Windows, Spectrometers, Helium, Telescopes, Cryogenics, Silicon

Read Abstract +

Proceedings Article | 31 August 2022 Presentation + Paper

EXCLAIM: the EXperiment for Cryogenic Large-Aperture Intensity Mapping

Thomas Essinger-Hileman, Peter Ade, Christopher Anderson, Alyssa Barlis, Emily Barrentine, Jeffrey Beeman, Nicholas Bellis, Alberto Bolatto, Patrick Breysse, Berhanu Bulcha, Giuseppe Cataldo, Lee-Roger Chevres Fernandez, Chullhee Cho, Jake Connors, Paul Cursey, Negar Ehsan, Jason Glenn, Joseph Golec, James Hays-Wehle, Larry Hess, Amir Jahromi, Trevian Jenkins, Mark Kimball, Alan Kogut, Luke Lowe, Philip Mauskopf, Jeffrey McMahon, Mona Mirzaei, Harvey Moseley, Jonas Mugge-Durum, Omid Noroozian, Trevor Oxholm, Tatsat Parekh, Ue-Li Pen, Anthony Pullen, Maryam Rahmani, Samelys Rodriguez, Konrad Shire, Gage Siebert, Adrian Sinclair, Rachel Somerville, Ryan Stephenson, Thomas Stevenson, Eric Switzer, Peter Timbie, Jared Termini, Justin Trenkamp, Carole Tucker, Eli Visbal, Carolyn Volpert, Joseph Watson, Edward Wollack, Shengqi Yang, L. Y. Aaron Yung

Proceedings Volume 12190, 1219009 (2022) https://doi.org/10.1117/12.2630054

KEYWORDS: Spectrometers, Galactic astronomy, Receivers, Cryogenics, Optical filters, Telescopes, Mirrors, Carbon monoxide

Read Abstract +

Proceedings Article | 27 August 2022 Poster + Presentation + Paper

Optical characterization and testbed development for μ-Spec integrated spectrometers

Maryam Rahmani, Alyssa Barlis, Emily Barrentine, Ari Brown, Berhanu Bulcha, Giuseppe Cataldo, Jake Connors, Negar Ehsan, Thomas Essinger-Hileman, Henry Grant, James Hays-Wehle, Wen-Ting Hsieh, Vilem Mikula, S. Harvey Moseley, Omid Noroozian, Trevor Oxholm, Manuel Quijada, Jessica Patel, Thomas Stevenson, Eric Switzer, Carole Tucker, Kongpop U-Yen, Carolyn Volport, Edward Wollack

Proceedings Volume 12180, 1218050 (2022) https://doi.org/10.1117/12.2630311

KEYWORDS: Spectrometers, Optical testing, Optical filters, Microwave radiation, Silicon, Resonators, Black bodies, Stars, Integrated optics, Fabry–Perot interferometers

Read Abstract +

Proceedings Article | 27 August 2022 Poster + Paper

Developing a new generation of integrated micro-spec far-infrared spectrometers for the experiment for cryogenic large-aperture intensity mapping (EXCLAIM)

Carolyn Volpert, Emily Barrentine, Mona Mirzaei, Alyssa Barlis, Alberto Bolatto, Berhanu Bulcha, Giuseppe Cataldo, Jake Connors, Nicholas Costen, Negar Ehsan, Thomas Essinger-Hileman, Jason Glenn, James Hays-Wehle, Larry Hess, Alan Kogut, Harvey Moseley, Jonas Mugge-Durum, Omid Noroozian, Trevor Oxholm, Maryam Rahmani, Thomas Stevenson, Eric Switzer, Joeseph Watson, Edward Wollack

Proceedings Volume 12180, 121804Z (2022) https://doi.org/10.1117/12.2629502

KEYWORDS: Spectrometers, Niobium, Silicon, Receivers, Antennas, Semiconducting wafers, Aluminum, Sensors, Thermography, Stray light, Infrared astronomy, Extragalactic astronomy, Galactic astronomy, Far infrared, Superconducting detectors

Read Abstract +

SPIE Journal Paper | 9 December 2021

Experiment for cryogenic large-aperture intensity mapping: instrument design

Eric Switzer, Emily Barrentine, Giuseppe Cataldo, Thomas Essinger-Hileman, Peter A. Ade, Christopher Anderson, Alyssa Barlis, Jeffrey Beeman, Nicholas Bellis, Alberto Bolatto, Patrick Breysse, Berhanu Bulcha, Lee-Roger Chevres-Fernanadez, Chullhee Cho, Jake Connors, Negar Ehsan, Jason Glenn, Joseph Golec, James Hays-Wehle, Larry Hess, Amir Jahromi, Trevian Jenkins, Mark Kimball, Alan Kogut, Luke Lowe, Philip Mauskopf, Jeffrey McMahon, Mona Mirzaei, Harvey Moseley, Jonas Mugge-Durum, Omid Noroozian, Trevor Oxholm, Tatsat Parekh, Ue-Li Pen, Anthony Pullen, Maryam Rahmani, Mathias Ramirez, Florian Roselli, Konrad Shire, Gage Siebert, Adrian Sinclair, Rachel Somerville, Ryan Stephenson, Thomas Stevenson, Peter Timbie, Jared Termini, Justin Trenkamp, Carole Tucker, Elijah Visbal, Carolyn Volpert, Edward Wollack, Shengqi Yang, L. Y. Aaron Yung

JATIS, Vol. 7, Issue 04, 044004, (December 2021) https://doi.org/10.1117/12.10.1117/1.JATIS.7.4.044004

KEYWORDS: Spectrometers, Receivers, Cryogenics, Sensors, Telescopes, Control systems, Mirrors, Galactic astronomy, Stars, Resonators

Read Abstract +

Proceedings Article | 15 December 2020 Presentation + Paper

µ-spec spectrometers for the EXCLAIM instrument

Mona Mirzaei, Emily Barrentine, Berhanu Bulcha, Giuseppe Cataldo, Jake Connors, Negar Ehsan, Thomas Essinger-Hileman, Larry Hess, Jonas Mugge-Durum, Omid Noroozian, Trevor Oxholm, Thomas Stevenson, Eric Switzer, Carolyn Volpert, Edward Wollack

Proceedings Volume 11453, 114530M (2020) https://doi.org/10.1117/12.2562446

KEYWORDS: Spectrometers, Cryogenics, Telescopes, Superconductors, Silicon, Dielectrics, Sensors, Spectrometer engineering, Carbon monoxide, Carbon

Read Abstract +

Proceedings Article | 13 December 2020 Presentation + Paper

Optical design of the EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM)

Thomas Essinger-Hileman, Trevor Oxholm, Gage Siebert, Peter Ade, Christopher Anderson, Alyssa Barlis, Emily Barrentine, Jeffrey Beeman, Nicholas Bellis, Patrick Breysse, Alberto Bolatto, Berhanu Bulcha, Giuseppe Cataldo, Jake Connors, Paul Cursey, Negar Ehsan, Lee-Roger Fernandez, Jason Glenn, Joseph Golec, James Hays-Wehle, Larry Hess, Amir Jahromi, Mark Kimball, Alan Kogut, Luke Lowe, Philip Mauskopf, Jeffrey McMahon, Mona Mirzaei, Harvey Moseley, Jonas Mugge-Durum, Omid Noroozian, Ue-Li Pen, Anthony Pullen, Samelys Rodriguez, Konrad Shire, Adrian Sinclair, Rachel Somerville, Thomas Stevenson, Eric Switzer, Peter Timbie, Carole Tucker, Eli Visbal, Carolyn Volpert, Edward Wollack, Shengqi Yang

Proceedings Volume 11453, 114530H (2020) https://doi.org/10.1117/12.2576254

KEYWORDS: Cryogenics, Optical design, Mirrors, Silicon, Sensors, Receivers, Telescopes, Stratosphere, Stars, Spectrometers

Read Abstract +

Proceedings Article | 13 December 2020 Presentation + Paper

Overview and status of EXCLAIM, the experiment for cryogenic large-aperture intensity mapping

Giuseppe Cataldo, Peter A. Ade, Christopher Anderson, Alyssa Barlis, Emily Barrentine, Nicholas Bellis, Alberto Bolatto, Patrick Breysse, Berhanu Bulcha, Jake Connors, Paul Cursey, Negar Ehsan, Thomas Essinger-Hileman, Jason Glenn, Joseph Golec, James Hays-Wehle, Larry Hess, Amir Jahromi, Mark Kimball, Alan Kogut, Luke Lowe, Philip Mauskopf, Jeffrey McMahon, Mona Mirzaei, Samuel Moseley, Jonas Mugge-Durum, Omid Noroozian, Trevor Oxholm, Ue-Li Pen, Anthony Pullen, Samelys Rodriguez, Peter Shirron, Gage Siebert, Adrian Sinclair, Rachel Somerville, Ryan Stephenson, Thomas Stevenson, Eric Switzer, Peter Timbie, Carole Tucker, Elijah Visbal, Carolyne Volpert, Edward Wollack, Shengqi Yang

Proceedings Volume 11445, 1144524 (2020) https://doi.org/10.1117/12.2561069

KEYWORDS: Cryogenics, Telescopes, Galactic astronomy, Spectroscopy, Sensors, Stars, Carbon monoxide, Carbon, Telescope design, Mirrors

Read Abstract +

Proceedings Article | 9 July 2018 Paper

SiAl alloy feedhorn arrays: material properties, feedhorn design, and astrophysical applications

Aamir Ali, Thomas Essinger-Hileman, Tobias Marriage, John Appel, Charles Bennett, Matthew Berkeley, Berhanu Bulcha, Sumit Dahal, Kevin Denis, Karwan Rostem, Kongpop U-Yen, Edward Wollack, Lingzhen Zeng

Proceedings Volume 10708, 107082P (2018) https://doi.org/10.1117/12.2312817

KEYWORDS: Silicon, Sensors, Aluminum, Copper, Cryogenics, Temperature metrology, Interfaces, Waveguides, Gold, Packaging

Read Abstract +

Showing 5 of 9 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years